My Weed Seed Sprouted Now What

Why Are Your Cannabis Seeds Not Germinating? Many first-time growers and inexperienced planters often experience this problem when trying to cultivate cannabis seed. They end up languishing and Why won't my cannabis seeds germinate? Why are my seedlings weak? Find out the answers to these questions, and their solutions, in our troubleshooting guide. Read our detailed guide on how to germinate marijuana seeds using the plate method & other safe ways. Start your pot-growing adventure the right way today.

Why Are Your Cannabis Seeds Not Germinating?

Many first-time growers and inexperienced planters often experience this problem when trying to cultivate cannabis seed. They end up languishing and wondering why their effort is not yielding since a cannabis seed has a pretty high germination rate (99%). However, many things might not promote the germination process.

Generally, cannabis seeds are powerful and grow pretty fast. If the seeds do not germinate, there is likely a problem with the germination method. This article will explore many things that can go wrong when trying to cultivate cannabis seeds.

Genetics

The chances of having a viable seed increase significantly if the genetics is good. This is pretty important as it can avoid wasting energy and effort trying to germinate a bad seed. When you buy good quality seeds from trusted banks, you can breathe a sigh of relief, knowing that your actions will not be wasted.

As a result, it is not a good idea to grow seeds that you stumbled on inside a cannabis bag you got. Such seeds could be infertile and may not germinate. If it eventually germinates, you might not like cannabis. Make sure to buy the right seed from reputable stores and increase the chances of germination.

Direct Soil Germination

This is one of the top reasons your cannabis seed is not germinating. If you do not water the substrate before sowing the seeds and water afterward, there is a high probability that the seeds will not grow. This is not surprising as the seeds could be buried too deep, and adding water after sowing worsens this.

You can obtain good results by germinating the seeds in jiffy pellets, peat plugs, or using kitchen paper and later transplant them to a pot or the soil when the small seedlings come out. Make sure to care for your tender plant at this stage. Limit irrigation, support the right temperature and use Northern lights when growing indoors.

Wrong Temperature and Humidity

The ideal temperature for germinating cannabis seeds is high humidity and high-temperature levels. It is essential for people in tropical countries to provide external support of heat to get the temperature within reasonable and acceptable ranges. This is where heated greenhouses come in. Not only do they provide the right temperature, but they can get the humidity level to the ideal range essential for germinations. A cannabis seed needs 70% relative humidity and an average temperature of about 270C for germination.

If the temperature and relative humidity ranges are lower than the ideal value specified, the growth rate will be slow and unsuccessful. Excessive range, on the other hand, can lead to fungal problems.

Seeds Planted too Deep.

The amount of energy available to a germinating cannabis seed is limited. As a result, if planted too deep, it might not have the required energy to make its way up. A seed planted underground will have no light and is not producing food yet since no photosynthesis. Planting seed too deep creates extra stress for the seedling as migration to the surface becomes an issue.

As a result, you should plant your cannabis seed around 2 to 3 cm down or half inches deep. With this, they have enough room to grow taproots. This might be one of the reasons your cannabis seed didn’t grow.

Using Old or Unsterilized Pots and Soils

A fungus is one of the greatest enemies that might affect the germination of cannabis seed. If you reuse soil and it is not sterilized, there is a high chance of mold and other unhealthy organisms like insects and bacteria. As a result, the seeds may not sprout at all. Even if they grow, these organisms might kill them after a couple of days. For instance, a sprouting seedling might suddenly bend and change color to brown in a process known as damping off. This is common when you supply the seed with too much water when there is poor drainage or the aeration is poor.

Due to this, consider planting seedlings in a sterilized pot as the tendency of containing harmful organisms is low. Also, make sure the containers are clean as it can reduce the tendency of fungus.

Planting lots of Seed in one Pot

Planting a lot of seed in a single container might seem like a good idea due to the ability to save cost. This is like shooting yourself in the leg, as it might lead to a wasted effort. Even if the seeds germinate, they will compete for limited space, nutrients, and water. A cannabis plant needs enough space for its root to travel down without restriction to prevent severe intermodal distance.

