Autoflower · DNA Genetics
Forbidden Fruit Auto
Forbidden Fruit Auto is the autoflowering version of DNA Genetics' indica-dominant Forbidden Fruit photoperiod line, crossing the original Cherry Pie x Tangie selection with a ruderalis bridge to lock in photoperiod-independent flowering while preserving the tropical-cherry terpene profile. The total seed-to-harvest cycle runs roughly ten to twelve weeks under an 18-to-20-hour light schedule, with plants staying compact at 60 to 100 centimeters indoors — well-suited to small tents and stealth grows where a full photoperiod cycle would be impractical. The flavor leans heavily on the Tangie side with sweet citrus and ripe cherry on the inhale and a softer indica body component contributed by Cherry Pie's genetics. The high is firmly indica-dominant with relaxed, euphoric, slightly sedative effects that don't approach the heaviness of pure-indica autos. DNA's autoflower work has been steadier than most major banks at preserving photoperiod terpene profiles in the auto conversions, and Forbidden Fruit Auto is one of the better fruit-leaning autos in the modern catalogue.
Reviewed 2026-05-23· Sources: seedfinder.eu, DNA Genetics catalogue
Potency
- THC range
- 17–22%
- Typical THC
- 20%
- CBD
- up to 0.3%
Flowering
- Indoor weeks
- 10–12 wk
- Difficulty
- Easy
- Climate
- temperate, Mediterranean, indoor
Yield & size
- Indoor
- 375-475 g/m²
- Outdoor
- 100-200 g/plant
- Height
- 60-100 cm
Indica / sativa ratio
Terpene profile
The aromatic compounds below shape how Forbidden Fruit Auto smells, tastes, and ultimately feels in the body.
- dominant
Limonene
Uplifting citrus — typically associated with mood elevation and stress relief.
- secondary
Myrcene
Sedating, musky, herbal — commonly linked to couch-lock effects.
- secondary
Caryophyllene
Peppery and spicy — the only terpene that binds CB2 receptors, studied for anti-inflammatory action.
- minor
Linalool
Floral and lavender-like — calming, often noted for sleep and anxiety support.
Reported side effects
Lineage
Forbidden Fruit Auto traces to Forbidden Fruit × ruderalis. The cross sits in the Cherry Pie x Tangie x ruderalis family, which influences both the terpene profile and the flowering structure described above.
Genetic family tree
Documented parents and grandparents for Forbidden Fruit Auto based on breeder catalogues. Library entries are clickable; ancestors not yet documented on this site appear in a lighter, non-linked box.
Grow profile
Grow profile
- Indica / sativa
- 70% / 30%
- Flowering days
- 70–84 days
- Stretch
- Low
- Pest resistance
- High
- Mold resistance
- High
- Training methods
- lst
Feed schedule for Forbidden Fruit Auto
These EC and NPK targets are starting points calibrated for the strain's Hybrid lean and easy difficulty rating — not gospel. Drop 15-20% off any EC ceiling on your first run and let the plant tell you where it actually wants to feed.
Suggested feed schedule
- Late veg
- 1.0-1.2 EC
- Early flower
- 1.1-1.3 EC, NPK 2-2-4
- Mid flower
- 1.4-1.6 EC, NPK 1-3-5
- Late flower
- 1.2-1.4 EC
- Final week
- Plain pH-balanced water for the last 5-7 days.
Full breakdown of feed math, runoff testing, and salt buildup in our nutrient guide.
What to expect through the grow cycle
Forbidden Fruit Auto is documented with a 11-week flower split across the standard hybrid phases. The visual below maps a documented 15-week cycle built from 4weeks of vegetative growth and the strain's published flowering window.
Published grow reports for Forbidden Fruit Auto concentrate the most observational notes on the mid-to-late flower transition. This timeline is descriptive — it reflects what reports document, not a how-to. Actual week-to-week behaviour varies with phenotype, light intensity, pot size, and environment.
Phase details
- Veg (weeks 1-4)
- The documented vegetative period for Forbidden Fruit Auto. Plants establish root structure, leaf canopy, and node count before flower triggering, with a easy difficulty rating shaping how forgiving the early canopy work tends to be.
- Stretch (weeks 5-8)
- Forbidden Fruit Auto is documented as having low stretch. Reports describe the plant roughly doubling in height during this phase as the hybrid structure establishes its final flowering frame.
- Bud sites (weeks 9-10)
- Pre-flowers form at the nodes and calyxes begin to develop. Grow reports for Forbidden Fruit Autonote this as the window where the canopy's eventual bud distribution becomes visible.
- Bud development (weeks 11-13)
- Flowers thicken and calyxes fatten through this phase. Documented Forbidden Fruit Auto runs show the bulk of visible flower mass accumulating here, with resin production accelerating toward the end.
- Ripening (week 14)
- Trichomes transition from clear toward cloudy and amber. Reports for Forbidden Fruit Auto describe the Limonene-led terpene profile maturing through this window, with aroma sharpening week over week.
- Final (week 15)
- Calyx swelling is documented as complete and the harvest window opens. Published Forbidden Fruit Auto runs end here, within the 10-12 week flowering range reported by the breeder.
Flavor & aroma
Reported effects
Common questions about Forbidden Fruit Auto
How is the auto version different from photoperiod Forbidden Fruit?
Total cycle time is roughly ten to twelve weeks from seed under 18-to-20-hour light, compared to a full vegetative period plus eight to nine weeks of flowering on the photoperiod version. Yields per plant are lower but per-square-meter throughput can be higher with multiple staggered runs per year.
Why use 18-to-20-hour light for autoflowers?
Autoflowers don't require a photoperiod shift to trigger flowering, but the extra hours of daily light maximize vegetative photosynthesis throughout the cycle. Some growers go to 24-hour light, but 18-to-20 preserves plant rest cycles and uses less electricity for marginal yield differences.
Breeder of record
DNA Genetics
View breeder profile and other strains →
More from DNA Genetics
Strains similar to Forbidden Fruit Auto
These picks lean on the same terpene profile and parent genetics as Forbidden Fruit Auto — shared dominant terps, overlapping lineage, and matching indica/sativa lean. No star ratings or popularity contests, just overlap on the traits that actually drive a similar grow and smoke.
