If your seeds get exposed to light or rapid changes in temperature, these conditions will trigger them to use up their nutrient stores before they ever see soil, meaning they won’t have the nutrients they need to germinate. High humidity, on the other hand, can trigger fungi to grow on your seeds.
Ideally, you want to store your seeds in a cool, dark, and dry place. Whenever possible, keep your seeds in their original packaging. At Royal Queen Seeds, we’ve specially designed our packaging to protect our seeds until you’re ready to plant them.
IDEAL CONDITIONS FOR CANNABIS SEEDS
Cannabis seeds, with their tough outer shell, seem pretty hardy. And while nature has definitely designed them to hold up to a wide variety of conditions, cannabis seeds aren’t invincible. Rapid changes in temperature and high humidity, for example, can quickly ruin a batch of seeds. Luckily, caring for your seeds is simple. Keep reading to learn how.
If, for example, you live in an area with very warm daytime temperatures and cool nights, try to protect your seeds from these changes and don’t store them outside in a shed or garage.
When you’re ready to germinate your seeds, inspect them and germinate any seeds with damage to the outer shell first. The outer shell of your seeds is designed to protect the volatile genetics inside. Seeds with cracks in the outer shell are a lot more vulnerable and shouldn’t be stored.
There are different opinions and methods about storing your seeds for a long term – in frizzer, refrigerator or room temperature.
After harvest, seeds continue to develop during drying and curing and if you pull them out fresh and quickly dried without some more dry and cure they don’t germinate very well. After harvest trim slightly and dump the buds in a humidor box for 12-14 hours for initial cure to even their humidity and prepare for slow dry. Then put them in brown bags for 2-3 days to dry a bit (usually moisture decreases significantly for that time) and then move them back to the humidor box to continue slow dry and cure for about 7-10 days.
When RH is about 63-65% inside the humidor and buds are ready for jarring, mature seeds start falling off. At this point start pulling out the seeds gently and chopping the buds on small bits. When all seeds are out, DRY THE HUMIDOR BOX VERY WELL AFTER BUDS ARE JARRED AND PUT THE SEEDS BACK. The point is seeds to dry on lower RH.
So about a month after harvest usually have 99.99% germination rate and store seeds properly tagged in plastic vials with some rice in the frizzer in air-tight containers. Make sure to remove all small bits vegetable matter and grade your seed before storing them.
SHORTLY: DON’T DRY CANNABIS SEEDS QUICKLY and don’t store them immediately after harvest.