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Best Cannabis Seeds to Grow Indoors in the UK

Nowadays, the cannabis seeds market offers a great variety of strains for different types of growers. Firstly, if you are a grower looking for fast genetics and good production, you can choose Fast Blooming. These genetics maintain the production levels and the great punch of a feminized seed.

If you don’t mind spending a little more time, you can grow feminized marijuana seeds. There is a great variety of genetics from our catalog. Secondly, feminized seeds have great power. They are unique because they concentrate a high level of THC. However, when you smoke them, you can feel a heavy sensation in your brain or body.

If speed to harvest is most important to you, you should grow autoflowering seeds. Blimburn Seeds offers excellent replacements from different growers around the world. The new generation of autoflowering is perfect, providing abundant harvests and flowers with high levels of THC.

Blimburn Seeds wants to help growers that are undecided in strain selection for their gardens with this guide to Best Cannabis Seeds to Grow Indoors in the UK. Let’s now continue with the selection process.


For example, GELATO FAST BLOOMING is one of the fastest Blimburn Seeds genetics that stands out for maintaining the aroma and punch of the original GELATO, allowing gardeners to save between 2 to 3 weeks compared to the female variety.

This version is a cross of the female GELATO with a secret hybrid that provides the fast power. First, it is necessary to say that indoor flowering only takes between 45 to 55 days. Second, this is a plant that delivers heavy yields with flowers of delicious flavors including sweet, earthy, and sour.

In other words, GELATO FAST BLOOMING is perfect. This powerful strain reaches 22% THC.



First, CHEMDOG #4 is a feminized strain that has a special space in the hall of fame thanks to its great popularity among the users of cannabis.

Second, it is a mostly indica strain. In addition, it offers a short flowering period. In other words, in 55 to 60 days, this strain is ready for harvest. Of course, like a good indica strain, CHEMDOG #4 creates cerebral and body relaxing effects. Third, it is a plant that produces 500 gr / m2 and contains high THC values.

Finally, its flavor and citrus aromas are incredible. Its effects are ideal for body relaxation.



First, in contrast with other mostly sativa strains, CINDY 99 is one of the fastest strains, only requiring 50 to 55 days for flowering. These genetics are perfect for any gardener who wants a fast sativa strain.

Second, this strain has an amazing fruity and sweet taste. Also, this sativa delivers a great harvest of 450 to 550 gr/m2 indoors. Third, its buds produce a mental and relaxing sensation.

Finally, it is a strain that reaches 22% THC with intense and long-lasting effects. It is a cross between two classic genetics, Princess and Cinderella 88.



First, this strain is one of the fastest and most productive autoflowering varieties on the market. In general, the autoflowering seed makes small or medium plants in size and harvest.

Second, GORILLA GLUE 4 AUTO is a monster with a fast time of 8 to 9 weeks. Also, it can give you an amazing harvest of 400 to 600 gr/m2. This strain’s piney and fruity flavor is magic, especially when combined with the amazing effects of happiness, relaxation, and euphoria. Third, it is a powerful strain that reaches 24% THC.

Finally, this autoflowering strain is perfect for growing indoors. It will produce great plants with amazing flowers that deliver special effects and a delicious flavor that fly to you.



As I have said Blimburn Seeds has a great catalog of cannabis strains, including NARKOSIS, one of the fastest female varieties of the seeds bank.

First, NARKOSIS only needs 50 to 60 days for flowering. Second, this indica strain was born from a cross between Critical x Somango. It delivers a great harvest of 550 gr/m2 with buds that are hard as a rock and very fat.

Third, it is a fast flowering strain with indica dominance. From its first days of flowering, it gives off fruity, earthy, and herbal aromas.

In other words, the effect produced in your body is relaxing and happy, ideal for nighttime.

In conclusion

Every one of these strains is perfect for growing indoors in the UK. These are the best and fastest strains by Blimburn Seeds.

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