Germinating your cannabis seeds is easy. You’ll need two plates, a few tissues, and some water.
1. Firstly, wet the tissues and place them on your first plate. Put the seeds on top (evenly spaced), then add a few more wet tissues on top. Drain away any excess water – you don’t want the seeds sitting in puddles!
Turn your second plate upside-down and place it on top. This ensures it’s dark and moist enough for germination to occur.
2. Put the plates in a warm place (around 21°C). Check the tissues every other day to make sure they haven’t dried out, and spray with more water if required. After a few days, you’ll hopefully see tiny roots emerging from your seeds. Some seeds might need as long as ten days to sprout.
3. Once you’ve got a few millimetres of root on display, transfer the seed to a small container filled with your preferred growing medium (rockwool, coco-fibre or soil). The seed should be placed two to five millimetres beneath the surface of your growing medium, root pointing down. Lightly cover the seed with a thin layer of the medium.
4. The seedlings usually emerge from the growing medium about one to three days after planting. Let them get used to sunlight gradually (this is especially important if you plan to move them outdoors). A windowsill is ideal; increase sun exposure by an hour or so a day.
If you’re growing the plants indoors, artificial light is fine. With HID lighting, keep seedlings a minimum of 50 to 80 cm from the bulb.
For more info on how to germinate cannabis seeds, you can check out this blog post.