Using hydroponics? Set up the ideal environment and optimize nutrient intake to get huge yields by following this weekly hydroponic grow schedule. Everything you need to know how to quickly and successfully germinate cannabis seeds. Compare different methods of marijuana seeds germination and choose the best one Germinate Marijuana Seeds We kind of view this as unnecessary, but have added it in because many people swear by it. The theory is that by weakening the tough hull, it makes it easier for the
Hydroponic Grow Schedule Guide Week by Week
Indoor marijuana cultivation is very flexible regarding the type of medium growers use. While many opt for organic soil, hydroponics are becoming increasingly popular because cannabis plants develop 30–50% faster and provide bigger yields in this medium. If you’re using the latter, it’s vital to understand the hydroponic grow schedule to get the best results come harvest.
Here’s a detailed week-by-week breakdown of the timetable throughout the vegetative and flowering stages so you can plan your cultivation season. Effective implementation can lead to a rewarding experience. Let’s begin!
Hydroponic grow schedule
Before looking at the hydroponic grow schedule, there are important steps to follow during the germination stage. Place your seeds in rock wool cubes instead of soil for easy transplanting to a hydroponic growing medium.
When taproots sprout, care for the seedlings until they produce several internodes and their cuttings develop lots of roots. Then, move them to your hydro system or stealth hydroponic grow box.
The hydroponic grow schedule is divided into two main stages, vegetative and flowering.
Follow these steps during the first two weeks of the vegetative phase:
Start your hydroponic grow schedule by running your hydroponics system for at least 24 hours before transplanting your seedlings to ensure it’s working. The temperature should be 75°F in the daytime and 65°F at night. Maintain the water temp at 70°F. Use a fish tank heater to warm it or add water to cool it to the optimal temp.
The next step of your hydroponic grow schedule before adding the plants into the system is to balance the TDS values and pH level. The TDS (Total Dissolved Solids) reading refers to the number of organic compounds in water, such as inorganic salts.
As your plants are quite small during this stage, use metal-halide (MH) lamps as grow lights for indoor plants for the hydroponic light schedule. It emits the white or blue part of the spectrum plants need to grow roots, stems, branches, and leaves. Use only half of your lamps and keep them 40 inches away from your crops.
During the first week of the vegetative phase, plants use plenty of nitrogen (N). As part of your hydroponic grow schedule, make sure your fertilizer has lots of this nutrient, which helps with root growth. Keep the TDS to about 650 ppm (parts per million) when adding it.
Note that the value drops as your plants consume nutrients and raises the pH level. Check and adjust it every two days to keep the pH at 5.8.
Your hydroponic grow schedule checklist should tell you to keep an eye on the cannabis humidity and temperature of the grow room, preferably daily. Maintain the humidity levels by spraying your plants. You can wet the floor to add moisture, but make sure it’s waterproof.
Inspect the cannabis roots during the week to ensure they’re healthy. By the end of this period, their length should be about the plant’s height.
In week two, adjust your hydroponic light schedule. Switch on all your lamps and reduce the distance to your plants to 20 inches. Don’t let the temperature for growing weed rise above 86°F, or your crops may start to burn.
Check the water level and add more if necessary. If the tips of leaves start turning brown, that’s a sign of nutrient burn. Lower the TDS level by about 35%.
At this point of your hydroponic grow schedule, get a fan and direct the breeze over the plants or at a wall. They’ll develop stronger and healthy stems because of the constant ‘exercise’ from the airflow.
When the leaf tips of different crops begin to touch, start the flowering phase. Trigger the blooming stage after the first week if you have many plants underneath one lamp. Stopping the growth early on prevents them from growing beyond the light coverage area.
When do you begin topping?
One task on your hydroponic grow schedule is topping or FIMming your plants. A good time is from the end of the vegetative stage until the second week of the flowering phase. Your crops are mature enough to deal with the training and have enough time to recover from the stress.
Topping cannabis is an excellent method to increase yields. At this stage of your hydroponic grow schedule, cut off the upper part of the plant to stop its upward growth. The crop’s growth hormones will spread to the lower sections, creating new branches. With the lateral growth, the plant gets bushier with more bud sites, resulting in greater yields of high-quality nugs.
