How to grow Colombian Jack
THC 28% 
Flowering 68 - 70 days 
Yield 458 – 488 g/m² 
Height 199.9cm Taste
Seb's take
Nebula and Black Jack combine for a 70% sativa that starts with hybrid steadiness before stretching taller as it goes, backed by an award-winning 28% THC. Lime, grapefruit and citrus on the nose; the high opens creative and social, then a relaxing body note pulls it back to earth. Give her the headroom, especially outdoors.
Where it comes from
Kannabia Seeds crossed Nebula with Black Jack, landing at 70% sativa and a serious 28% THC. The result grows with classic sativa ambition, starting from a steadier hybrid frame before stretching into something taller and more expressive. An award-winning cultivar, in the record's words, and one that plainly wants space to become itself. The Black Jack side lends the backbone, the Nebula the lift.
Nose & flavour
Lime and grapefruit lead, with citrus running the length of it, a sharp, zesty profile with real brightness to it. Nothing heavy or fuel-like here; the whole nose reads clean and sour-sweet. A vivid, citrus-forward aroma that suits the sativa disposition of the plant beneath it.
The high
It opens creative and social, the sativa side doing the early talking, before a relaxing body note pulls the whole thing back to earth and keeps it, in the record's phrase, from flying completely off the map. A high with a genuine arc: up and out first, grounded second. Good company for a gathering, with a soft landing built in.
Growing it
A feminized plant at 28% THC, with a listed 0.5% CBD, so approach as you would a staircase in the dark. Flowering runs 68 to 70 days, roughly ten weeks. Height reaches around 200cm as she stretches into her sativa frame, so give her the headroom, especially outdoors where the yield potential is above average. Indoor yields come in at 458 to 488 g/m². A rewarding plant for the grower who can hand her the space and attention an award-winning sativa expects.
Learn to grow her properly:
Effects
Common questions about Colombian Jack
How long does Colombian Jack take to flower?
Around 10 weeks of flowering, by the breeder's numbers.
Is Colombian Jack 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 Colombian Jack grow?
Around 200 cm. Plan your headroom before she plans it for you.
How strong is Colombian Jack?
The breeder lists THC around 28%. Among the strongest figures in the catalogue.
