Place the cannabis seed, root first, into the hole and cover with a small amount of growing medium – just enough to block light, not enough to obstruct the seedling when it emerges.
Lastly, cover everything with the second plate, upside down, to form a ‘clam-shell’ shape – this will create the dark, moist environment necessary for germination.
New seedlings should be given access to bright light from the time they emerge. Care should be exercised in the first week or two, as seedlings are still quite delicate.
Step 3. Potting – How to germinate cannabis seeds
Place the plates somewhere warm (21ºC) and away from direct light.
When the first few millimetres of root have emerged from a germinated seed, each one should then be carefully transferred to a small container of growing medium (soil, coco-fibre or rockwool).
The best way to germinate cannabis seeds requires only two saucers or plates and some moist tissue. Here is a step by step guide.
Cannabis seedlings usually emerge from the growing medium 24 to 72 hours after the germinated seeds are planted.
It may be helpful to review this article on 10 Steps to Starting Seedling Indoors to get your seed starting area setup, and then follow the steps to pre germinate your seeds:
Step 7: Transfer sprouted seeds to growing medium. Some seeds will sprout quicker than others. As soon as a seed shows tiny roots it is ready to plant. Carefully transfer your sprouted seed to your prepared seedling containers or soil blocks. Be very careful not to damage the root. If you do, the sprout will die. If the root has grown into the paper towel, snip around it and plant paper towel and all.
How to Pre-Sprout Seeds
Step 6: Check seeds daily. Examine your seeds each day for germination and to make sure the towel stays damp. Spray the towel if needed.
I had pepper seeds that were several years old. I hated to throw the package away without checking to see if they were still good. I checked the viability of the seeds by doing a seed germination test.
Step 2: Label your containers. Use a water-resistant marker to label your containers or bags.
The next trick to germinate seeds quickly is to use stratification, which is when you expose seeds to a period of moist cold. It makes the seeds think they’re going through a period of winter. Stratification mimics nature; birds drop seeds that go through a cold period throughout winter and sprout in the spring.
Always plant seeds at a depth of 1-2 seed sizes. So, the bigger the seed, the deeper you need to plant them.
Now, keep the containers out of direct sunlight because any trapped heat might fry – literally – the seeds.
4. Try Nicking Your Seeds
Most seeds germinate the best when the soil temperature is between 68 and 86 degrees Fahrenheit. Sticking close to the 75-80 degree mark will ensure your seeds have the best chance at germination.
For outdoor planting, put the seeds in a pot, but put a thin layer of gravel over the top of the pot to prevent the soil from being washed away.
Waiting for seeds to germinate feels like it takes forever. Some seeds take up to three or four weeks to germinate. Is it possible to learn how to germinate seeds quickly?
Make sure you don’t expose to your seeds to temperatures higher than 90 degrees Fahrenheit. Those temperatures will kill the embryo inside of the seed, rendering it useless.