The hydro flowering stage lasts about nine weeks. When your plants reach at least six inches in height and have four sets of leaves, they’re ready to bloom.
It’s time to switch the light cycle from 18/6 to 12/12. By giving your crops more hours of darkness, you mimick the coming of fall. This phenomenon triggers the plants’ innate response to flower before winter.
The hydroponic lighting schedule adjustment takes time before you notice a physical change in your plants. Continue to provide nitrogen-rich nutrients in the first three weeks. After that, you’ll need to switch to adding more phosphorus instead because your crops require it to produce flowers.
Another change in your hydroponic lighting schedule is using 600-watt high-pressure sodium vapor (HPS) lights. As these lamps are more powerful, regularly check for light burn signs on your plants’ foliage. Reduce the heat intensity by directing the fans to blow between the bulb and the canopy top. Note that this specification is for photoperiods. The autoflower hydroponic nutrient schedule is different.
Readjust the TDS to 840 ppm, humidity level to 70% RH, and pH for cannabis to 5.8. Check your plants’ foliage for discoloration and signs of stress such as disease, pests, nutrient toxicities, or deficiencies. Make sure the roots are healthy.
At this stage of your hydroponic grow schedule, stop topping your crops. Continue to prune and remove plant parts that aren’t needed, such as the small side shoots. Your crops will channel the freed-up resources and energy to bud development.
As part of your hydroponic light schedule, check the distance between the lamps and the top canopy as your plants get taller quickly. Adjust the bulbs, if necessary, to maintain a height of 20 inches, so the top foliage doesn’t burn. Unless you’re an experienced cultivator, don’t super crop the stems as it’s a form of high-stress training (HST).
Another equally important task on your hydroponic grow schedule at this stage is to ensure there’s proper airflow below the canopy. Trim unwanted leaves or use a fan to improve circulation.
The cannabis hydroponics nutrients guide recommends providing your plants with more phosphorus and potassium (K) instead of nitrogen in the third week. Your crops need them to produce buds. Before adding the new mix, flush your crops with plain water, then wait a couple of days.
As they grow taller, your plants also consume more moisture, so follow a hydroponic watering schedule and keep them hydrated. Check the leaves for signs of discoloration and ensure the roots are white.
Inspect your plants’ preflowers to identify any males and remove them, so they don’t pollinate your females. This step is unnecessary if you use feminized seeds, as 99% of your plants will be bud producers.
Next on your hydroponic grow schedule is regularly monitoring the temperature, pH, and TDS levels. The water should smell fresh. Bring the humidity down to an RH of 60% this week.
In week 4 of the flowering stage, your hydroponic weed stops growing tall. Instead, they continue to produce buds. You start to see more colas and smell the aroma. You can safely super crop your plants one last time.
Your hydroponic nutrient schedule should continue to focus on giving your plants high levels of potassium and phosphorus. They play a vital role in trichome production. Bring the pH down to 5.5 for maximum absorption of these minerals.
The focus of your hydroponic lighting schedule this week is providing your crops with as much light as possible. More illumination increases yields and bud potency. One way to do this is to move the HPS lamps closer to the upper canopy. You can also delay moving the bulbs away from the plants as they get taller.
During this hydroponic light schedule, watch out for indications of heat stress as the proximity of the lamps can cause leaves to burn. Your plants will give you signs such as burnt or yellowing leaf tips. Test the intensity by placing your hand above the canopy. If it feels right, your crops will also feel comfortable.
If you’ve been following the hydroponic weed nutrient guide up until this point, your plants will be getting more nutrients to produce bigger nugs. Provide your crops with carbon dioxide (CO2) to sustain their growth and enhance bud size and density. Make sure to add the gas during the light-on period.
Each plant can take in as much as a gallon of water every day, so adjust your hydroponic watering schedule accordingly. Check your buckets daily to ensure they’re full.
Bring the pH up to 5.8 towards the end of this week. Don’t increase nutrients to maintain the balance of pH and TDS levels. Air circulation is also important, so keep a fan blowing.
