Extended Bloom Phase

Extended bloom phase refers to cannabis cultivars that require longer flowering periods than standard varieties, typically 10-12+ weeks from flower initiation to full maturity. This classification encompasses both photoperiodic and autoflowering genetics bred or selected for prolonged reproductive cycles. The trait is often associated with certain landrace lineages and tropical-origin genetics, where environmental conditions historically favored slower development. Extended bloom cultivars frequently show continued resin production, secondary bud development, and terpene maturation during the extra weeks. Breeders working in this category typically select parents exhibiting this trait to develop specialty or high-complexity profiles.

Breeders intentionally maintain extended bloom genetics for specific breeding goals, including terpene complexity development, specialized cannabinoid maturation profiles, and genetic preservation of heritage lineages. Extended bloom parents are strategically crossed with faster-finishing varieties to create intermediate-duration offspring or to introduce desired traits while moderating flowering