Green Crack Autoflower Seeds

Green Crack Autoflower is a feminized autoflower hybrid, 55% sativa and 45% indica, with a spicy, fruity and floral flavour led by fresh mango. It brings Green Crack, the Skunk #1 cross known as a daytime strain, onto an autoflower’s clock, so it flowers on its own instead of waiting for shorter days. Expect about 9 to 10 weeks from seed to harvest, on a plant that stays around 60–90 cm (2.0–3.0 ft).

History & lineage

Green Crack is usually traced to Skunk #1 crossed with an indica whose origin nobody has recorded (Leafly lists it as unknown); its early history is told in conflicting versions, so we don’t repeat them here. Leafly also lists it as Green Crush and Mango Crack, and notes that some people call it Cush or Green Cush because of its name. A Green Crack entered by Christopher Stine placed 3rd for US Sativa Flower at the 2015 High Times US Cannabis Cup, and Skunk #1 won the first High Times Cannabis Cup in 1988 (Cultivators’ Choice’s entry).

This autoflower is listed as Afghani × Skunk #1 × Ruderalis: Green Crack’s genetics with ruderalis added so it flowers by age, not by day length. Fast Buds, the earliest known seller of a Green Crack Auto, describes its version as a sativa/indica hybrid with some Afghan phenotypes, built from Skunk #1 descendants and ruderalis. For the photoperiod strain, we also stock Green Crack.

Aroma & flavour

Expect citrus, mango and tropical fruit with pine and an earthy edge. The taste is listed as spicy, fruity and floral with fresh mango, and an older description of the auto has tart citrus leading, with an earthy, exotic aftertaste. Leafly has no flavour reports for this autoflower; for the photoperiod Green Crack, Leafly users most often report citrus, earthy and sweet flavours, then pungent, pine and mango, and Leafly’s lab data lists myrcene as its most abundant terpene. Our cannabis terpene guide explains what myrcene and its neighbours do.

Effects, as users report them

Leafly has no user reports for this autoflower, so these are Leafly users’ reports for the photoperiod Green Crack, most common first, and an autoflower won’t always feel exactly like the photoperiod. Fast Buds describes its Green Crack Auto as energetic, invigorating and stimulating, turning focused and euphoric. Dry mouth and dry eyes are the downsides Green Crack users report most, and smaller numbers report paranoia, anxiety or dizziness. Fast Buds lists THC at up to 20%, so if you are new to cannabis, start with a small amount; effects vary with the person and the dose.

Growing Green Crack Autoflower

Green Crack Autoflower switches to flowering by itself a few weeks after it sprouts, so the light can stay the same from seed to harvest; many growers give autos 18 to 20 hours a day, and our autoflower light schedule guide explains the trade-offs. Its whole cycle is listed at 9 to 10 weeks from seed.

It is described as easy to grow from start to finish, for newer and experienced growers alike. The plants grow in a Christmas-tree shape, with many side branches around one main cola, and are listed at 60–90 cm (2.0–3.0 ft); they shouldn’t pass 100 cm (3.3 ft), so it can be grown outdoors discreetly. Expect about 350–550 g/m² (1.1–1.8 oz/ft²) indoors and 50–200 g (2–7 oz) per plant outdoors. Leafly’s grow notes for Green Crack put the best temperatures at 21 to 27 °C (70 to 80 °F) with about 50% humidity.

Fast Buds says it can take a big feed and keeps asking for more, so be ready to raise the EC of your nutrient solution as it grows. Fast Buds suggests growing it as a sea of green, with plants close together. A screen of green is possible with an auto but hard, since its fixed clock won’t let you extend veg to fill the screen; gentle low-stress training while the plant is young is the easier way to open up the canopy.

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