If grown to full maturity, in the correct conditions, cannabis seeds will generally be dark grey or brown, or striped in colour, and measure between 3-5mm in length, and 2-4mm in diameter, depending on its origins. This beautifully patterned outer shell, the perianth, plays the vital role of protecting the delicate embryo inside, and should be of a good hard nature, without cracks or chipping.
When choosing the right seeds to grow, the general rule is the bigger and darker they are the better. Different varieties of the plant produce different looking seeds. From the almost cannon-ball shape of classic Afghan seed, to the darker, more stream-lined look of some Sativa varieties, cannabis once again proves just how diverse she is!
Cannabis is an annual plant, it's life-cycle completed within a year usually, dying just after setting it's seed for the next year. To keep seed over winter months store in a cool dark, air-tight place, that stays dry. Be careful not to crush the seeds. They may look tough, but damage can easily be caused this way.
Discarding the obviously damaged, the very small, or very lightly coloured specimens, is the first step in the right direction for any budding grower, as this type of natural selection mimics exactly what nature would do.(If you purchase your seeds from Dampkring you wont need to throw any away because all our seeds are carefully screened for any defects, guaranteeing you get only the healthy viable ones to