indoor weed seeds

Top 5 Cannabis Strains for Indoor Growing

Indoors or outdoors, that is the question. Wondering which set-up to choose and which strains work best in which environment? Fear no more and read all about the benefits of growing cannabis indoors and get to know our top 5 strains for indoor growing.

There are quite a few factors to consider when choosing which strains to grow, especially if your set-up is indoors. You’ll have to compare flowering times, yields, effects and flavours, amongst other things. Growers will often land on their favourite strain after extended trial and error, and it can be an expensive process. We at Royal Queen Seeds, fortunately, have some information that can make the decision a bit easier.

We carry a wide variety of seeds, and each of them has something special to offer. Whether they’re indoor or outdoor strains or whether they’re indica, sativa or a pleasant hybrid, there’s quality across the board. However some varieties perform better than others in an indoor grow. That’s why we’ve decided to put together an updated list of the 5 best cannabis strains for growing indoors. Don’t take this as a full list of the best choices, though. In fact, we strongly encourage you to check out our website, where you can find even more gems.


You may be wondering what the benefits of growing indoors are. Does it have an impact on how the plants grow? Is it better than outdoor growing? The answer to both those questions depends on the strain you select. Some will thrive in the indoor environment, others won’t reach their full potential. Indoor growing in general has quite a few advantages over growing outdoors.

For starters, you can control the climate of your environment. When you have this power in your hands, you can optimize the temperature to match the needs of whatever strain you’re growing, which is a major advantage. Plus, you can keep on cultivating throughout the year since change of seasons will not affect your grow. Keeping with the theme of control, being in charge of the cleanliness of your growing area is a plus, since keeping your product free of germs, parasites, and other harmful intruders is an easier task indoors. Also, an indoor set-up means much more discretion. In short, if you’re living in a rough climate or prioritize cleanliness and privacy, indoor growing is for you.


The short answer to the first question is “Yes.” The slightly longer answer is, “Yes, as long as you can maintain the proper climate, lighting, etc.”

The viability of all strains outdoors is a different story, though. The main reasoning for this is down to plant sensitivity. If you live in a colder climate, many plants you’d normally be able to grow outdoors wouldn’t be able to stand the chill. Beyond climate, there’s the issue of pests. If some bugs happen to find your plants defenceless outside, they’re as good as gone. If you try to get rid of the pests with pesticides, though, the quality of your plants drops harshly.


We like to think of our Critical as the perfect all-rounder and recommend it to outdoor growers, novices, and anyone aiming for extremely high yields in a short flowering period. Indoor growers can profit from a huge production that exceeds indoor yields of 600g/m² in some cases, a strong narcotic stone due to average THC levels of 18%, and a highly stable genetic background consisting of Afghani and Skunk genetics. What makes this strain one of the best choices for an indoor grow? Well, no other variety from the Royal Queen Seeds product range is capable of yielding higher in a short flowering period of 7-8 weeks. If you’re looking for a vigorous and resilient strain that won’t cause any trouble other than confronting you with large amounts of high-quality cannabis – Critical is your choice.

Afghani x Skunk
550 – 600 g/m 2
80 – 140 cm
7 – 8 weeks
THC: 18% (aprox.) / CBD: Low
40% Sativa, 60% Indica
600 – 650 g/per plant (dried)
180 – 220 cm
Late September
Stoned, physically and mentally
Afghani x Skunk
500 – 550 g/m 2
80 – 140 cm
7 – 8 weeks
THC: 18% (aprox.) / CBD: Low
40% Sativa, 60% Indica
500 – 550 g/per plant (dried)
180 – 220 cm
Late September
Stoned, physically and mentally


It was once only available to smokers in the United States. Royal Gorilla has since crossed the pond, allowing for its amazing traits to be enjoyed by the growers and smokers in Europe. A clean split between indica & sativa, Royal Gorilla provides a wave of cerebral relaxation with an impressive 24–27% THC. This is a more complicated blend, combining Sour Dubb, Chem Sis and Chocolate Diesel. Her taste finds roots in the forest, showcasing pungent hits of earthiness and pine and it will grow beautifully away from the great outdoors. Royal Gorilla will take about 9–10 weeks to flower. But once that happens, you’ll see hefty buds with bright green leaves, with so much resin they shine in the light. The plants reach 90–160 cm and bear respectable yields of 500–550g/m². This strain produces superb quality and will definitely not disappoint.