By this week, the flowers get bigger, so you need to adjust the nutrient schedule for hydroponics. The buds look gorgeous with lots of pistils and trichomes. This is the time to add a booster to your blooming mix to give your plants more potassium.
Pay attention to the white layer surrounding the nugs. A whiter hue means healthier buds. When it turns orange, it’s almost time to harvest.
This is the final two weeks of your hydroponic grow schedule. The buds continue developing, mainly becoming dense and producing THC, other cannabinoids, flavonoids, and terpenes. Reduce the nutrients by bringing the TDS level down from 1300 ppm to 750 ppm. Doing so allows your crops to use up the nutrients, ensuring chemical-free nugs at harvest time.
At this stage of your hydroponic grow schedule, you may see leaves at your plants’ base yellowing and dying, but it’s normal. Your main concern should be mold, even if it’s a tiny bit. Carefully cut the affected part and dispose of it.
Harvest time draws near in the ninth week. Your hydroponic nutrient schedule focuses on weaning nutrients off your crops by lowering the water pH to 5.5. Harvesting buds with little nute leftover makes the process of drying and curing more efficient, resulting in cleaner and tastier weed.
Stay vigilant at this late stage of your hydroponic grow schedule. Monitor your plants to identify and remove rot and pests that can destroy your crops.
The color of the trichomes will let you know when the buds are ready to harvest. When 60–70% of the trichomes change from translucent to milky white, THC concentration is at its maximum, and it’s time to collect the nugs.
Hydroponic grow schedule for maximum results
Choosing hydro as an alternative medium to soil is the first step to having marijuana plants that grow faster and produce massive yields. It’s vital to plan and follow a hydroponic grow schedule to maximize your results.
Now that you know what you need to do, we suggest keeping a hydro grow journal to document the process. Use it for future reference and to pinpoint any areas that you need to improve. Deep water culture is an effective alternative to expensive hydroponic systems if you prefer to do it yourself.
Please share it with your friends on social media if this article has been helpful. You can also subscribe to our newsletter or visit our blog for more cultivation tips.
About the author: Parker Curtis
Parker Curtis has around a decade of cannabis-growing experience, specialising in soil-less and hydro grows. He’s mastering outdoor, greenhouse, and indoor grows.
How To Quickly And Successfully Germinate Cannabis Seeds
All cannabis plants, whether tall and lanky Sativa trees or compact and sturdy Indica bushes, start from a single weed seed. This tiny brown nut contains everything necessary to eventually yield hundreds or even thousands of grams of potent buds! However, to reach that point, it’s important to place the seed in a special environment that will trigger life inside it, crack the shell open, and let the roots and stalk out.
In this article, we’ll be explaining how to germinate cannabis seeds and tell you about the best ways to do it. Before we start though, it’s important to know what environment cannabis seeds are most likely to pop in. Since in nature, they germinate in spring, logically, you want to put them in conditions that mimic fertile ground in spring – think plenty of moisture, little light, and mildly warm temperatures of around 18-22 C (64-71 F). Now, you’re ready to learn about the best ways to germinate cannabis seeds. Let’s dive right in!
Main Methods Of Cannabis Seed Germination
The following three methods have proved to be some of the easiest as well as the most effective. This means each of them is a great way to help your cannabis seed to sprout.
Germinating Cannabis Seeds In Soil
When spread naturally, marijuana seeds germinate directly in soil. So, why not recreate the natural process? This method is great for beginners because of how few steps it requires. All you need to do is make a 1.5-2cm (0.5-1 inch)-deep hole in the soil, place your seed in it, and lightly cover it with more soil. Then, water the spot above the seed and keep an eye on it to make sure the area stays moist most of the time. It’s also a good idea to cover your starting pot loosely with a plastic bag or a wrap to keep the environment humid and warm until the seedling shows up from the soil. This method is preferred by many because it eliminates the stress of transplantation that, at times, can be too tough on fragile seedlings.
