Short (up to 55 days) Cannabis Seeds

What makes these strains finish so quickly indoors

Speed like this doesn't happen by accident, it's all about the genetics. A lot of these strains go back to indica landraces from places like the Hindu Kush, where the growing season's short and plants had to finish fast or not at all.

Breeders have spent years refining those quick-blooming traits, crossing early indicas with carefully chosen hybrids and sometimes adding ruderalis genes to create autoflowering versions that flower without a light change. 

Standout examples of short-flowering strains

Some strains really show off what fast flowering can do. Black Jack from Sweet Seeds is one of the quickest hybrids out there, crossing Black Domina with Jack Herer and wrapping up in under forty-five days.

That kind of speed with balanced parents is pretty impressive. Northern Lights is a proper classic here, it blends Thai and Afghani landrace genetics into a six-to-seven-week indica that's sweet, earthy, and absolutely caked in resin. Its compact shape and frosty buds have made it a classic amongst short-flowering seeds since it first appeared.

Pakistan Valley is a Hindu Kush indica that finishes in forty-five to fifty-five days, showing where a lot of these fast strains originally came from.

Pure Kush is another indica-leaning line with a forty-five-to-fifty-five-day indoor cycle. M.O.B. flowers in six to seven weeks and brings fresh East Coast aromas along with purple and pink colour, while Early Girl is a 75/25 indica-dominant hybrid that wraps up in seven to eight weeks.

Critical Kush from Barney's Farm mixes Critical Mass and OG Kush, finishing in fifty to sixty days indoors with earthy, spicy notes.

Apple Blossom is a lively hybrid of Blueberry Muffin and Dream Queen that flowers in forty-five days and smells like sweet floral apple.

Blueberry Muffin itself is an indica-dominant hybrid that finishes in forty-five days with dense, frosty purple colas and loads of resin.

Dream Queen crosses Skunk #1, Mazar Star, and Green Crack, also flowering in forty-five days, and Gazzurple offers a fifty-day turnaround.

Granny Candy is a sativa-dominant hybrid that combines Mountaintop Mint and W. Runtz Muffin, flowering in fifty-five days. Industrial Plant stays compact and bushy with a forty-five-to-fifty-day period, and Old Time Indiana Bubble Gum completed in fifty-five days.

Jamaican Dream is a balanced indica–sativa hybrid that finishes in forty-five days and brings sweet, citric flavours.

Hindu Kush wraps up in six to seven weeks with subtle wood and earth aromas, small and compact, while Honey Cream (Fast Version) flowers in six to seven weeks.

Autoflowering lines also shine in this category. Lowryder autoflowers in forty to forty-five days with a fragrant aroma that's sweet and piney, a bit like Christmas.

Red Dwarf reaches adulthood in about six weeks, one of the shortest flowering periods around, and Northern Lights Auto is a pure indica crossed with 25% ruderalis, flowering in thirty-eight to forty-five days.

Short Ryder Feminized delivers a forty-four-day finish with autoflowering speed.