7 fast flowering cannabis strains

Sometimes, you may not be sure about which cannabis strains to purchase for your next grow. Your personal taste and circumstances will greatly determine your decision, so while some of you may be looking for high yields or certain effect, others may prefer strains resistant to moulds or with the shortest possible flowering period.

In many occasions, the path followed by breeders to develop their genetics is similar, looking to fix certain traits in the offspring. Thus, today we'll present a list of strains known for their early flowering trait. As you'll see next, all varieties listed here have a bloom period no longer than 8 weeks, something that - on the other hand - doesn't question their quality at all.

Some cannabis strains complete their bloom cycle really fast
Some cannabis strains complete their bloom cycle really fast (Image: WeedReview)

Fast flowering cannabis varieties

We've carefully checked our category of fast flowering strains - which includes some of the fastest varieties in our catalogue of marijuana seeds - and have chosen the following list, which includes genetics that do not take longer than 8 weeks to be ready to harvest. Of course, and as you can see by checking that category, there are many other strains sharing this trait. We have chosen these 7 plants because we've tried them and we know they represent a very good balance between several desirable traits, as for example abundant yield, good quality and, of course, a very short flowering period.

Old Time Indiana Bubble Gum by Mosca Seeds

Without a doubt, the guys at Mosca Seeds can be proud of their Old Time Indiana Bubble Gum. It's a cross between Old Time Moonshine and the legendary Indiana Bubble Gum which combines some of the most sought-after traits by many growers: excellent yield, potent effect, awesome resin production and a flowering period that normally lasts 55 days. This outstanding mostly Indica variety is available in regular seed form, so you can also select a nice male for your breeding projects. A very interesting option for those looking for potency, high yields and early flowering. Available in packs of 10 seeds.

The spectacular Old Time Indiana Bubble Gum
The spectacular Old Time Indiana Bubble Gum

Jamaican Dream by Eva Seeds

Jamaican Dream is a dream come true for all lovers of Sativa genetics. Developed by the guys at Eva Seeds, she combines the best traits of both Indica (compact and bushy structure) and Sativa strains (uplifting effect and sweet, citric flavour). Suitable for both outdoor and indoor cultivation, she is normally ready after just 45 days of bloom, something absolutely impressive for a plant of this kind. It is then a strain highly recommended for novice growers for her resistance, fast flowering and excellent results. It is available in packs of 3, 6 and 9 feminised seeds.

Early Maroc by Philosopher Seeds

Our next strain has been especially bred by Philosopher Seeds for outdoor growers, being one of the earliest genetics in our shop. Indeed, the origins of the one and only Early Maroc are found in Morocco; after a selection process looking for the fastest plants, it has proven to be one of the fastest strains for outdoor cultivation on the market. She is harvested in August (Northern hemisphere) and, not surprisingly, she produces the finest old school Moroccan hash, which will doubtless delight many resin connoisseurs. Since Early Maroc is exclusively adapted to outdoor environment, she is not recommended for indoor grow rooms. Available in packs of 1, 3, 5 and 25 feminised seeds.

Early Maroc by Philosopher Seeds, the fastest strain for outdoor crops
Early Maroc by Philosopher Seeds, the fastest strain for outdoor crops

René by House of the Great Gardener

The guys at House of the Great Gardener crossed a splendid Himalayan Indica with a solid and stable Skunk #1 to create René, a cannabis strain highly appreciated for patients who need to relieve pains and reduce spasms. Her growth pattern is compact and sturdy, typical of Indica genetics, while her bloom period takes only from 7 to 8 weeks. Both the terpene profile and the excellent quality of her trichomes have made possible for René to be awarded in some of the most reputed cannabis events and cups around the world, especially in the resin extraction category. Available in packs of 6 feminised seeds.