Unsure which strains thrive indoors? Here's a list of some of the best cannabis strains for indoor growing. Click to find out more!

Indoor Seeds

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Growing cannabis indoors

Growing pot indoors shouldn’t be hard

We understand the curiosity that comes with cultivating own ganja plants is unexplainable. However, being a beginner indoor marijuana grower, you may be wondering how you will go about cultivating your plants indoors. For this reason, we have a handy grow guide that does not only cater for outdoor growers but those who wish to plant their pot indoors.

We have sub-divided the guide into chapters to make it easy for you to land your most preferred destination fast. Reading the complete guide for tips and inspiration will, nonetheless, not hurt.

Enjoy the benefits with indoor growing

While you may have in the recent past been swearing by outdoor cultivation, you may be shocked to find that you should either try out both or shift sides and settle for indoor gardening. The benefits may not be so obvious as these are more unique than most of those read on the Internet.

Firstly, you have full control to your plants, which includes, but is not limited to, easier monitoring for pests and diseases. In the long run, you will realize that among the factors that prompted us to breed indoor marijuana seeds was ensuring that the farmer gets better strains and increased yields, thanks to the more controlling nature involved in these plants.

Secondly, when it comes to flowering, indoor weed cultivation gets characterized with faster flowering times as compared to outdoor flowering. This is especially true with most of the indoor strains. Most of our seeds give rise to indoor ganja plants that flower within 8 and 10 weeks, an ultimate life-saving experience.

Thirdly, if you want a perfect balance for the asset time, then our indoor cannabis seeds should be your go-to option. We deal with a high number of indoor seeds, which is why you may have to filter through the results and settle on faster indoor flowering strains and those that flower after a long time.

What’s in your mind on indoor cannabis seeds?

You probably have the strain characteristics in your mind and would like to know a few details about their details and all characteristics. That can only be achievable if you visit our seeds table and read each strain to the entirety.

If you are contemplating saving on your precious time, we have also described every indoor strain to help you know its highlights and the cannabinoid profile that you can expect.

The easiest thing to do all this is by applying our updated feature – filters. In this case, you can filter the results and settle for the indoor seeds that suit you the best. For instance, if you need indoor cannabis seeds that give rise to strains that produce THC amounts of between 16 and 20%, then you will be sure to tick on the correspondent box, and the results will be just that – 16 – 20% THC indoor cannabis seeds.

Select your best indoor seeds today with our help

You may be having everything in place but would like to seek clarification on the best indoor cannabis seeds to choose from our category. This is totally achievable if you contact us. Our customer care representatives are awaiting your call or email and offer our unparalleled support in ensuring that you get served to the best.

Put simply, don’t hesitate to purchase your indoor marijuana seeds simply because there is a gray area, and that which you would like to seek clarification.

Save with indoor grass seeds

Do you have a Bitcoin Wallet Address and would like to buy indoor marijuana seeds using Bitcoin and save a cent or two? Then, we are here at your service. We give a whopping 10% price discount to customers who purchase their seeds using Bitcoin.

If you would also like to try different indoor cannabis under a single order, then be sure to try our combination packages like Christmas Combo Pack Feminized and Cup Winner Feminized Combo Pack.

Receive your indoor seeds hassle-freely

What is the recreational and medical marijuana situation like in your country? According to our shipping terms, we ship to nearly every other country in the world. Still, the case is different in different countries since the legality of marijuana varies from state to state.

Should it be unclear to you that we ship to your country, then be sure to reach out to us first before placing your order for an assessment. Our joy is seeing you succeeding in ganja cultivation, while also complying with the rules in your country.

You succeed in cultivating pot indoors, we succeed in availing better and more seeds, and marijuana-related products and the marijuana world becomes a better place.

Order the best indoor strains at AMS. And grow your indoor cannabis seeds into a lucrative garden! ✓Free Global Shipping ✓Discrete ✓99% Germination Rate