How To Germinate Weed Seeds

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Learn how to germinate marijuana seeds on your FIRST try! Reach 100% seed germination rates by using our step-by-step tutorial. There are numerous phases of cannabis cultivation that must be completed before you may be greeted with copious amounts of dank buds. You won't have a plant Buy Cannabis Seeds – Got your seeds but now you're curious about how long cannabis seeds germinate? – Amsterdam Seed Supply

How to Germinate Cannabis Seeds

An in-depth guide on how to germinate cannabis seeds. Discover different techniques on how to germinate marijuana seeds to ensure a successful cannabis crop.

Everything has a beginning.

Cannabis seeds, like all seeds, must undergo the germination process before it can grow into a weed-yielding beauty.

Countless cannabis germination guides litter the internet. However, none go as in-depth as our seed germination tutorial. Read along to learn how to germinate marijuana seeds like a pro.

You’ll discover everything you need to know about the art of germinating marijuana seeds. From the necessary equipment to different germination methods and everything in between, we’ve got you covered.

The Chemistry Behind Cannabis Seed Germination

Cannabis seeds require the right conditions to sprout.

Without the proper temperature, moisture level, or oxygen saturation, weed seeds will not germinate. Although you can readily germinate seeds outdoors, nothing beats controlled germination indoors.

Let’s take a look at the three primary elements that influence the germination rates of marijuana seeds.

Water

Water is the key player in the process of germinating marijuana seeds.

The outer-layer of the cannabis seed acts as a protective casing that provides a two-fold defense — prevent damage to the inner embryo and prevent minimal moisture from premature germination.

However, if the marijuana seed is saturated with water, it will eventually absorb the moisture and kick-off the germination process.

Oxygen

Once the embryo activates through water saturation, it requires oxygen to jump-start the respiration process. Oxygen fuels respiration, which unlocks food stored within the embryo.

Energy

After the respiration process, the embryo consumes the food stores, which in turn produces energy. Energy is the necessary product that propels the germination stage onwards.

Warmth

Even if cannabis seeds have access to water, oxygen, and energy, it’s all for nothing unless it has access to warmth.

As long as cannabis seeds experience 72-78°F during the initial germination process — they’ll burst forth from the ground and spread their primordial leaves under the sun or artificial light.

The three most important elements for successful weed seed germination

Why It’s Important to Germinate Weed Seeds Indoors

At its core, the germination process lays the foundation of cannabis plants.

Overall, marijuana plants will underperform without proper germination techniques compared to those that experienced ideal conditions during the germination process. Therefore, it’s always best to harness an indoor environment when germinating marijuana seeds.

What to Look For Before Germinating Marijuana Seeds

Before you begin the germination process, there are a few things you must look for.

Let’s take a brief look at each.

Damaged Marijuana Seeds

Ordering feminized or autoflowering cannabis seeds online is the best way to acquire top-shelf genetics.

The seeds, however, may experience a few bumps on the road during the shipping process. With this in mind, you must look over each seed to ensure there isn’t any damage.

As long as each weed seed is undamaged, the germination process will be smooth.

The Cannabis Seed’s Age

Next, it’s a good idea to write down the date on each seed pack once received.

By doing so, you’ll have a clear understanding of a seeds’ age. Like all things, cannabis seeds lose their luster as the years go by. Cannabis seeds may remain viable for decades. However, germination rates decrease over time.

Therefore, you should only germinate seeds that are properly stored for a maximum of 6-months.

The Cannabis Seeds Color

Lastly, you must check the cannabis seed’s color.

Cannabis seeds come in different sizes and exhibit various markings across the outer seed coat. However, the seed’s color is an excellent indicator that represents seed maturity.

In other words, light green to pale white seeds are immature and are likely unviable. Therefore, always make sure that your cannabis seeds are light to dark brown color before germination.

Take a close look at the seeds that you receive for damage or discoloration

Should You Use a Seedling Heat Mat?

Many new cannabis cultivators ask if they should incorporate a seedling heat mat into the equation.

Although seedling heat mats are excellent tools to ensure fast germination, they are not always necessary. Seedling heat mats work by producing a gentle warmth that won’t rapidly dry cannabis seeds during the germination process.

However, they may be overkill if you utilize them during hot days, such as those during the summer months. Alternatively, they are essential during colder months during the winter. Therefore, you can choose to harness a seedling heat mat based on the time of year that you choose to germinate marijuana seeds.

Three Easy Methods To Germinate Cannabis Seeds Indoors

Now that you have a broad understanding of germinating marijuana seeds let’s get some weed seeds poppin‘ with a few different step-by-step tutorials.