Cannabis Strains For Beginners
Germinating Weed Seeds In Water
If you’re not ready to get your hands dirty just yet, it’s fine! Some growers start their seeds in a glass of water. This method is easy and quite effective. Practice shows that germinating in water normally makes around 90% of weed seeds pop. This method is pretty self-explanatory – all you need to do is place your cannabis seeds in a glass of fresh water away from light. Usually, the nuts crack open on the second day. For older seeds, however, the process may take up to 7 days, which is also fine. After the taproot shows, the seed is ready to be planted. Some growers wait for the seeds to drown (about 24 hours in), then transfer them to a wet paper towel – the method we’ll be explaining next.
How To Germinate Marijuana Seeds In A Paper Towel
This next method is a true classic that’s been shared grower to grower for generations. It’s also pretty simple and has everything you need to maintain the perfect environment for cannabis seeds to pop. To use this method of germination, place your seeds on a clean paper towel, fold it over them, and spray the towel lightly with water. After that, put the moist towel on one plate and cover it with a second plate to keep the seeds in the dark and not let the moisture evaporate. That’s pretty much it! This method can also be modified and improved upon. For example, instead of a paper towel, you can use two cotton pads for each of the seeds – these will be easier to open when it comes to removing the seed. Instead of plates, you can also place your seeds in an airtight container or ziplock bag to ensure the moisture stays in the towel/cotton pads.
Easy-To-Grow Cannabis Strains
How To Germinate Cannabis Seeds In Cotton Wool
Start with making a layer of cotton wool moist but not dripping wet, so that the excess water won’t suffocate the seeds. Then place your seeds on top, cover them with another layer (also moist), and put everything in a dark place.
Make sure the cotton wool is covered and won’t dry out while the seeds germinate.
The difficulty with germinating cannabis seeds in cotton wool is that the emerging roots may get entangled in it. For this reason, it’s better to use cotton pads in which cotton is more compacted and there is less fiber sticking out.
How To Germinate Autoflower Seeds
Cannabis is cannabis, and germinating autoflower seeds is exactly the same as any other variety. Just make sure to use the most effective technique because with autos you don’t want to lose any time at any stage, including germination.
Also, autoflower growers often choose the straight-into-the-final-pot method of germination to spare their precious babies any shock of transplanting.
Alternative Methods Of Cannabis Seeds’ Germination
Now let’s move to the more modern methods of cannabis seeds germination. These aren’t necessarily better in terms of germination rate, but still have some pros as well as cons that we find important to explain.
Germinating Cannabis Seeds In Peat Pellets Or Starter Cubes
If you want to give your seeds special treatment and make them feel loved from the very first day in your grow op, you might want to get your hands on peat pellets or starter cubes. So, how do you germinate marijuana seeds in rapid rooters, peat pellets, and starter cubes? These are all individual plugs of peat or a special seed starter mix that are incredibly easy to use and don’t leave much room for error. In the case of peat pellets (you may also know them as jiffy pellets), all you need to do is soak them in warm water, which will make the pellets expand. Then, squeeze the excess moisture out and place your seed (pointy side down) inside the pellet. Starter cubes and rapid rooters don’t require squeezing, but whatever you choose, you need to make sure your medium is slightly moist at all times. One of the greatest advantages of this method is that the seed germinates in complete peace and doesn’t need to be transferred from the pellet/starter cube/rapid rooter. After the seedling is out, just plant it into the soil together with what you were germinating the seed in.
Fast Flowering Cannabis Seeds
If you’re wondering how to germinate marijuana seeds for hydroponics, peat pellets, unlike other methods from this article, aren’t suitable for hydroponic setups. However, the rest of the techniques we’ll be discussing can be used for both soil and soilless media.
Germinating Cannabis Seeds In Rockwool Cubes
If you’re growing your seeds in a hydroponic setup, you might want to look into rockwool cubes for germination. As a material, rockwool is inert, cheap, and easy to find. Fans of hydroponic grows often choose rockwool for its mold-resistant qualities. The process of germination in rockwool cubes is the same as described in the previous method: simply place a seed inside a cube, water it, and keep it moist until the seedling is out.
