Stretch Phase
The Stretch Phase refers to the rapid vertical growth period that occurs during early flowering in cannabis plants, typically lasting 1-3 weeks after the photoperiod shifts to 12/12 light cycles. During this phase, internodal spacing increases and plants can double or triple in height before flower development slows this growth. The extent of stretch varies significantly by genetics—some cultivars show minimal vertical extension while others exhibit pronounced elongation. Understanding stretch characteristics is essential for indoor cultivators managing canopy height and spatial constraints. Breeders working with different lineages frequently document stretch ratios to help growers predict final plant dimensions.
Stretch Phase strains
No strains tagged into Stretch Phase yet — they'll appear here as breeders submit lineage records under this family.
The Stretch Phase refers to the rapid vertical growth period that occurs during early flowering in cannabis plants, typically lasting 1-3 weeks after the photoperiod shifts to 12/12 light cycles. During this phase, internodal spacing increases and plants can double or triple in height before flower development slows this growth. The extent of stretch varies significantly by genetics—some cultivars show minimal vertical extension while others exhibit pronounced elongation. Understanding stretch characteristics is essential for indoor cultivators managing canopy height and spatial constraints. Breeders working with different lineages frequently document stretch ratios to help growers predict final plant dimensions.
Plant breeders select for either compact or vigorous stretch phenotypes depending on cultivation method and target grow space. Stretch data helps stabilize cultivar performance across growing environments and informs decisions for sea-of-green (SOG) versus larger-container setups.
Educational reference · Cultivar metadata only · No medical claims