What are 45 day autoflower seeds?
Not all autoflowers finish at the same speed. While many modern autoflower strains take around 8–10 weeks from seed to harvest, our 45 Day collection has been specifically selected for exceptionally fast flowering once buds begin to develop. These are some of the quickest autoflower genetics we’ve produced, making them an excellent choice for growers looking to reduce turnaround times without giving up the convenience of automatic flowering.
It’s important to remember that the “45 Day” name refers to the flowering period rather than the plant’s complete lifecycle. Once germination and early vegetative growth are included, most strains in this collection finish in around 65–75 days from seed, depending on growing conditions.
How long do 45 day autoflowers take to grow?
From our own growing trials, most 45 Day autoflower strains complete their full lifecycle in around 65–75 days from seed. The exact finishing time depends on the individual cultivar, growing environment, light intensity and temperature, but these genetics consistently rank among the fastest flowering plants in our collection.
For growers, that shorter lifecycle offers several advantages. Indoor growers can complete more harvests each year, while outdoor growers often benefit from finishing before colder weather or prolonged autumn rain becomes an issue.
Advantages of growing 45 day autoflower seeds
Speed is the obvious advantage, but it isn’t the only reason we’ve continued refining our 45 Day genetics. As specialist autoflower breeders, we’ve also selected for stable growth, reliable flowering, excellent resin production and straightforward cultivation. The result is a collection of autoflower strains that remain easy to grow while producing the quality, potency and consistency growers expect from modern autoflowers.
Like all autoflower strains, they also flower automatically without requiring changes to the light cycle, making them particularly suitable for beginners or anyone looking for a simpler growing experience.
Who should buy 45 day autoflower seeds?
Our 45 Day Autoflower Seeds are ideal for growers who value speed above everything else. They’re particularly popular with outdoor growers working with short summers, indoor growers looking to maximise the number of harvests each year, and beginners who want to build confidence quickly without waiting several months for their first crop.
If your priority is producing the fastest possible harvest while still enjoying modern autoflower quality, this is the collection we’d recommend starting with.
Looking for something different?
If speed isn’t your only priority, browse our complete collection of autoflower seeds to compare high THC, high yield, beginner-friendly, indica and sativa genetics bred by the Auto Seeds team since 2008.