Even though many growers prefer using rockwool for germination of their cannabis seeds, this method has quite a few drawbacks. First of all, the pH of new rockwool is not suited for cannabis seeds. It’s far too high and needs to be lowered before use. That’s why rockwool requires soaking overnight in pH-ed water and properly rinsed afterward. The second drawback of using rockwool for germination is that it’s a synthetic material that’s bad for both your health and the environment. When working with rockwool, it’s advised to use gloves and protective masks, because little pieces of the material can easily get into your mouth, eyes, and even end up in your lungs. Lastly, germination rates for seeds placed in rockwool cubes aren’t that great either – you can wait for your seeds to pop for weeks without any result.
Cannabis seed germination methods comparison table
In this article, we’ve covered five main germination methods. To sum everything up, here’s a comparison chart that can help you decide on how to germinate your marijuana seeds.
How To Germinate Cannabis Seeds For Hydroponics
DWC systems have seen a huge rise in popularity among home growers, making the question of germinating cannabis seeds for hydroponics extremely relevant. Is it any different? Not really, because the basics stay the same. You can still start with the paper towel method or a glass of water. However, we suggest using either starter cubes or rockwool when germinating cannabis seeds for hydroponics, as this will take the risk of damaging the sprouts to the minimum.
Here’s what you’ll need to do:
- Soak your starter cubes or rockwool pieces in clean, pH-neutral water for an hour.
- Place a seed inside the cube.
- Put the starter cubes/rockwool cubes with seeds in them inside the grow tray.
- Fill the bottom of the grow tray with an inch (2.5cm) of clean water or a very light nutrient solution.
- Dial in the temperature (20-30C/69-89F) and humidity levels (80-90%).
- Keep the lid on for conditions close to a greenhouse.
That’s it! After a couple of days, you’ll see your sprouts emerging.
How Long Does It Take For Marijuana Seeds To Germinate?
Your preferred method won’t make much difference in how long it takes for marijuana seeds to germinate. What actually matters when it comes to germinating cannabis seeds quickly is the quality of the seeds, their genetics, and how old they are. Normally, fresh seeds of good quality will never take more than 5 days to show taproot. However, if your seeds have been waiting for their hour for a little too long, it may take them around 10 days to germinate. Luckily, this won’t affect any characteristics of the future plant.
How To Germinate Old Cannabis Seeds
There are several tricks for germinating old cannabis seeds, all of them aimed at making the shell softer or thinner to help the sprout break out:
- Germinating cannabis seeds with hydrogen peroxide. Before germinating old cannabis seeds, try soaking them in a glass of room-temperature water with a teaspoon of hydrogen peroxide mixed in. This solution will help rehydrate and soften the seed’s shell. After 24 hours in this solution, switch to your preferred germination method.
- Scarifying old seeds. This is another proven method of germinating old cannabis seeds. Try lining a small matchbox with sandpaper, placing the seeds in, and shaking them there for about a minute. This will cover the seeds in microfractures, making it much easier for the sprout to break through. After scarifying the seeds, use your preferred germination method.
Tips For Caring After Germinating Seeds And Seedlings
As we’ve already pointed out, cannabis seedlings are very gentle, and you need to be careful not to put them in any danger or stress. Use the following tips, and your seedlings will make it safely to the next stage of their lifecycle.
In order to germinate and survive the first days of life, cannabis seeds and seedlings need to be kept under certain conditions like warm temperature, high levels of humidity, darkness for seeds/lots of light for seedlings, and, of course, peace and quiet. Outdoor environments can therefore be too unpredictable – if the weather changes and brings heavy rain or wind, or if a bird or cat decides to try and snack on the seedling, the young plant most likely won’t survive and you’ll have to start all over. That’s why we recommend germinating your seeds and growing seedlings indoors, where you have full control over their environment.
Choose Soil For Seedlings Wisely
There’s a common term among growers used to describe soil extremely rich in nutrients, and that’s “hot”. While hot soil is beneficial for cannabis in general, especially when made and used correctly, hot nutrient-rich soils, or super soils, are not the best option for young marijuana seedlings. In the early stages of cannabis development, the plant’s nutrient needs are quite low, and too much of them can actually hurt the young plant’s health. So, make sure to use more neutral soil for seedlings. A good trick that you can implement in your practice is to cover nutrient-rich soils with a layer of a more neutral medium and plant the seedling in this upper layer. The plant will develop, and once it’s ready for bigger nutrient intake, its roots will reach the underlying “hotter” soil. Remember that the vegetative stage requires nitrogen-rich media.
