AK-47

Environment

Given its Afghani/Kush lineage, this cultivar tends to prefer moderate temperatures — roughly in the 21–26 °C (70–79 °F) range during lights-on, with a modest lights-off drop of 4–6 °C to encourage healthy transpiration. Relative humidity is best kept around 50–60% RH through vegetative growth, then stepped down to the 40–50% range as canopy density increases in flower. Maintaining active airflow through and under the canopy is important with this type of structure; stagnant air around dense Kush-style buds is a common precursor to problems. VPD-aware growers should aim for the lower-to-mid vegetative and mid-flower VPD windows as a rough guide, adjusting to observed plant response.

Training & canopy

This genotype's indica-dominant, bushy structure responds well to low-stress training (LST) early in veg to open up lower bud sites and improve light penetration. Topping is generally suitable and tends to produce a more even, multi-cola canopy rather than a dominant central stem. A SCROG net can work effectively with this type, as the naturally compact internodal spacing fills a screen efficiently — though growers should allow adequate veg time to fill the net before flipping. Avoid overcrowding plants; the dense foliage typical of Kush-leaning hybrids benefits from periodic selective defoliation of large fan leaves blocking interior airflow.

Flowering

With flowering window unspecified, Afghani/Kush-dominant hybrids of this type typically fall in the 8–10 week photoperiod flower range, though individual phenotypes may vary. Stretch at the flip is generally moderate — expect roughly 30–60% height increase over the first 2–3 weeks of 12/12, less dramatic than a sativa-leaning cross. Weeks 1–3: pre-flower stretch and initial pistil development. Weeks 3–5: rapid bud site stacking and resin gland onset — ensure humidity is trending down by now. Weeks 5–7: calyx swelling and trichome development accelerate; buds bulk noticeably. Weeks 7–9+: late ripening and trichome maturation — monitor closely and flush or finish per your nutrient protocol. Confirm actual finish by trichome inspection rather than a fixed calendar date.

Difficulty

Afghani/Kush hybrid heritage can produce dense, resinous buds that reward attentive humidity management and are less forgiving of environmental neglect than open, airy sativa structures.