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45-Day Autoflower Cannabis Seeds

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4 products
Northern Lights Autoflower Seeds
Beginner
THC - 18%
Indica Dominant

ILGM

Northern Lights Autoflower Seeds

From

$74.00
Granddaddy Purple Autoflower Seeds
Beginner
THC - 19%
Indica Dominant

ILGM

Granddaddy Purple Autoflower Seeds

From

$84.00
Sweet Tooth Autoflower Seeds
Beginner
THC - 18%
Indica Dominant

ILGM

Sweet Tooth Autoflower Seeds

From

$74.00
Text graphic with bold letters reading "DOUBLE SEEDS FOR FREE" in red and brown on a white background.
AK-47 Autoflower Seeds
Beginner
THC - 18%
Sativa Dominant

ILGM

AK-47 Autoflower Seeds

From

$74.00

45-day autoflower seeds for cannabis are the quickest-ending genetics found in cannabis, specially designed to provide harvests as soon as six weeks after seed upon bud. They’re excellent for cultivators who need speedy outcomes, stealth-conscious plants, or an array of crops per harvest period.

What Are 45-Day Autoflower Seeds?

45-day autoflowers are super-speed marijuana strains that auto-bloom in a matter of weeks without regard to light cycle. These usually complete in 6–7 weeks compared to 8–10 for typical autoflower cannabis seeds. These genetics were first introduced by Lowryder and later perfected by contemporary breeders, providing growers with the quickest turnaround without sacrificing quality.

What Makes 45-Day Autoflowers Unique?

These strains stand out since they encapsulate ultra-quick cycles with compact, unobtrusive growing. They're perfect for brief summers, clandestine city grows, or impatient cultivators who need results fast. Pioneers such as Lowryder created history as the first-ever true auto-flower, yet more recent strains such as Fast Buds Quick One offer more intense strength coupled with deeper flavors.

Under favorable weather conditions, multiple crops per growing season can be achieved—transforming smaller harvests into a larger total ROI. In the event that you grow outdoors but need coverage coming on fast, check out our early-finishing outdoor strains.

What Do 45-Day Autoflower Strains Taste and Smell Like?

Fast doesn’t equal tasteless. Lowryder brings earthy pine with a hint of spice, while more recent 45-day hybrids offer fruity sweetness, tropical flavors, or diesel knock. Breeders now ensure these ultra-speed strains acquire complete terpene profiles so fast harvests still carry strong aromas and flavor.

If taste happens to be your priority then visit our fruity weed strains selection.

What Effects Can You Expect From 45-Day Autoflowers?

These strains offer speedy but rewarding highs. Lowryder is relaxed and soothing—the perfect recreational use—whereas recent 45-day autos can be invigorating, inspiring, or balanced depending on their lineage.

Their THC content tends to be lower than longer-cycle strains, however new strains now reach 18–22% THC. That means growers enjoy rapid, bubbly buzzes with sufficient strength to gratify the majority of consumers.

To get faster blooming with more strength, explore our fast-flowering seeds.

Why Buy 45-Day Autoflowers From ILGM?

We choose for speed, stealth, and multi-harvest potential with the 45-day autoflowers at ILGM. Discreet U.S. shipping, a germination guarantee, and breeder-trusted genetics make our fast autos a safe investment.

Grow smarter with ILGM: harvest faster, stack multiple crops, and enjoy consistent smoke before anyone else knows.

FAQs About 45-Day Autoflower Cannabis Seeds

Do the 45-day autoflowers actually mature in just 6 weeks?

Yes. Strains such as Lowryder can harvest in around 45 days, with most finishing in about 6–7 weeks.

Are 45-day autoflowers less productive than regular strains?

Yes, per plant. But their pace allows multiple harvests per season, which can equal or even surpass typical yields overall.

Are 45-day autoflowers weaker strains than other strains?

Historically yes, but modern genetics now exceed 20% THC, proving they’re power-packed despite the speed.

Compliance Note:
Cannabis seeds are sold as souvenirs and adult novelty items. Germination of cannabis seeds remains illegal in many places. See DEA 2022 seed guidance.

Last Updated: October 2025