Limited space translates to severe competition not only for nutrients but light as well. This is not a good idea if you want to get the best from your cannabis seed. If the seed eventually germinates, they will be weak, which will affect the plants and overall output.

Cannabis Seed left underwater for a long time.

Some growers prefer to soak their cannabis seeds before planting them. This is an essential step to break the dormancy and soften the shell to prepare the seed for planting. With a softshell, the taproot will easily break the body and push its way out of the shell. Typically, the seed will be put inside a glass of water and left until it sinks before the grower plants it. However, this is not as simple as it sounds.

A cannabis seed needs to be continually breathing, and a fully submerged seed will not get the necessary air supply. This might kill the seed if left for long inside the water. Once the seed sinks, take them inside the paper towel as soon as possible.

Conclusion

There are many intricacies involved in germinating a cannabis seed. Getting it wrong with any of the systems might not make the cannabis seed grow. You can arm yourself with these essential tips to ensure that your cannabis plants germinate. Use these tips as a guide when trying to germinate your cannabis seed. Also, if your seed does not germinate, this guide can help you troubleshoot.

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Cannabis Germination Troubleshooting

Here we offer numerous tips on avoiding issues during the germination and seedling phases of your cannabis grow. If your seeds aren’t sprouting, or your seedlings are struggling to grow, you’re likely to find the reason for your problem, and its solution, in this guide!

Before you can start tending to your crop of weed plants, you have to get those sprouts out of the ground first! Germinating cannabis seeds can be quite a fiddly process, as can looking after the newly hatched weed seedlings. Find out the common issues cannabis growers face during the germination and seedling stages, and their solutions.

Common cannabis germination issues

Throughout the whole cultivation process, but especially in the earliest stages, careful and exact practice will make success much more likely. Seeds and seedlings are vulnerable and can die or become stunted easily, or even fail to germinate at all.

Below, we’ll break down each potential issue you could experience during these early stages of your grow, and what you can do to remedy the situation.

Cannabis seeds not germinating (day 0)

If your seeds aren’t germinating at all, it could be for one of the following reasons.

Poor-quality seeds

Maybe you found some seeds in a bag of weed and thought you might try growing them, or perhaps you bought them super cheap somewhere. It could even be that you got seeds from a great breeder, but they’re just duds. In any case, poor-quality seeds have a much lower chance of germinating or producing viable plants.

Solution:

Get some good seeds! This needn’t be too hard. Genuinely good-quality breeders perform rigorous germination rate and quality tests, meaning the vast majority of them should be healthy and capable of sprouting. Of course, there will always be exceptions, but buying from a good breeder or seed bank will greatly increase the chances of successful germination.

Click here to browse countless varieties of regular, feminized, and autoflowering cannabis seeds from the best banks in the world.

Handling seeds with bare hands

Hands can carry all sorts of pathogens, such as bacteria and fungal spores, that can contaminate seeds and seedlings. At this young stage, they are very susceptible to infection, so avoiding direct touch is best!

Solution:

Be hygienic! If you want to be properly sterile, wear latex gloves or use sterilised tweezers to handle your cannabis seeds. If you don’t want to do this, then at least thoroughly wash your hands prior to handling your weed seeds or seedlings.

Water quality

Depending on where you live, tap water could be full of compounds that will inhibit your seeds from germinating. Chemicals such as chlorine can be very harmful to seeds and young cannabis plants. Later in a plant’s life, tap water is a much safer bet—although it’s worth figuring out its mineral content so you can feed properly.

Solution:

Use purified or bottled water. It might seem indulgent, but they’re only young, and this is a crucial stage in their little lives, so give them what they need, and they’ll reward you later on!

Seeds not buried deep enough

If seeds aren’t buried deep enough, they won’t have enough moisture, and can dry out. Moisture is what triggers the sprout to break through the seed shell, so this is really crucial.

Solution:

Generally, it’s recommended to germinate seeds around a knuckle (0.5–1cm) deep in the soil. This is the optimum depth for them. On top of this, germinating in propagation chambers will maintain a high and correct humidity range (around 70% RH or more), increasing the moisture content and likelihood of germination.