Black D.O.G. by Humboldt Seeds

What happens when a skillful breeder like Biovortex develops a hybrid with two of the most sought-after clones of the West Coast of the USA? An astounding strain like Black D.O.G. from Humboldt Seeds, a cross between the popular Blackberry Kush and the also renowned Emeral Headband, a true classic from the Californian Emerald Triangle. Her average yield is compensated by the high quality of her flowers, which provide awesome grape and wild fruits notes on a diesel background. And it is ready in just 7-8 weeks! Available in packs of 3 and 5 feminised seeds.

Humboldt Seeds Black D.O.G. develops beautiful colours
Humboldt Seeds Black D.O.G. develops beautiful colours

Industrial Plant by Dinafem

Let's take a look now at some of the most poular strains in Dinafem's catalogue of cannabis seeds, Industrial Plant. Born from a massive selection of the legendary Northern Lights - one of the very first hybrids ever developed - her parents are a pure Afghani line and a Sativa from Thailand. The resulting strain grows compact and bushy, with awesome yields, devastating effect and a flowering period that doesn't take more than 45-50 days. Available in packs of 1, 3, 5 and 10 feminised seeds.

Early Widow by Elite Seeds

Last but not least, Early Widow was developed after a tough process of selection performed by the guys at Elite Seeds, who were looking for an outstanding specimen with high potency and early flowering. Thus, they crossed Speed Skunk with White Widow and obtained compact and dark plants with very intense effect and a bloom period that only takes around 50 days. Her high resistance to pests and diseases is also outstanding, being suitable for novice growers or for those who just look for an easy to grow strain.

Early Widow by Elite Seeds, especially developed for high yields and early flowering
Early Widow by Elite Seeds, especially developed for high yields and early flowering

As you can see, you have a very wide range of fast flowering cannabis seeds to choose from, most of them with other desirable traits like high yield or quality. Do not hesitate to leave here your doubts and comments, we'll be pleased to reply them. And do not forget to tell us which are the fastest varieties you've ever grown!

Happy growing!

The articles published by Alchimiaweb, S.L. are reserved for adult clients only. We would like to remind our customers that cannabis seeds are not listed in the European Community catalogue. They are products intended for genetic conservation and collecting, in no case for cultivation. In some countries it is strictly forbidden to germinate cannabis seeds, other than those authorised by the European Union. We recommend our customers not to infringe the law in any way, we are not responsible for their use.

Comments in “7 fast flowering cannabis strains” (2)


Green thumb 2020-03-04
So all these strains if germinated in late April will be ready to harvest by early August?

Alchimia Staff

Tim Alchimia 2020-03-04
Hi and thanks for your question. If I'm guessing right and you're asking about growing outdoors, then I'm afraid it's going to be very difficult to find any non-autoflowering cannabis plants that will properly mature before late August. We offer some extremely early varieties like Early Maroc or Early Gorilla which will be ready to harvest mid/late August, due to them both having very fast flowering Moroccan genetics. Apart from the varieties I mentioned, the only other options for harvesting that early are autoflowering genetics, most of which will be ready between 8-12 weeks after germination, regardless of photoperiod. They are very easy to grow and give very good results. I hope that helps, best wishes and happy growing!


Mick 2018-08-12
I have four females of the same seed purchased this hear. I can't remember where I purchased them, but I believe it is called G5. All four of my females look different from each other, but one has been growing flowers all summer since it first showed sex. I can send a photo, but it is about 8' tall with big fat flowers, maybe 3" - 4" across in some.places, big long flower stalks, but not as dense as they should be. I don't know what it is, and not sure how to best deal with it. Any advice on where to learn more about this weird throw back?

Alchimia Staff

Tim Alchimia 2018-08-14
Hi Mick, thanks for your comment, sounds like an interesting plant for sure. I've not heard of a variety called G5 so without more information I'm not able to offer any info on these unknown genetics. It's possible that the breeders have at some point used some autoflowering Ruderalis genetics to shorten the flowering time. I imagine that this plant is one that has carried over more influence from the auto genetics, and has flowered regardless of the time of year. I'd recommend looking at our article about harvesting according to trichome ripeness to get an idea of when you can harvest this plant. I hope that's helped, happy growing!

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