Autoflower Seeds

Reasons Growers Plant Autoflower Seeds

• No light regimen to keep track of. The plant flowers automatically. You don't need to adjust a timer, and there's less room for mistakes.
• Rapid growth process, since most varieties take between eight and ten weeks to grow after germination.
• Small plants that fit perfectly in tents, cupboards, balconies, and even small spaces in extra rooms.
• More cycles in a year, since short cycles mean outdoor growers can grow more than once during the summer.
• Genetics that are tolerant of beginner mistakes and minor errors.
• Guaranteed 90% germination rate, and seeds are replaced for free if less than 90% of your seeds germinate after following our instructions.
• Low prices year-round, so a faster harvest doesn't mean higher expenses.

Autoflower Seeds for Every Kind of Grow

Fast Finishers for Small Spaces

Small autoflowers are short and bushy, making them ideal plants for tents or even indoor corners. Because they finish fast, they also make perfect test plants for trying out a new setup.

Beginner-Friendly Classics

Beginners have grown the White Widow Auto and Gorilla Glue Auto strains for many years. These strains can handle poor watering and feeding practices better than others, making them perfect for your first grow. And if this is indeed your first grow, then we recommend looking at our beginner cannabis seeds collection.

Bold Flavor and Aroma

Autoflowers have come a long way from their earlier versions, which lacked both flavor and potency. Amnesia Haze Auto and similar strains carry a distinct citrus-and-spice terpene profile that photoperiod growers used to wait months to get.

Outdoor and Short-Season Growing

If your summer is short, an autoflowering strain helps eliminate any uncertainty you may have. It doesn't depend on shortening daylight to begin flowering, so you can start growing later and still finish before the weather turns.

What to Expect From an Autoflower Grow

Autoflowers originate partly from Cannabis ruderalis, a subspecies naturally adapted to survive in harsh northern climates with a limited growing period. Ruderalis sacrificed light-cycle sensitivity for speed, and modern breeders have bred this trait into indica and sativa genetics to preserve flavor and potency while keeping the quick cycle.

The real-life difference between an autoflower and a photoperiod plant is control. While a photoperiod strain needs you to put it through a twelve-hour light cycle to trigger its flowering phase, an autoflower just starts flowering on its own two to four weeks after germination, no matter what.

However, this speed comes with one drawback. Because the plant has a built-in timer, it doesn't have an extended vegetative period to recover from stress. If a plant is stressed early in the grow process, it stays smaller, so handle it carefully in the first two weeks.

Choosing the Right Autoflower Seeds

Think about your space and season first before deciding what strain to use. If you have a tent with limited lighting, choose a compact strain rather than a stretchy one, since it will out-yield the latter. When growing outside in a short summer, go for the fastest finishers in the collection.

After that, look at flavor and effect, since the difference in growing difficulty of the modern autoflowers is minimal. For the shortest possible cycle, compare our fast-flowering seeds. If you care about potency, our high THC seeds section contains the most potent strains we offer. If you prefer longer growing cycles for larger yields, choose feminized seeds.

Our seeds come with a 90% germination guarantee. We handpick and inspect all seeds before packing and shipping them to you.

Frequently Asked Questions

Are Autoflower Seeds Always Feminized?

Most autoflower seeds that are available commercially are feminized, bred to produce female plants and the buds those plants carry. Some autoflower seeds can produce male and female plants, but breeders buy them mostly because they need males for pollination. Every autoflower seed in this collection is feminized unless the product page says otherwise.

How Do Autoflower Seeds Work?

Autoflowers inherit their nature from Cannabis ruderalis, which flowers based on age and not the amount of light received by the plant. After the plant germinates, it takes about two to four weeks to start flowering without changing the light cycle. Total time from seed to harvest is usually eight to ten weeks, depending on strain and conditions.

Do Autoflower Seeds Have Less Potent Buds?

That reputation dates from early autoflower genetics and no longer holds. Years of breeding ruderalis speed with strong indica and sativa lines have led to strains with high enough THC content to compete with photoperiodic plants. The level of potency depends on the strain, so check the individual product page for each strain's reported range.

Can You Grow Autoflower Seeds Outdoors?

Yes, and the short growing period turns out to be an additional benefit outdoors. As flowering isn't dependent on day length, you can plant later in the season and still harvest in time. Pay attention to airflow around dense buds in humid weather, since tight flowers hold moisture, and that's where mold problems usually start. You can reach out to the team or send an email, as we offer support at every stage of the process.

How Many Times Per Year Can I Harvest Autoflowers?

Under controlled conditions indoors, an eight-to-ten-week cycle can mean multiple runs per year. Outdoors, the number of harvests depends on the climate, though many growers in a reasonable summer get two harvests, where a photoperiod plant would only allow one.

Are Special Nutrients Required for Autoflower Seeds?

There’s no need for any special nutrient, but a lighter hand helps. Being smaller and faster-growing than photoperiod plants, autoflowers require a weaker feed than the instructions on the label suggest. Start at roughly half strength and increase only if the plant asks for it.

Note: Seeds are sold as novelty collectibles for genetic preservation to adults aged 21 and over. Please review your local laws before germinating.