Give Seedlings Enough Light
After spending so much time inside its dark shell, seedlings are hungry for light, and plenty of it! As we suggest starting your plants indoors, this means you’ll need to install a light to satisfy the seedlings’ needs. The vegetative stage of cannabis requires mostly blue light spectrum, so anything from fluorescent lamps to full-spectrum LEDs, 100W and up, will work fine for seedlings. Just make sure the light is placed close enough to the plants. The optimal distance for fluorescent lights is 5-6 inches (13-16cm) and 8-12 inches (20-30cm) for LEDs. In case the seedlings need more light, they will let you know by getting tall and leggy. This condition is dangerous for them, so make sure your baby plants are receiving enough light.
Keep Them In A Mini-Greenhouse
Finally, another nice touch to keep your sprouts safe and sound would be to provide them with a small improvised greenhouse of their own. Loosely covering the starting pots or pellets with a plastic bag will do the trick. However, in garden stores, you can also find specialized containers with tall transparent lids. Whatever you choose, this will help the seedlings stay warm, hydrated, and safe from any dangers of the outside world.
Is It Legal To Germinate Cannabis Seeds?
This is a tricky question to answer, as the situation depends on the jurisdiction of your country of residence.
If you’re a citizen of Canada, the U.S., the Netherlands, or Spain – all countries with lighter cannabis policies – it’s legal to germinate cannabis seeds. However, additional rules apply depending on what part of the country you live in and what seed type you want to germinate. Nonetheless, it’s safe to assume that germination of cannabis seeds is legal everywhere where it’s legal to grow cannabis, and especially if you’re planning to start a garden of medicinal marijuana, you likely won’t break any rules by germinating seeds of strains with THC content lower than 1%.
In other countries, governments may draw the line at germination. For example, in the UK, it’s legal to trade and keep cannabis seeds, but you have to be careful with their germination, as this is where the law gets broken.
In our blog, we’ve covered the legality of cannabis seeds and everything you can do to stay safe. For more information, check out the following articles:
- “Where in the World Is It Legal To Buy Cannabis Seeds?” for tips for residents of Europe, China, South Africa, New Zealand, Turkey, and more.
- “The Legality Of Cannabis And Its Seeds In The UK”
- “Is It Legal to Buy Cannabis Seeds in the USA?”
- “Canada Pot Laws”
What’s the best temperature for germinating cannabis seeds?
Cannabis seeds prefer a warm environment for germination, with the most optimal temperature being 25C (78F). However, it’s okay to add/subtract a couple of degrees from this number while still keeping the air warm.
What’s the best pH for germinating cannabis seeds?
The perfect pH for cannabis seed germination is between 5.5-6.0.
What’s the best soil for germinating cannabis seeds?
It’s better to use light, easily drainable soil for germinating seeds, as this will not restrain the growing sprout. The soil for germination and seedlings should also be neutral or very light on nutrients – “hot” and nutrient-rich soils are only suitable for mature cannabis plants.
What’s the best humidity level for germinating cannabis seeds?
The germination stage requires high humidity levels of 80-90%.
What’s the fastest way to germinate cannabis seeds?
All methods described in this article are more or less the same in terms of the speed of germination. Much more depends on the freshness of your seeds – the fresher the seeds, the sooner they will germinate.
Do weed seeds need light to germinate?
Weed seeds germinate in the dark. So, even after you put a germinated seed in soil, you can keep the lights off. Until the seed pops up through the surface, that is.
Will cracked seeds germinate?
The protective shell on seeds is there for a reason, so any cracks or chips decrease the chances of successful germination. However, much depends on how long ago the crack appeared. And, anyway, it never hurts to try.
How long for cannabis seeds to break soil?
If you put a dry seed into wet soil, don’t expect the sprout to appear sooner than 60 hours. For pre-soaked beans or those that were put into the soil when they had shown a taproot, this may happen earlier. Sometimes in as little as 12 hours.
