How to grow BCN Sour Diesel
THC 15% 
Flowering 63 - 70 days 
Yield 500 g/m² 
Height 300-350cm Taste
Seb's take
Diesel crossed with Californian genetics, a Sativa-dominant hybrid that manages heavy yields without sacrificing flavour — a combination rarer than the name suggests among her type. Grown well both indoors and out, with a medium-to-high THC range and a vigorous, no-nonsense growth habit throughout.
Where it comes from
BCN points to Barcelona, home of Medical Seeds, and the cross itself is Diesel married to Californian genetics — a diesel line joined to West Coast stock. The interesting trick is the yield. Heavy harvests are rare among sativa-dominant plants, which tend to stretch tall and reward you thinly; this one manages genuine weight without surrendering the flavour, which is precisely what the two parent lines were selected to do.
Nose & flavour
The record keeps its cards close on the specifics, listing no formal notes, though the Diesel side of the family rarely arrives quietly — expect the sharp, fuel-edged pungency that gives the line its name. What the breeder will confirm is that flavour was a priority, and a well-rounded one, which for a sativa-dominant plant is no small thing to make good on.
The high
With no effect notes recorded, the honest guide is the make-up: seventy per cent sativa at a medium-to-high twelve to fifteen per cent THC. That points to a clear-headed, well-rounded lift rather than anything that pins you down — the daytime end of the spectrum, lively without being frantic. A sativa-leaning hybrid tends to keep you upright and talking, and there is little here to suggest otherwise.
Growing it
Give her the headroom. Indoors she reaches three to three-and-a-half metres, and outdoors, by the record's account, she grows with real vigour — this is no cupboard plant. Reckon on around two weeks of vegetation before a flowering period of nine to ten weeks, yielding in the region of 500 g/m² indoors. She takes to both settings equally, which is generous of her, but the sheer stature means the outdoor grower with vertical room to spare gets the better of the bargain.
Learn to grow her properly:
Common questions about BCN Sour Diesel
How long does BCN Sour Diesel take to flower?
Around 10 weeks of flowering, by the breeder's numbers.
Is BCN Sour Diesel 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 BCN Sour Diesel grow?
Around 350 cm. Plan your headroom before she plans it for you.
How strong is BCN Sour Diesel?
The breeder lists THC around 15%. The gentler end of the scale.
