Once cannabis seeds are mature, the female plant begins to die, and seeds are either dropped to the ground where they grow into new cannabis plants next spring, or the seeds are harvested for processing into seed oil or food products, or stored so they can be sown in the ground later and become the next generation of plants.
Pros and cons of using cannabis seeds
If you’re ready for a more serious approach, make sure you have the space for a proper garden and pop the seeds to see what fruit they bear.
Time to germinate
Take four sheets of paper towels and soak them with distilled water. The towels should be soaked but shouldn’t have excess water running off.
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.
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.
So now you know how long cannabis seeds germinate, what will happen after?
You could also find our FAQ Submission Where To Find Cannabis Seeds? useful.
Secondly, use distilled water or a reverse osmosis system for the best results. This ensures your water is free of contaminants and other particles that may cause issues with germination or weaker plants later in the growth cycle. Many regions have fluoride and chlorine in the tap water, both of which can be damaging to delicate seedlings.
Ignoring the environmental factors listed above, germination rate is most influenced by how long the seed has been dormant. The seeds with the highest germination rate will be those planted within a year of being harvested from the mother plant. This is because they are newer seeds, and are more viable.
Further, if using a Grobo Start alongside a Grobo Solid or Premium, you can expect to have an additional harvest per year as it speeds up the process.
For indoor plants like flowers and herbs, many follow the usual 7 to 10 day germination period, but it’s well worth researching the exact species you’re growing to inform yourself of the exact length of time, as well as any specific temperature or water requirements your seed might need to thrive.
Good Tips For Germination
With Grobo, seed germination is simple. The Grobo Start is our newest product, designed to be the perfect seed starter. All you need to do it fill the water tank, place your seed in the peat pods, and wait for your seed to pop. The Grobo Start even comes with humidity domes to ensure the best environment for your precious seeds.
However, this is not always the case. Depending on the species, seeds can stay viable for quite some time. A date palm seed that was around 2000 years old germinated several years ago, making it the oldest seed to germinate. It was stored in hot dry conditions, shocking it was able to germinate!
As well as water, temperature affects seed germination. In a natural outdoor environment with the changing seasons, the temperature will indicate to the seed that it’s the right time of year to grow. If your temperature is too low, your seed will stay dormant. While if the temperature is too high, your seed will suffer from heat stress or seed aging – both of which can cause weaker plants in the long run even if germination is successful. For most plants, springtime temperatures are usually what to aim for in germination stages (22-24ºC or 68-72ºF).
All seeds will naturally seek out water. Water triggers germination, and is arguably the most important factor. All seeds require water to germinate. Water helps the seeds expand and break their shells, particularly if seeds are dry from being dormant for some time. Usually, damp environments are what seeds thrive in. If they have too much water, they’ll get waterlogged which stops them from receiving enough oxygen. However, if seeds are too dry, they won’t get the levels of water they need to sprout the tap root.
If you’re growing something else entirely, the length of time to germinate can fluctuate a lot further than the time frames above, from less than a week all the way up to an entire month. While all seeds have the same three basic needs to germinate successfully, the amounts of water and temperature may vary.