You’ll have a better idea of which germination technique to choose once you’re done reading this section.

1. How to Germinate Marijuana Seeds in Soil in Five Easy Steps

If you want to germinate weed seeds au natural — there’s no better option than using soil.

Here’s a list of what you’ll need to germinate cannabis seeds in soil:

  • Feminized or autoflowering cannabis seeds
  • Eco-friendly “starting” container
  • Soil
  • Water
  • Label
  • Heat mat (optional)

As you can see, the list above isn’t extensive in the least. In other words, germinating marijuana seeds in soil is incredibly affordable.

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Step One

First, fill an eco-friendly starting container with soil.

The golden rule? Don’t pack down the soil. Remember, the soil you choose must exhibit a loamy consistency. Hardpack soil does not allow proper water drainage and oxygen circulation, which, as you learned previously, are critical components for the seed germination process.

Furthermore, if you choose to use a heat mat, place the eco-friendly containers on top to warm the medium adequately.

Step Two

Label each container.

The last thing you want to do is forget what seed you placed into each container — especially if you’re germinating multiple cannabis strains at once.

Step Three

Now, it’s time to sow the cannabis seed.

Create a small hole that’s roughly 0.25-inches (6mm) deep. Gently place the seed inside the hole and cover it. It does not matter which direction you put the seed — believe us when we say that the seed and gravity will sort things out.

It’s important to note that each eco pot should contain a single cannabis seed.

Step Four

Gently pour a small amount of water into the area where you buried the cannabis seed.

At this point, you must ensure that the cannabis seed never dries out. Once the germination process begins — there’s no turning back. Therefore, allowing cannabis seeds to dry will guarantee inadequate germination or premature death.

Ultimately, you must monitor the soil and continuously apply water until the seed sprouts.

Step Five

The final step is patience.

The moment the seed is planted, most beginners ask: how long does it take to germinate cannabis seeds, or how can I germinate my seeds fast?

Healthy cannabis seeds typically break the surface within 2-4-days. Older seeds, however, may take upwards of 12-days to sprout.

The germination phase is an incredibly vulnerable moment for cannabis seeds. Therefore, Do notwe repeatdo not dig up the seed to “check on it.”

This is what you can expect after you successfully germinate your cannabis seeds in soil

2. How to Germinate Marijuana Seeds Using Paper Towels In Five Easy Steps

One of the most popular germination techniques is the paper towel method.

Here’s a list of what you’ll need for this low-budget method:

  • Feminized or autoflowering seeds
  • Dinner plate
  • Paper towels
  • Spray bottle
  • Labels
  • Heat mat (optional)

Now that you’ve gathered the necessary supplies let’s get crackin‘.

Step One

Place two to three sheets of paper towels on top of a clean dinner plate. If you decide to use a heat mat to increase the temperature, place it under the dinner plate.

Step Two

Label the dinner plate with the name of the cannabis strain of choice.

Step Three

Place up to 10-seeds per plate.

You must make sure that a minimum of 1-inch adequately separates the seeds.

Step Four

Spray water on the seeds until the paper towels are completely saturated. Once done, place a new layer of 2-3 paper towel sheets on top of the seeds. Use the spray bottle to soak the new paper towel addition.

Remember: the paper towels must always remain saturated with water. If allowed to dry, the cannabis seeds will fail to germinate.

Step Five

The germination process should occur within 24-48-hours. After 48-hours, gently peel back the upper paper towel section. If the seeds germinate, you will see cracked-open seeds with an emerging radicle.

At this point, it’s time to move the germinated seed to its new home with a pair of tweezers. This final step requires extreme care because the radicle is fragile, and if broken, the embryo within will die.

Be careful when you use the paper towel method and make sure to label each plate

3. How to Germinate Marijuana Seeds Using Rooting Cubes in Five Easy Steps

Germinating weed seeds with rooting cubes is the ideal method for beginners and professionals alike.

Overall, rooting cubes provide the ease of the paper towel method and the soil technique’s efficiency. Let’s take a look at everything you need to when germinating marijuana seeds with rooting cubes.

  • Feminized or autoflowering seeds
  • Rooting cubes
  • pH 6.0 water
  • Rooting tray
  • Labels
  • pH meter and pH up or down
  • Heat mat (optional)
Step One

First and foremost, place the rooting cubes in the rooting tray. If you decide to use a heat mat, place the tray on top.

Step Two

Next, label each rooting cube or tray with the appropriate name of each cannabis strain.

Step Three

Use a pH meter and pH solution to achieve a pH of 6.0.

The amount of water you pH depends on the number of rooting cubes. Start with one cup of water if you are germinating less than ten seeds.