Propagator Pro 2

Low temperatures

In nature, cannabis seeds sprout in spring, as the temperatures warm up. So if they think it’s too cold, they won’t germinate. Moreover, certain pathogens thrive in cool temperatures, so even if they do germinate, they may not fare as well.

Solution:

Keep them warm! If growing indoors, this shouldn’t be too hard. A propagation chamber situated in a comfortably warm room should do the job. Even if you intend to grow outside, you can still germinate indoors to give your marijuana seeds the best start and keep them safe from sudden cold snaps. If you want to carry out the whole process outdoors, you’ll have to hang on until you’re certain of mild nights and warmer days, otherwise you seriously risk unfortunate results.

Soil packed too tight

Tightly packing the soil over your seeds, or just burying them too deep, can be a real issue. First, a freshly “popped” seed is (unsurprisingly) not the strongest being on the planet. In fact, it’s incredible how strong new shoots actually are. But bury them too deep, and they will not have the strength to push above the earth. Moreover, they could suffer from oxygen deprivation if the soil is too compacted or they’re buried too deep, and this will stunt development entirely.

Solution:

As mentioned, bury them only a knuckle deep in the soil, and lightly brush a covering back over them and pack it down with only the lightest touch. There’s no need for the soil covering to be compact.

Underwatering

Like we said, seeds need moisture to trigger germination. If you haven’t supplied enough water, they won’t sprout.

Solution:

You don’t need to soak the soil by any means, but you want it pretty damp. If growing in a propagation chamber, you may consider misting the inside with water to promote moisture and high humidity.

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How To Germinate Marijuana Seeds: Quick Guide with Kyle Kushman

Growing weed from seeds is both rewarding and fun. Before you purchase your pack of cannabis seeds, it’s time to do your homework.

Reading this article is a great start!

Knowing how to germinate marijuana seeds is a vital first step towards a successful grow.

The biggest hurdle you’ll experience before germinating your cannabis seeds is contradictory advice. There are as many methods as there are growers!

You can germinate marijuana seeds however you want, obviously, but for the best results, and to take advantage of Homegrown’s germination guarantee, it’s vital you follow the steps laid out in this article.

Join us as we unravel the science behind germination and detail our tried and tested way to germinate weed seeds successfully.

Don’t fall at the first hurdle. Learn how to grow weed from seeds like a pro!

What is germination?

Help! What IS germination? Germination is the first stage of your plant’s growth cycle. It’s when the seed comes out of its hibernation period and starts to sprout.

Typically your bag of pot seeds won’t start germinating, known as ‘popping,’ without the presence of water.

When you’re ready to germinate the marijuana seeds, you need to kick-start their life cycle with a little drink. The seeds will then expand, the shells will break away, and a taproot will form. If all goes well!

Marijuana sprouting isn’t rocket science, but it can be easy to get wrong. Starting marijuana seeds without water is impossible, but even with water, you need to make sure they’re warm, dark and well looked-after.

What to do before germinating marijuana seeds

As you research how to germinate marijuana seeds, you’ll notice there are several things you can do BEFORE you germinate weed seeds.

The most paramount is to purchase high-quality weed seeds like those found at trusted and reputable online retailers, such as Homegrown Cannabis Co.

Another key component of growing marijuana from seed is knowing what to do with the germinated seeds. Planting marijuana seeds is the next step, but one we will cover later.

Avoid starting with marijuana seeds that are very green, pale yellow, or fully black. Your chances of a good grow will be reduced, though it’s still possible you’ll end up with a good plant.

Germinating your cannabis seeds successfully also depends on how you store the cannabis seeds. Like your cured bud, your seeds should be stored in a cool, dry and dark place.

Don’t store them in the fridge, or freezer, or in direct sunlight. Just keep it simple.

Sprouting marijuana is all about:

  • Minimal handling
  • Adequate moisture
  • Warm temperatures (70 –77°F)

Like we said, growing marijuana from seed is simple and easy. There’s no need to complicate it but you will need to monitor your progress and keep records.

Before starting marijuana seeds, start a Homegrown Diary. You can germinate weed seeds with fellow growers and track the progress of your plants from the very start.

Do you need to germinate cannabis seeds before planting?

When learning how to germinate marijuana seeds, you may be asking yourself, why bother? Why not just stick them in the soil? It’s what happens in nature, right?

