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The reproductive unit of the cannabis plant, used to grow new plants and available in feminized or regular varieties.
A cannabis seed is the reproductive unit of the cannabis plant, containing the embryonic plant and a supply of nutrients protected within a hard outer shell. Seeds are the starting point for growing cannabis, available in regular, feminized, and autoflowering varieties from hundreds of seed banks worldwide.
Types of Cannabis Seeds
Regular seeds produce both male and female plants at roughly a 50/50 ratio and are used by breeders who need male plants for pollination. Feminized seeds are bred to produce only female plants, eliminating the need to identify and remove males. Autoflowering seeds contain ruderalis genetics that cause the plant to flower based on age rather than light cycle. Each type has its place: regulars for breeding, feminized for efficient growing, and autoflowers for quick harvests and beginner-friendly cultivation.
Seed Quality and Storage
Healthy cannabis seeds are dark brown, gray, or black with a hard, intact outer shell, sometimes displaying tiger-stripe patterns. Immature seeds are pale green or white and soft, indicating they were harvested too early. Quality seeds sink in water (a common viability test), while non-viable seeds tend to float. Seeds can be stored for years in a cool, dark, dry environment, though germination rates gradually decline with age. Many growers store seeds in a refrigerator with desiccant packs to maximize longevity.