Cannabis seeds sold in reputable seed shops sprout very fast. Seeds that are old or have been stored improperly may take up to 10 days to sprout.
Starting Off Right
Now you can see that growing marijuana from seed isn’t at all that hard. Just remember to give your seeds enough TLC and dial in some environmental conditions to fit their needs. We’ve shown you some of the easiest and most effective methods of germinating pot seeds. Which one is your personal favorite? Let us and fellow growers know in the comments below.
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I’m trying my first seeds using the glass of water method, some seeds have sunk to the bottom and some are floating, are the floating ones no good?
If you lightly “tap” the floaters after they’ve soaked overnight, they’ll sink, they just weren’t heavy enough to break the surface. If they float back up, let them soak another day and tap it. If it still floats, you may have an issue. However, I’ve experienced floaters and after the overnight soak, every floater I needed to tap, sank, and germinated fine.
I used a cotton pad, wet in clear container w/ saran wrap over put in sunlight and after first day checked every 12hrs, and they cracked on the 2nd day. worked well
Hello Keepinit, we are happy to hear that our article is useful to the growers, we wish you best of luck in your hobby!
what i find the most effective way is placing in a coffee filter then putting a coffee filter on top, then put on a plate and place a cup over the seeds and coffee filters and keep moist until germination occurs
What’s the longest you’ve ever had to wait for a seed to germinate and still had a normal, healthy plant? I’ve had 100% success the last 4 strains I’ve germ’ed with seedlings showing in 3-5 days. Recently got 10 Northern Lights seeds from a local vendor, and the first three went 15 days and nothing. I retried with two more and I’m on day 8 and still nothing. Maybe just a bad batch of seeds.. I’m behind schedule now for my next grow!
most good and healthy seeds sprout after a couple days, some older seeds take longer. I usually give them a couple of days to germinate if i still see no signs after 5-6 days i start to get worried.
15 days is a lot. I’ve waited a week at most, longer than that u will see the seed get darker, kinda sluggish nd swelled, that’s a dead seed decomposing, sometimes they just flood
How’s it going? I’m new to the game and was wondering the best way of altering PH level of water? I have an abundance of 500ml bottled water that has a PH of 7.9, a good way off the optimal PH 6 required I know, but is there a way of adding solution to each bottle separately and if so any suggestions of best solution to use? Thanks.
Yes there is ph tester for water that takes drops to test which is the most efficient way to test ph. Also to adjust the ph you want to get ph-up or ph- down I believe general hydroponics is the company for it.
The pic at the top is wrong ,the seed is up side down pistols or the hairs should come out of the seed butt hole that’s how the pollen gets in .2 hairs pair seed one for seed the other for the food sac ,
What happens to Seeds overtime they dry out and the carbohydrate that’s inside of them to feed them becomes weaker. As far as the potency of genetics that does not change however I recommend soaking all Seed between 12 and 24 hours. I use of seed starter MassiveGro invented formula pH to round 5.8 I pour about a quarter inch in a cup put my seeds in there put the next couple on top of it to force them down into the liquid. Occasionally give them a shake you don’t want them to be floating when you plant them. Then I soak my paper towel are use the nice cotton felt like paper towels I think a Brauny or veva with that seed starter formula pour the seed right onto it a ring out the excess moisture put it in a 1 gallon freezer bag place bag up high where it is 80° or put it on the heat mat with a thermostat and check it after one day because it’ll sprout fast. I like to let the sprout get a half inch long and then plant it The biggest problem you have with old seed is the lack of carbohydrate it may sprout then usually burn up all it has and die right away. Unless your seeds got hot you probably won’t have any problem unless they’re more than four years old. Old seed you can assist the carbohydrate by watering the soil with potato water a few drops of corn syrup or a fish fertilizer soak and Endo Mycorrhiza sprinkled around the seed. NPK industries wrong line of Omina is a good gentle amino acid helps break down substances so plants uptake faster when everything’s good I usually mix half strength of the weak dosage. NPK raw stuff can be bought on Amazon in small 2 ounce packages there everything’s pretty concentrated usually last you quite a while. But This is where a seed starter formula comes in because it usually has the carbohydrate to keep