This is true, but each pollinated plant drops hundreds of seeds in the hope that one will survive. You don’t want odds like that!

There’s a better way to guarantee as high a germination rate as possible. Germinating marijuana seeds ahead of planting gives you the best chance of success.

That takes of care of why you germinate, let’s now look at the BIG question: how to germinate marijuana seeds.

My preferred way to germinate weed seeds: the paper towel method

There are so many methods, which one is the best? Follow the step-by-step guide to ‘The paper towel method’ below.

It’s Homegrown’s best way to germinate cannabis seeds.

The process is simple, and you’ll need only a few household items:

  • Two plates
  • Paper towels
  • Tweezers
  • Bottled/purified water
  • Homegrown Cannabis Co. seeds

Step 1

Take two paper towels and moisten them. Remember to wring out any excess water.

Step 2

Take a few paper towels and set them on your plate. Put the others to the side for later.

Step 3

Using tweezers, place your Homegrown Cannabis Co. seeds on your paper towel. Leave around one inch in between each seed.

Step 4

Take the second paper towel and lay it over the top, being careful not to nudge your seeds out of their designated space. Add more water if you need to.

Step 5

Double-check for excess water by lifting the paper towel in one corner. If there’s any freestanding liquid, drain it! Check regularly to make sure the towels haven’t dried.

Step 6

Take your other plate and use it as a lid to cover your seeds. Place it in a warm, dry spot, like a cabinet, drawer, or the top of the fridge.

Step 7

Maintain a constant temperature of between 70 – 77°F.

Step 8

You need to check in on your pot seeds regularly. Within 24 to 120 hours, they should pop a taproot.

Step 9

Once your seeds have sprouted, they’re ready for planting.

Watch our video on how to germinate cannabis seeds for an amazing visual recap:

How long do cannabis seeds take to germinate?

Germinating marijuana seeds takes anywhere between one and five days.

Lots of things can impact the marijuana sprouting time. Germinating an old seed can take twice as long as a fresher one, for example. Or you may be trying to pop them in an environment that’s too cool or dry. Or the seeds might simply take longer – they’re a natural product and they play by their own rules.

Weed sprouting should occur within five days (120 hours). This is the only real rule you should consider. It’s very rare, but not abnormal, to have a seed pop on day 6 or 7.

Next step: how to plant weed seeds

You’re now the proud parent of seedlings! It’s time to learn how to plant a weed seed without damaging it.

Don’t panic, learning how to plant marijuana seeds is easy, and super-fun if you watch the Planting Your Seeds video I made with Nate Hammer!

What you will need for planting marijuana seeds

What do I need to begin? As with starting marijuana seeds, you’ll need to prepare a few items before you start:

  • Red solo cups (or small plant pots)
  • Scissors
  • Elastic band (one per cup/pot)
  • Plastic cup (one seed per cup/pot)
  • Plastic wrap
  • Neutral soil
  • Water
  • Germ Genie
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Note: Germ Genie was still in development when we made the video, so we used a little Vegamatrix Grow instead!

How to plant marijuana seeds step by step

Now that you have everything you need, let’s start planting your marijuana seeds!

Step 1

First, you need to prepare your cups. You’ll need one per seedling.

Pierce the bottom to add drainage holes and fill with soil.

Don’t pack the cups! The soil should be no more than half an inch from the top, fluffy, and move freely with a few taps from the bottom.

Step 2

Next, you can add some food into the neutral soil. A ¼ strength grow solution.

Germ Genie: Use 1 to 3 drops.

The additional nutes keep your seedlings super happy as they develop.

Water the soil before you plant your seedling. That way, you’ll prevent them from floating out of position.

Step 3

Once the water has drained through your soil, you’re ready to place the germinated seed into its new home. Use your fingertip to make a shallow hole around a knuckle deep.

Angle the taproot down into the center to stand straight, then gently move the soil over it.

Step 4

Make a lid over your cups with cling film, using an elastic band to keep it in place. Pierce the film a few times for air.

By doing this, you’ll create a terrarium that will keep warmth inside and stop the topsoil from drying out.

