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cannabis seed germination problems

If you allow your seeds to germinate for too long, transplanting them safely will become difficult. The reason for this is that the longer the roots are exposed to air and light, the more likely they are to become damaged. Moreover, the longer the taproot, the higher the risk for accidental damage when transplanting.

If you’re using a hood to keep moisture in, make sure there are holes in this too. Lift the hood frequently to allow for fresh air exchange. Remove the hood as soon as your seedling has shed its shell.

To prevent spoiling your seeds, avoid unnecessary handling. Use clean gloves and some disinfected tweezers or something similar. This will greatly minimise the risk of your seeds being contaminated.


Your seeds may not sprout at all, or they may emerge from the soil but die days later. Seedlings may suddenly bend and turn brown from a disease known as “damping off”. Overwatering, poor drainage, and lack of aeration will also increase the likelihood of this.

Some growers like to germinate their seeds in a glass of water. While this method technically is viable, there is also a risk that the seeds will drown if allowed to sit for too long. After all, seeds need a good supply of oxygen to grow.

Just like food, seeds are living organisms that need to be stored properly, otherwise they’ll degrade, die, or won’t germinate. When storing your seeds, keep them away from light, extreme temperatures, and humidity. A dark cupboard with stable temperatures is fine. For long-term storage, place seeds in a sealed container and store them in the fridge.

Why are my seeds not germinating? With our germination troubleshooting guide, you can get to the bottom of why your weed seeds aren’t popping. Avoid these germination mistakes and get your grow off to a great start!

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When your autoflower weed seeds are planted directly in the soil outdoors, the weather can have a huge impact on reducing the germination rate. If the seeds are planted too early, it may be too cold for them to sprout. If the seeds are planted too late, it could be too hot. Marijuana seeds prefer a warm temperature to sprout and may not start growing if it’s below 60 degrees or above 80 degrees Fahrenheit. Some seeds may start to sprout despite the temperatures, but the germination rate will likely be far below what is expected if it is too hot or too cold for the seeds.

Seeds are Too Old

Water only when needed. If the soil starts to feel dry, go ahead and water it to ensure there is water for the seeds. Never let the soil dry out completely before watering it again. If the soil still feels moist, there is enough water for the seeds, so wait another day or two to water. Keep a close eye on this during the summer months especially to ensure the soil doesn’t completely dry out during the hottest days.

Seeds should be planted soon after they’re purchased, but many people will order seeds early and wait to plant them. Depending on how long they wait, the seeds will likely be fine. However, seeds will become less likely to grow if they are stored for years before being planted. If you find old feminized weed seeds or other random unlabelled pot seeds in an old cupboard that have been stored for a significant amount of time, the germination rate simply isn’t going to be what it would be if the seeds were planted earlier. High-quality seeds can be stored longer, but still may not sprout.

When growing outdoors, it’s easy for pests to devour the seeds. Bugs like to eat the seeds, and birds will often look through the garden and pick out any seeds they can find. Birds are often one of the biggest pests when planting seeds, even though they will be beneficial once the seeds have sprouted by eating caterpillars and bugs that might like to eat your sour deisel seeds or gelato seeds marijuana plant. Birds can destroy an entire crop of marijuana before it even gets started because they will search the area carefully and eat all of them once they know the seeds are there.

The process begins with the cracking of the seed caused by the increase in size of the embryo, which breaks through the separation of the two lobes of the shell freeing a weak primordial stem that, once in the substrate, submerges to form a tiny root that gradually grows stronger, until it is vigorous enough to lift the remains of the seed to the surface of the soil. The two half-shells that surround the seed act as a pair of solar panels, capturing solar energy, and producing chlorophyll to finally give rise to the first two-toothed leaves.

At this time of the year, when the weather begins to be kinder, you can take the seedlings outside for a few days after they have germinated so they receive sunlight and rainwater. However, a shower or a strong hailstorm, so commonly occurring during these months as well, can completely ruin them and waste all our earlier work.

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First off, make sure there is proper drainage to prevent water accumulation near the roots. To achieve this, you can add some perlite or vermiculite to the soil mixture and avoid planting the sprouted seeds too deep in the pot, since liquids build up in the deepest areas. It also helps to sterilise the tools or spray the soil with an antifungal treatment (copper, chamomile, and garlic can be used), as well as raking it and leaving it for a few days in the sun before planting if we are to grow directly outdoors.

Just like with newborn animals, newly sprouted plants are much more sensitive to external attacks than adults. So it is necessary to make efforts to protect them from any threats. And, as we are in full germination mode, it is time to devote all our care and attention to those delicate shoots that in a few months will give rise to a slender plant.

The time has finally come for the germination of your cannabis seeds. Once the embryo has emerged from its protective shell, the tiny marijuana seedlings begin to develop their first leaves and a stalk that is still weak. It is in these initial stages that they are especially sensitive: the shoots need special care to prevent damage caused by agents such as rain, air, and fungi.