it going right away. I use pro mix BX with added perlite and when plants are tiny etc. I always measure my water and times with measuring spoons till a plant is healthy pro mix keeps plants from damning off as long as you’re not drenching it right away because it doesn’t dry out very fast easiest way to kill seeds to drowned it that’s why I measure watering and write it down I don’t try to push or stress my plants I either used seed starter fertilizer or plain pH water until they are about 6 inches high before a poor nutrients to them and once a week I do a full soil drench and drain prior to that you’re probably talking tablespoon or two of Water. Never let your pH get above 6.4 you lock out nutrients and you also root slower, once your plants are growing an strong between the 6 inch and 12 inch stage I’ll use about two weeks of red light will actually give you more roots. You can go to in NPK-University.com sign up for Harley Smith’s advanced grow you won’t be sorry Harley is like the master of the world lol
Germinate Marijuana Seeds
We kind of view this as unnecessary, but have added it in because many people swear by it. The theory is that by weakening the tough hull, it makes it easier for the tender seed to emerge. Some gardeners use a nail file to put a small nick in the marijuana seed; others use sandpaper to thin and scratch the hull.
Peat pellets or Jiffy pots and Rapid rooters
These can be found at most garden centers in home improvement or large department stores such as Home Depot, Lowes, Walmart, etc. These are thin wafers filled with peat (Jiffy Pots) or composted bark (Rapid Rooter) and a fabric outer layer that plump up considerable when wet and only cost about 10 cents apiece when bought in bulk though most are sold with a plastic humidity dome. From experience, these are the most foolproof method we have yet to use and have a high success rate. Simply wet the wafer and after it expands, push the marijuana seed in the center just until it is no longer visible. Then place the pot in the humidity dome and wait. Several days after the sprout appears, put the peat pot in the medium of your choice. Success can be high with this method. Rockwool cubes used for germination Rockwool is made out of spun melted rock or mineral fibers. They hold moisture quite easily and may be used in the same manner as peat pellets. Because they are slower to dry out, a humidity dome is usually not required. Starting the seed off in Rockwool is an excellent method of germinating marijuana seeds especially if you are going to use hydroponics for growing. One of the best characteristics of Rockwool is it contains a lot of air and is generally a nice start to your seeds life. Try and use 1 inch X 1 inch cubes, soak the cubes with water then squeeze a little excess water out, place the seeds (sideways) into a small hole in the top, pinch the hole together or cover with more Rockwool, then place the Rockwool cubes in a tray container. You can fill the container with water later on and the Rockwool will suck it up using capillary action. Try and use good quality spring water, it can be the cheap stuff, or rain but it is better than water from the faucet which might be outside the pH required by marijuana. Place the tray in a warm dark spot to germinate. After a day or so you will see the seeds crack open and the roots take hold in the medium. You can then transplant the entire Rockwool cube over to the main hydroponic system.
How to look after marijuana seedlings
Your marijuana plant will start to grow very quickly after germination. It is very fragile when it is small and sometime growers put a humidity dome over the top of them which protects and keeps them warmer but make sure there are holes drilled into the dome so that some air can make it in. Keep the seedlings away from draughts and use a very diluted nutrient mix when watering. Pot it up to a bigger pot once it has established itself and filled the pot or container you started it in.
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Final notes on marijuana seed germination:
No matter which method you use, the temperature requirement is the same. Optimal is about 75º to 80ºF (24º C to 26.8ºC). Going above 90º F (32.2º C) can damage the seedling. Seedlings may still germinate as low as 65º F (18.3º C), but will take longer. Germinating marijuana seeds is quite easy, so why do people struggle so? Too wet, too cool and too much handling are the main culprits. Many growers swear by the use of distilled or RO (reverse osmosis) filtered water. We have just about the hardest tap water in the USA, yet never have any problems. Use purified water if it makes you feel better, but personally we see no need to. If you are or want to be a serious grower, keep different weed strains separate from each other. Be sure to label your seeds with which strain and date before you start germination.