How to grow K.O. Kush
THC 19% 
Flowering 56 days 
Yield 500 g/m² 
Height 90-140cm Taste
Seb's take
Afghani, Hash Plant and Northern Lights combine in a three-way cross that lives up to its Heavyweight billing and its knockout name. Heavy Afghani heritage brings cold tolerance and the occasional flash of blue or purple, wrapped around a compact, mould-resistant frame. An eight-week flower for a genuinely heavy hitter.
Where it comes from
Heavyweight cross Afghani, Hash Plant and Northern Lights here, three heavy indica names, and the result lives up to both the Heavyweight label and the knockout in its own. Seventy per cent indica, with the Afghani heritage running deepest. That Afghani line is what lets her handle cold and harsh conditions, and occasionally paint herself blue or purple when the temperature drops. A proper heavyweight, assembled from the right stock.
Nose & flavour
The record names no specific notes, so I shall not invent them, though an Afghani and Hash Plant parentage rarely wants for a rich, hashy depth. What it does promise is colour: flashes of blue or purple in the cold. Expect something dark and resinous to look at, and let the nose reveal itself. The lineage speaks for the direction.
The high
Effects go unrecorded here, so I will keep to what the record allows: nineteen per cent THC and a seventy per cent indica lean, built on three of the heaviest indica names going. The direction hardly needs spelling out; this is the sitting-down sort. Take the pedigree as your guide and clear the evening accordingly.
Growing it
An eight-week flower, brisk for a plant this heavy, finishing at 90 to 140cm indoors, nearer 180 to 190cm in the open air. Indoors she returns up to 500 g/m²; outdoors, 650 to 800g per plant, harvested by the end of September. Compact and bushy, with good resistance to pests and mould, she is forgiving of both cold and enthusiasm. A genuinely undemanding heavy hitter.
Learn to grow her properly:
Common questions about K.O. Kush
How long does K.O. Kush take to flower?
Around 8 weeks of flowering, by the breeder's numbers.
Is K.O. Kush an autoflower or a photoperiod strain?
A feminized photoperiod strain — flowering starts when you switch the lights, so the timing is yours to control.
How tall does K.O. Kush grow?
Around 140 cm. Standard tent territory.
How strong is K.O. Kush?
The breeder lists THC around 19%. Firmly in the strong band.
