ChloroFileBrainstorm (Hempstar)
Hybrid variety from Dutch Passion, flowering in 9 wks. Reference data for planning a grow, not a measurement of your plant.
Catalogue data last updated 17 October 2026.
HybridType
FeminizedSeed
9 wksFlowering
Planning
Schedule and VPD targets
Vapour pressure deficit targets by stage, measured from leaf temperature rather than air temperature. The same bands ChloroFile charts against.
| Stage | When | VPD target |
|---|---|---|
| Seedling | Weeks 1-2 | 0.4 - 0.8 kPa |
| Vegetative | Until you flip | 0.8 - 1.2 kPa |
| Early flower | Flower weeks 1-3 | 1.0 - 1.5 kPa |
| Late flower | Flower weeks 4-9 | 1.2 - 1.6 kPa |
Counting from the flip, expect to harvest around week 9.
Track one of these
ChloroFile carries this whole reference offline. Pick a variety when you add a plant and it fills in the type, seed type, and flowering window, then logs what actually happened against it.