ChloroFileBlack Jack Auto
Sativa variety from Sweet Seeds, flowering in 9 wks. Reference data for planning a grow, not a measurement of your plant.
2 breeders sell Black Jack
Sweet Seeds is one of them. Photoperiod versions finish anywhere from week 8 to week 12. Compare every version side by side.
Where it came from
| Lineage | S.A.D. Sweet Afgani Delicious Auto x Jack Herer elite clone |
How it grows
| Indoor height | 40-110 cm |
| Grown | Indoor, Outdoor, Greenhouse |
| Bud | Dense Buds, High Resin |
| Structure | Compact |
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
- Potent
- Strong
Flavors
- Sweet
- Earthy
Aromas
- Sweet
- Earthy
- Incense
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.
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.
- Black Jack CBDSweet Seeds · similar flavour, similar flowering time
Similar, finishes sooner
Close on type and character, with a shorter flowering window.
- Royal DwarfRoyal Queen Seeds · similar flavour, same type
- Auto Silver BulletMinistry of Cannabis · same type
- AK27 Express AutoPhoenix Cannabis Seeds · same type
- Royal CBDV AutomaticRoyal Queen Seeds · same type
If you liked this
No shared parentage, but they line up on type, flowering time and reported character.
- Goo-CheNorstar Genetics · similar effects, similar flavour
- Jungle ScoutNorstar Genetics · similar effects, similar flowering time
- Bruce Banner #3Original Sensible Seeds · similar flavour, similar flowering time
- Cream Caramel AutoSweet Seeds · similar effects, similar flavour
Also close in the catalogue
From the older ranking, which puts shared parentage first and then breeder and cultivar family, without recording which of them applied.
- Jet Fuel Mandarine XL AutoSweet Seeds
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.