ChloroFileJack Herer
Sativa variety from Blackskull Seeds, flowering in 7-8 wks. Reference data for planning a grow, not a measurement of your plant.
20 breeders sell Jack Herer
Blackskull Seeds is one of them. Photoperiod versions finish anywhere from week 7 to week 12. Compare every version side by side.
Where it came from
| Lineage | Haze x Skunk |
| CBD | 0.5% |
How it grows
| Indoor yield | 462.0g/m² |
| Outdoor yield | 507.0g/plant |
| Indoor height | 137.0cm |
| Outdoor height | 275.0cm |
| Climate | Temperate |
| Grown | Indoor, Outdoor |
| Bud | High Resin |
Traits are recorded only where the catalog stated them outright.
What growers describe
Reported by catalogs and growers, not measured from a plant.
Reported effects
- Sleepy
- Relaxed
- Talkative
Flavors
- Spicy
- Berry
- Lemon
- Orange
- Pine
- Skunk
Aromas
- Earthy
- Musky
- Piney
Measured samples
Medians of public flower-lot lab results for samples sold under the name Jack Herer, from the Cannlytics Hawaii dataset (CC BY 4.0). Market samples sharing the cultivar name, not a measurement of Blackskull Seeds’s version and not a guarantee for any seed you buy.
| Total THC | 15.23% median · 13 samples |
| THCA | 16.87% median · 13 samples |
| Δ9-THC | 0.33% median · 13 samples |
| Total CBD | 0% median · 13 samples |
| CBD | 0% median · 13 samples |
| Latest test | 2020-07-17 |
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 4-8 | 1.2 - 1.6 kPa |
Counting from the flip, expect to harvest between week 7 and week 8.
Where to look next
Grouped by how each one is related to this variety rather than ranked into a single list, because those are different questions.
Crosses made from this
Varieties that name this one as a parent.
- Royal Jack (Auto)Royal Queen Seeds · similar potency, same type
- Big Devil XL AutoSweet Seeds · similar flowering time, similar potency
Shares a parent
Different crosses that draw on the same parent.
- Dream QueenHumboldt Seed Company · similar effects, same type
- MimosaBSB Genetics · similar effects, similar flowering time
- T.N.R.KC Brains · similar effects, similar potency
- Vanilla FrostingAnesia Seeds · similar effects, same type
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.