Autoflowering Sativa Seeds — Fast Cerebral Energy in a Manageable Plant

Autoflowering sativa seeds deliver the cerebral spark and creative energy of sativa genetics without the towering height and extended bloom times of photoperiod sativas. Harvest energising, uplifting buds in nine to eleven weeks from seed in a plant that stays under 120 cm.

All strains in this collection are bred & stabilised in-house by Royal King Genetics

49 strains available

Flowering TriggerAutomatic
Full Cycle9–11 Weeks
EffectsEnergising & Creative
Typical Height60–120 cm

Auto-Flowering Sativas catalogue at a glance

Our auto-flowering sativas collection currently holds 49 strains in active inventory with verified THC content ranging from 15% at the low end to 33% at the high end (median 20%).

Strains
49
THC range
15-33%
Median THC
20%
Auto / Photo
49/0
  • Autoflowering: 49 strains (100% of the catalogue) — finishes 8-10 weeks seed-to-harvest.
  • Sativa-dominant: 49 — cerebral effects, taller plants, Limonene-Pinene-Terpinolene profiles common.
  • Alphabetical lineup starts with: 3 Kings, Acapulco Gold, Agent Tangie — see the full grid below for filters, lab data and grower reports.

Auto-Flowering Sativas — Browse All Strains

Sativa Effects Without the Sativa Size

Full-sized photoperiod sativas can grow past three metres and take fourteen weeks or more to flower — impractical for most home cultivators. Autoflowering sativa seeds solve both problems by delivering the cerebral energy, creative stimulation, and euphoria of sativa genetics in a compact, fast-finishing format. Plants stay under 120 cm and complete the full seed-to-harvest cycle in nine to eleven weeks. Amnesia Haze Auto, Jack Herer Auto, and Sour Diesel Auto bring authentic sativa headspace to indoor growers who could never accommodate the photoperiod originals.

Frequently Asked Questions

Are autoflower sativas significantly shorter than photoperiod sativas?
Yes — dramatically so. Photoperiod sativas can exceed three metres. Auto sativa versions stay between 60 and 120 cm thanks to their ruderalis genetics. This makes sativa effects accessible to indoor growers with limited vertical space.

Not sure which strain is right for you?

Take our 60-second quiz or explore our grow guides for expert recommendations.