Germination cubes require a pH of 6.0 because they are typically made from peat moss, rockwool, or other soilless-based mediums. Therefore, a pH of 6.0 will ensure the best possible results once the seed germinates.

Step Four

Each rooting cube is equipped with a pre-made hole.

Place one cannabis seed per hole. You may tear off a small piece of the substrate to cover the opening. Once done, saturate the rooting cube with pH 6.0 water.

You must make sure that the rooting cube never dries out. Remember, cannabis seeds must remain moist until they sprout to the surface.

Step Five

Once again, patience is the final step when you learn how to germinate cannabis seeds with rooting cubes. Overall, cannabis seeds may emerge from the rooting cube within 2-4-days. However, germination may take as long as 7-days.

There are a lot of rooting cubes to choose from, but the germination process remains the same

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How to Germinate Old Cannabis Seeds

Now that you understand how to germinate healthy cannabis seeds let’s quickly discover how to germinate old marijuana seeds.

As you become infatuated with the world of cannabis, you’ll soon begin to stack an extensive seed collection. Don’t worry; we’re all seed hoarders at heart because there are so many incredible cannabis genetics out there.

Eventually, however, you’ll notice that you have more than a few old cannabis seeds. Luckily for you — all is not lost.

Here’s our tried and true technique to give your old seeds a boost during the germination process.

Cannabis Seed Scarification

Scarring cannabis seeds is incredibly simple.

All you need is a nail file or a piece of sandpaper. Use the file or sandpaper across the surface of the seed in question. You do not need to use an immense amount of force, but instead, a few good scrapes to scar the seed’s outer shell will do.

The point of seed scarification is to allow water to penetrate the seed coating easily. By doing so, the embryo receives a jump start that initiates the germination process.

Once the seeds are scarred, you may choose one of the three above mentioned techniques to complete the germination process.

A few readily available tools to get your cannabis seed scarification done

The Best Way To Germinate Marijuana Seeds

Now that you’re done reading this guide on seed germination — which method will you choose?

The soil, paper towel, and rooting cube methods are all tried-and-true and provide excellent germination rates. Remember, cannabis seeds are an investment, and you must use the best germination method possible to ensure a healthy cannabis crop.

You have one chance to germinate each seed the right way, and by using this guide, you’ll make each seed count.

How to Germinate Weed Seeds

There are numerous phases of cannabis cultivation that must be completed before you may be greeted with copious amounts of dank buds. You won’t have a plant to harvest unless you can successfully germinate cannabis seeds.

Germination is the process through which a seed sprouts into a new plant. Often known as “popping,” germination is the first step in beginning a cannabis garden.

Picking out good quality seeds

Cannabis seeds may be obtained from a variety of places, although they are most often purchased online. Because there are so many different internet seed sellers, it’s crucial to pick one that you can trust.

Regardless of where you obtain your seeds, it is a good idea to check them carefully before planting. Seeds will germinate in the majority of cases; nevertheless, poor-quality seeds will result in a weaker plant. Unfortunately, you won’t find out until the vegetative and flowering periods are well underway.

When purchasing seeds, make sure they are ripe and have a dark brown color with lighter highlights and a firm feel. You don’t want a seed that feels fresh and seems green, as this suggests that it hasn’t fully matured. Once you’ve got your cannabis seeds, make sure you have enough room for your plants to develop and thrive.

Preparing to germinate cannabis seeds

The act of germination is important in the production of cannabis. Seed germination is the basis of every cannabis plant, and there are actions that can be performed to increase the likelihood of successful popping. Some growers, for example, increase germination attempts by soaking seeds in a compost tea for 12 hours or in a solution of 1 percent hydrogen peroxide prior to planting to eliminate any harmful bugs.

The environment in which seeds germinate has an impact on the final result. There are a variety of germination methods, however, they all require:

  • Moisture is required for the seed to swell and break free from its shell.
  • Minimal intervention to avoid accidentally breaking the fragile structures.
  • Temperatures that are similar to those of spring (between 68-72 degrees Fahrenheit).

A single root will take form in the presence of moisture before gradually growing into the cannabis plant we know and love. Seeds will begin to grow within 12-36 hours of being exposed to moisture under the correct conditions.
The length of time it takes to germinate depends on how great your germination environment is. Even the worst grower can get a seed to germinate, but it will take a few weeks and will, of course, result in a weaker plant.

How to germinate seeds in soil

The most popular and generally effective technique of germinating cannabis seeds is to plant them in the soil where they will be grown. Because the delicate root is shielded by the soil, this approach is ideal for ensuring that immature seeds have minimal disturbance. It is ideal for plants to develop in the most natural way possible.

