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Our Outdoor Autoflower Seeds collection features cannabis varieties that thrive in outdoor conditions and don’t rely on light cycles to flower. Perfect for UK growers who want easy-to-grow, fast-harvesting plants that perform well in variable weather.
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Looking for the perfect seed for stress-free outdoor cultivation? Weed Seed Express offers high-quality outdoor autoflowering cannabis seeds with robust genetics at the best prices. These seeds produce hard roots, vigorous plants, and high yields – perfect for breeders, growers, or anyone seeking to maximize their outdoor cannabis production without difficulty.
Thanks to their Ruderalis heritage, autoflower cannabis weed seeds are light-independent, can withstand varying climatic conditions, and have rapid growth. Other advantages include:
Autoflowering cannabis seeds are known for their fast-growing nature. In 8 - 12 weeks, these seeds transition to flower and are ready for harvest. This means you can plant multiple crops and enjoy a bountiful harvest every year!
Typically, autoflowering cultivars remain compact throughout their lifespan (between 1 - 2 ft in height). This makes them perfect for discreet outdoor growing, growers who want to do guerrilla cultivation, or those who have a small space. Despite their small size, autoflower weed seeds still produce high-quality, potent buds.
Also, autoflowers are less prone to pests and common plant diseases like mould and mildew. They can thrive in soil with low nutrients and don’t require much fertilizer to develop large buds.
Gorilla Glue Auto is our customers’ favorite, largely because of its high THC content and cheerful, high, and strong genetics. This strain combines the best of Gorilla Glue #4 and Critical Diesel auto to give a robust and resilient plant perfect for outdoor cultivation. It can thrive in a variety of climates, including temperate, Mediterranean, arid, tropical, and mountain climates. Once planted, Gorilla Glue takes about 8 - 9 weeks to flower and yields up to 120g/plant.
AK-47 Auto is another high-yielding strain popular for its herbal flavour and relaxing high. One of our customers who got this strain says it’s ‘super easy to grow, stress tolerant and smells awesome.’ We agree! AK-47 is a mix of AK-47 and the Ruderalis gene. It produces a plant that holds up well in a tough environment and delivers dense, resin-coated buds with minimal effort. This plant reaches >3ft outdoors, completes the entire lifecycle in 6 - 8 weeks, and you’ll still get up to 90g/plant!
The all-time famous Girl Scout Cookies Auto is an indica-dominant hybrid strain. It is an excellent mix of the OG Kush and Durban Poison and delivers a potent, euphoric high with relaxing effects. This strain has quickly become a favorite among cannabis enthusiasts (especially beginners) because of its easy growing conditions, compact size (at most 3ft tall), and robust yields (up to 150g/plant). For best results, use the Sea of Green (SOG) setup, add the right nutrients, and plant it in an area with sufficient airflow. You can also shop the 45-day autoflower variety at our store.
When choosing autoflowering seeds for outdoor growing:
To make the most out of your outdoor autoflower seeds, ensure you follow all the required growing conditions from the seed bank. Here’s a simple checklist:
Weed Seed Express is your one-stop shop for all quality cannabis seeds, including outdoor autoflowering strains. All our cultivars are bred to retain the best characteristics of their parent genetics to ensure robust growth, high yields, and potent effects. Our product line comprises over 200 high-quality cannabis strains for sale – and we’re still expanding! Check out all our outdoor strains now for your next grow!
We handpick our strains (with the best, stable genetic lineage) from reliable breeders to ensure consistency in plant growth, quality, and potency. We have over 200 high-quality marijuana strains listed on our website for all growers' profiles – whether you’re a beginner or an expert.
We offer a 96% germination guarantee on all our seeds. Also, we include free seeds in our 5- and 10-seed packs to increase the germination rate to 100%!
Fast and discrete shipping is our forte. Over the years, we’ve maintained a reputation for delivering orders to locations within and outside the US. Most orders are delivered within 11 days or less (domestic US orders are often quicker). You can also track your order at every step of the way with our Track and Trace shipping for guaranteed delivery.
Autoflowering and photoperiod strains differ primarily in how they flower. While the latter switches automatically from the vegetative stage to the flowering stage regardless of the light cycles, it’s best suited for outdoor cultivation because of its high resistance to climate and short lifespan. Photoperiod strains, on the other hand, require specific changes in light exposure to trigger flowering. They typically have higher yields compared to their autoflower counterparts, but their controlled growing conditions make it difficult for first-time growers.
The growth of autoflower strains outdoors depends on the strain and environmental conditions. Ideally, they’re expected to take about 8 - 12 weeks to grow from seeds to harvest when grown outdoors. Most of our strains take between 6 - 9 weeks from seed to harvest!
Yes, outdoor autos like Gorilla Glue and Girl Scout Cookies can grow easily in a very cold climate. If you’re living in these regions, ensure you opt for cold-resistant autoflower strains for successful grow and maximum yield.
The yield of an outdoor marijuana seed largely depends on the strain, soil quality, climate, and growing conditions. On average, expect between 30 - 150g/plant. This can be more if you purchase your seeds from a reputable breeder or seed bank.
Yes, like every other plant, autoflowers grown outdoors need nutrients to thrive. However, it’s not as much as photoperiod or feminised plants. While they have a short lifespan, it’s important to provide a balance of nitrogen, phosphorus, and potassium at different stages of growth. Also, be very careful of overfeeding the plant to avoid stunted growth or low yields. You can contact any of our expert breeders on how best to grow your autoflower strains outside.
For growers who want to avoid the risk of male plants and maximize their yields, feminised autoflowering seeds are the preferred option. feminised seeds ensure that the plants will be female, which is important since only female plants produce buds. Regular seeds, on the other hand, have a mix of male and female plants, and males do not produce buds.
