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autoflowering cannabis seeds outdoors

Then again, cannabis, including autoflowers, grows best when it can get at least 10–12 hours of sufficient sunlight. As such, it is still best to plant seeds in spring, sometime from late April to early May in Europe, as the days are already longer, which will benefit your plants’ growth. You can then harvest in late July and start another crop in early August, which will be ready in October. If you happen to live in a warm climate with no frost, you can reap up to four harvests in one single year!

If you live further north, you may want to avoid the coldest and rainiest months of the year. In these climates, you can plant your autoflowers sometime in late spring when you know there is no danger of frost. The exact time depends on where you live, and could range from April to early June. The shorter summer in a colder climate is also a factor you need to think about. You shouldn’t sow too late either, as you want to avoid flowering your weed into the rainy season. If you live somewhere with a rainy fall, it can be good to plant in early June, so you can harvest late in August. This way, you can beat the bad weather and your buds won’t fall victim to mould.


Sunlight means better yields and fatter buds
• You can achieve several harvests in a single growing season
• You can grow them outdoors at any time of year (weather depending)
• They are less susceptible to pests due to faster growth
• They fit in tiny spaces on your balcony, terrace, or garden
• They are ideal for stealthy outdoor grows/guerrilla grows due to their small size

If you don’t use a container and want to plant directly in soil instead, know that the outdoor soil at your chosen location may not be optimal. The natural soil will likely not have sufficient nutrients, and it may drain poorly and/or contain harmful microorganisms that adversely affect the growth of your plant. For these reasons, outdoor growers often first dig holes for their outdoor plants, which they fill with a suitable substrate before planting their seed.

If you grow outdoors, chances are your crops may also attract the attention of animals such as birds, cats, or deer. If you grow somewhere where cannabis-loving critters are roaming about, you may want to protect your plants with cages made from chicken wire or bamboo stakes.

Once your autoflowering cannabis plants are firmly flowering, you will notice the difference in the number of flowering sites exposed to the sun, as well as the overall size and quality of the finished flower.

Our top tip here is to locate south using a compass, and plant here. South facing will entitle you to sunlight, at least until the sun begins to set. If you are lucky enough where you can plant facing South, and receive full sun from the morning until the evening then you will produce excellent results all year.

As autoflowering strains are becoming extremely popular in Europe and the U.S, it seems for growers are trying their hand with great success using autoflowering genetics. Below are top tips when it comes to growing autos outdoors, and what to consider in order to achieve the best crop possible, all year around.

Train your plants

Our top tip here is to not overfeed your plants, as this will be reflected in the way the flower burns, tastes and the colour and consistency of the ash. It is better to grow with an N-P-K ratio that is 3-4-4 and allow the beneficial bacteria and fungi to do the rest for the plants.

The theory that the bigger the pot then the bigger the plants, certainly holds true when it comes to autoflowering genetics. You must also consider that for the first 3 weeks, the root system is being developed and in return, the vegetative growth forms. Our top tip here is to work with a pot size that is around 20 litres. This is the ideal size for autos to produce a well-established, prolific root zone without having wasted space, and growing medium.

This is one of the most important factors and will determine how much direct sunlight your plants recieve. During different times of the year depending on the season, balconies, terraces and private back gardens will be exposed to more sunlight, for longer or shorter times.

Generally autoflowering Cannabis that has been grown in a large container will usually finish around 120cm tall, however genetics can often play a key role in the final plant height.