Step 5

Wait, you’re not done! Use additional lights to keep the sprouts at a constant temperature and encourage upward growth. You can use a regular house lamp or specialized equipment.

Make sure your marijuana plants have a gap of between 6 and 12 inches from the light source.

You can expect the first set of leaves to appear pretty fast—within 48 hours!

Step 6

As soon as leaves appear, remove the cling film lid.

Leave the seedlings under the light for up to two weeks more or until they’re sturdy and a few inches tall.

Step 7

Consider transplanting them to a larger pot when they’re around four inches tall. They’re 100% ready to move when the second and third set of leaves develop.

Key Takeaways about germinating cannabis seeds

What are the most important things to remember?

When learning how to germinate marijuana seeds, always follow the rules below:

  • Only use viable, high-quality seeds
  • Ensure you store and germinate your seeds in optimal conditions
  • Try not to touch them with your bare hands
  • Follow our germination guide
  • Plant them before the taproot grows longer than an inch

FAQs related to how to germinate cannabis seeds

We hope that our guide to germinating cannabis seeds has given you the confidence and know-how to get started.

If you still have questions, don’t despair!

You’ll probably find your question about how to germinate cannabis seeds right here.

Do germinating seeds need sunlight?

No, seeds in the germination phase don’t need sunlight or any type of light source. At this stage of development, sprouting marijuana seeds is all about being dark and wet, as if the seed were slightly under the soil enjoying a little rain.

What temperature do seeds need to germinate?

The optimal temperature to germinate weed seeds is between 70 and 77°F. Taking it closer to 77°F is preferred, but maintaining a consistent temperature is the real key to healthy seedlings.

How about humidity? For best results, you can aim for a relative humidity of around 70–90%.

Why won’t my seeds germinate?

Your seeds could be too old, too immature, dried out, stored incorrectly, low-quality, or you could just be out of luck! Sometimes, nature produces a dud. Attempting to germinate seeds using the wrong method can also ruin your chances.

Note: our germination guarantee applies only to seeds germinated with the above, paper-towel method.

How do you germinate seeds in one day?

Germinating cannabis seeds isn’t about speed. There’s no guarantee that even under the best conditions, your seeds will germinate within 24 hours.

That said, the quality of the seed plays a huge role in your success!

Follow our recommendations on how to buy cannabis seeds, store them appropriately, and provide the best environmental conditions to increase your chances of a super-quick pop.

What do I do after my seeds sprout?

It’s time to transplant them into your chosen potting medium. Be careful not to touch the taproot, and remember to use the above guide on how to plant a marijuana seed.

Will seeds grow if planted too deep?

Planting your seeds too deeply reduces your plant’s survival rate—A LOT! To reach the surface, they’ll have to use up more stored energy.

This energy is reserved for growing those all-important first leaves. Without it, any pot seeds that manage to reach sunlight could be weak.

How long can seedlings stay in trays?

After successfully germinating marijuana seeds, you can leave them in the tray or on the plate until their taproots have grown thick and strong. Seeds should be planted as soon as tap roots are ¼” and before they reach 1” in length.

Don’t let the taproots grow longer than an inch, or they’ll become fragile and be challenging to transplant.

Are there any other germination methods?

There are many methods to germinate weed seeds. Bear in mind the ONLY way Homegrown will replace non-germs is if you use the paper towel method.

The grinder

Growing marijuana is a hobby anyone can enjoy, no matter their level of gardening experience.

There’s a lot to learn about how to germinate marijuana seeds, never mind all the other parts of successfully growing weed!

Thankfully the germination process is easy, especially if you follow our guidelines.

We hope that you’re confident enough to get started by now, and all your worries surrounding how to grow marijuana seeds have disappeared.

The next step is to GRAB THOSE SEEDS and start your home-growing adventure.

Good luck! Remember to check out Homegrown Cannabis Co. at any point for top tips and advice.

About the Author: Kyle Kushman

Kyle Kushman is a legend in the cannabis community. He is the modern-day polymath of pot: cultivator, breeder, activist, writer, and educator. After winning no less than 13 Cannabis Cups, there’s nothing this guy doesn’t know about indoor growing – he’s been there, done it, and is still doing it to this day!