ChloroFileRoyal Jack Automatic
Hybrid variety from Royal Queen Seeds, flowering in 10-12 wks. Reference data for planning a grow, not a measurement of your plant.
Catalogue data last updated 17 October 2026.
Where it came from
| Lineage | Jack Herer x Ruderalis |
| Parents | Haze x Skunk |
| CBD | 0.3% |
How it grows
| Indoor yield | 691.0g/m² |
| Outdoor yield | 1144.0g/plant |
| Indoor height | 174.0cm |
| Outdoor height | 259.0cm |
| Climate | Continental |
| Grown | Indoor, Outdoor |
| Difficulty | Beginner Friendly |
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
- Energetic
- Focused
- Relaxed
Flavors
- Sweet
- Spicy
Aromas
- Herbal
- Peppery
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 4-12 | 1.2 - 1.6 kPa |
Counting from the flip, expect to harvest between week 10 and week 12.
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.
Shares a parent
Different crosses that draw on the same parent.
- Space CookiesParadise Seeds · similar effects, similar flowering time
- GelonadeTastebudz Genetics · similar effects, similar potency
- Green CrackThe Cali Connection · similar effects, similar flowering time
- Strawberry KushAnesia Seeds · similar effects, similar flowering time
Similar, finishes sooner
Close on type and character, with a shorter flowering window.
- Auto White WidowMinistry of Cannabis · similar effects, similar potency
- Titan F1 AutoRoyal Queen Seeds · similar potency, similar effects
If you liked this
No shared parentage, but they line up on type, flowering time and reported character.
- Tropical PunchG13 Labs · similar effects, similar potency
- AutoEuphoriaDutch Passion · similar effects, similar flowering time
- Tropicana Cookies AutoFast Buds · similar effects, similar flowering time
- Green-O-Matic Auto-floweringGreen House Seed Co. · similar effects, similar potency
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.