If you’re going to utilize soil, be sure you have the proper kind. Use seed-starting or potting soil that has been lightly fertilized. It should have a pH level of around 6. This sort of soil contains spores and nutrients that aid the growth of new weed plants. At this point, don’t add any nutrients; potting soil has adequate nutrients for the first 2 weeks of the plant’s existence. If you apply any additional fertilizer, you risk nutritional overdosing and harming your seedlings.

Place the soil in a tiny pot and make a small hole in the dirt with your finger or a pencil, about half an inch deep. Place the seed in the hole and cover it with dirt. Do not handle the seed beyond this stage. Seedlings are delicate, yet they understand how to place themselves in the dirt.

The seed will have a root if it has already germinated. Place the root in a downward position. Spray water onto the soil gently using a spray bottle and place your pots beneath a fluorescent light. Seeds should be kept away from windowsills since the temperature is too fluctuating for germination. The soil temperature should be kept at 72 degrees Fahrenheit.

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Every day, keep an eye on your soil and maintain it to stay wet. You should observe small stems growing from the dirt in 4-7 days.

Move your weed sprouts to bigger pots so that roots can spread out comfortably around the time the seedling stems reach 2-4 inches in height.

Germinate seeds in water

Seeds can also be germinated by immersing them in water. It’s a little quicker than the dirt technique, but you’ll have to modify your environment variables accordingly.

The key is to not soak the seeds for too long. The seeds will usually show their tail within 24 to 48 hours, but you may leave them soaking for up to 7 days without fear.

When seeds germinate in water, they sink to the bottom once they’ve been wet. Water germination is beneficial because it ensures that the proper quantity of moisture is present for seedlings to germinate. It can help shatter open the shell, pre-spouting the plant right before your eyes if done for a brief length of time. Water germination speeds up the process by removing the need for the plant to push through the soil.

Fill a glass halfway with tap water and let it sit at room temperature for a few hours to germinate. The temperature should be between 68 and 70 degrees Fahrenheit. Do not include any nutrition. Watch for any changes after dropping 2 or 3 cannabis seeds into the water. Every other day, refill the glass with fresh water while keeping it at the same temperature.

The seeds should begin to divide after 2 to 4 days. You can plant your seeds at any time, but they must be planted after the roots are 5 millimeters long.

Germinate seeds by using paper towels

You don’t have to use paper towels; there are a few other objects around the house that will do the job just as well. You can use coffee filter papers, newspaper, or cotton wool pads as examples.

First and foremost, wet your paper towel. Make sure the paper towel is thoroughly wet before placing it onto a holding container such as a plate or Tupperware. Spread a few seeds across the paper towel. Make sure there are a few centimeters between each seed so they don’t touch.

With a zip lock bag to seal your container. This essentially creates a greenhouse-like atmosphere, allowing your seeds to grow a bit faster. Place your new mini-greenhouse somewhere that will maintain a constant temperature of approximately 68 degrees Fahrenheit while being out of direct sunshine.

You should notice your seedling growing in about a week. It’s time to move them into a dirt container when you notice this. Take your time and use the tweezers; don’t touch them with your bare hands because this might cause them to be destroyed.

Germinate with starter cubes and seedling plugs

Using specially designed starting cubes and seedling plugs is a more creative approach to grow seedlings. Cannabis germination is simple with these plugs. Simply insert the seed in the cube or plug, add water as indicated, and the seedlings are automatically provided with ideal germination conditions. This is one of the most straightforward germination procedures, with little opportunity for error.

Each cube or plug already has a hole in it where you may plant your seed. Simply place your seed in the precut hole and seal the lid with your fingers. Don’t worry, you won’t be able to screw this up. You should be fine as long as the seed gets in there.

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How Long Cannabis Seeds Germinate?

If you’re one of those people that have to have control over everything you might find yourself wondering how long cannabis seeds germinate. The long and short of it is that it usually takes 24 to 48 hours for the cannabis seeds to germinate. If they are placed somewhere moist, warm and dark, like a cupboard or in a propagator. These are ideal places for the Cannabis seeds to germinate and they will crack out of their protective shells.

So now you know how long cannabis seeds germinate, what will happen after?

After another two days, they should have a pair of leaves then continue growing for another two weeks until they begin the vegetation period. If you are concerned that the seed cover is still on the leaf or concerned about how long the cannabis seed germination will still take, just remember the more warmth and moisture (not dampness) will accelerate the process for the Cannabis seeds to germinate and within 24 to 48 hours it should be completely out of its shell.

You could also find our FAQ Submission Where To Find Cannabis Seeds? useful.

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