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Stoney Tark edited on: September 13, 2023 13 minutes read

Greenhouses come in all shapes and sizes, and are one of the best ways to help protect your Cannabis plants from insects, harsh winds, cold weather and rain. During Summer months, a greenhouse will provide the ultimate environment to allow plants to grow into healthy, vibrant and robust plants ready to flower once Winter approaches.

With the assistance of heaters, humidifiers and dehumidifiers, it is much easier to dial in your greenhouse temperature and humidity. One good thing about plating in a greenhouse is that plants will grow big and have some serious yielding potential.

We have created a list that we believe are the very best photoperiod and autoflowering cultivars to be grown outdoors in a greenhouse. Each of the strains covered in this list will be well suited for greenhouses and will perform incredibly well in hot and cold weather.

Our team has taken the time to comprise a list of the easiest to grow, low maintenance strains that are ideal for beginner growers. This list has been created for fans of photoperiod and autoflowering, to ensure your greenhouse stays packed from Summer through to Winter, allowing multiple harvests at once.

Super Silver Haze

We kick start the list with Super Silver Haze. An Amsterdam coffeeshop favorite, made by crossing Skunk, Haze and Northern Lights genetics.

The ultimate hybrid that possesses the high resilience from its parents. She is a large yielding, heavy drinking hybrid that is quick to finish despite her sativa dominance. A solid performer that only takes 70 days to flower.

An extremely tough plant that has enormous yielding potential when trained and supported. Outdoors, Super Silver Haze can produce yields of 1200 grams (42.5 oz) per plant, under the right conditions. She will need supporting after the first few weeks of flowering, and some phenotypes may grow and stretch very tall. Tying down or topping is well advised.

Her buds have an eye watering sharp citrus, spicy and floral terpene profile. The effect is a soaring, thought inducing, cerebral roller coaster.

We like to celebrate this great hybrid by giving everyone who uses this code: KUE24KCN a free pack of Super Silver Haze! The code will be active until 2023-09-13.

Skywalker OG

Skywalker OG is a dank Kush hybrid made by crossing Skywalker with OG Kush. One of the biggest yielding Kush strains around, that loves hot weather and is resilient to mold, making her a great choice for greenhouse grows.

An easy to grow cultivar that can take large amounts of nutrients, is easy to train, and packs on the pounds late in flower. Well suited for a beginner in search of big yields of absolute dank. A very tough plant that displays the best traits from both parents.

Outdoors, Skywalker OG can yield 650 grams (23 oz) per plant, in as little as 8 weeks in some cases. She may stretch quite aggressively once flowering starts, however with training the final height can easily be reduced. During flower production, the aroma may become extremely pungent.

The taste and aroma can be described as a lemon, fuel, pine and sandalwood base, with dank and earthy overtones. Effects are potent and pack a punch and a half!

Lithium OG Kush

A fast flowering, tough and very resilient Kush hybrid, that can take cold temperatures with ease. She is a very resinous cultivar that will remain medium height and stocky once flowered, making her well suited for Sea of Green setups. A great beginner grower strain, that does not need much maintenance, and can take large amounts of nutrients.

Outdoors, Lithium OG can yield up to 500 grams (17.5 oz) per plant within 8-9 weeks. There is no need to worry about mold or mildew, thanks to her high resilience. We advise topping the plants to increase the canopy size.

The aroma and taste of the buds are a blend of earthy, citrus and fuel. Her effects at first are upbeat and energetic, however over time becomes more heavy and lazy.


Another Kush hybrid that loves hot Summers and thrives during colder Winter weather. One of the most productive plants on the market for such a short flowering time, and a very easy to grow strain. Exceptional terpene profile, and a strong resistance to insects and mold.

Outdoors, Chemdog can yield up to 1000 grams (35.5 oz) dry per plant, and will need supporting during the final stages of flower due to the weight of the buds. Her terpene profile can become very loud and pungent, and we advise training the plants to easily exceed production levels.

The smell and taste is a dank, chemical, earthy profile with citrus and dank notes. Effects are instant, powerful and best suited for those with a high tolerance!

Candy Kush

She can grow very big inside a warm and humid greenhouse, and can take heat stress with ease, as well as adapt to low nighttime temperatures. Thanks to her parents, you can expect exceptionally resilient plants, that display hybrid vigor and are easy to grow. Candy Kush does not require much maintenance, and some phenotypes can flower in as little as 7 weeks.

Outdoors, yields of up to 650 grams (23 oz) per plant can be achieved, making her a wise choice for anyone who needs a fast turnaround time. She does not need much maintenance and, thanks to her high resistance and fast flowering time, making her ideal for greenhouse grows.

The aroma and taste can be described as earthy, candy sweet with fruity and floral overtones. Her effects are well balanced and not as potent as other Kushes we offer, and are ideal for creativity and high energy tasks.

Grease Monkey

She is a superb producer that is very easy to grow, ideal for beginners and heavy resin production. A quick flowering hybrid ideal for greenhouses, that will grow medium height and work great in small spaces or Sea of Green setups. She is as resistant to mold and pathogens as the Original Glue, so can be grown in humid conditions with colder temperatures.

Outdoors, Grease Monkey can yield up to 1000 grams (35.5 oz) per plant and even more with training. Some phenotypes can flower within 8 weeks, with little risk of mold.

Her aroma and taste can be described as a smooth creamy, earthy, citrus and spicy profile with solvent overtones. The effects are very potent and will hit you right between the eyes and knock you out. Perfect for evening times.

White Rhino

A cross of two old school legends, White Rhino was created by crossing White Widow and Maple Leaf Indica.

Needless to say, the result is a super resilient hybrid, that is easy to grow, and a fast finishing variety. She grows big buds that become dense with a huge central cola. Exceptionally resinous, making her ideal for hash makers, and a cultivar that loves large amounts of nutrients, hot weather and colder temperatures.

Outdoors, White Rhino can yield up to 750 grams (26.5 oz) per plant in 8-10 weeks, and requires very little maintenance. Easily one of the most robust and easy to grow hybrids on the market that will produce incredible results for even first time growers.

Her flavor and aroma is a mixture of earthy, woody with pungent Skunk overtones. When smoking, be ready for a heavy hitter that will leave you sprawled out wondering what happened.

Somango XXL Auto

A tropical tasting autoflowering hybrid created by crossing Somango XXL and autoflowering genetics.

Somango XXL Auto as the name suggests is a prolific yielding cultivar that will flower automatically during the Summer months. A large sized auto that is easy to grow, with some phenotypes finishing within 10-12 weeks from planting. She can be planted multiple times per year, and will thrive inside a warm and humid greenhouse, where plants can become large sized.

Outdoors, yields of 150 grams (5.5 oz) per plant can be harvested, making this auto a must-have for commercial growers. Once flowering starts, the plants won’t stretch much and will finish medium height and easy to maintain. She does not get affected with mold or mildew.

The aroma and flavor can be described as a tropical, earthy, spicy, fresh mango with citrus notes. Her effects are deeply relaxing, with a creative and motivated upbeat effect.

Jock Horror Auto

Jock Horror Auto was created by crossing our best female Jock Horror with autoflowering genetics.

Extremely robust and versatile hybrid that will flower in 11-13 weeks, making a great choice for hot Summers. She loves hot and humid weather, and will withstand colder nighttime temperatures with ease. A solid performer in greenhouses, and will grow medium height without needing much support or maintenance.

Outdoors, Jock Horror Auto is able to yield up to 125 grams (4.5 oz) per plant of extra sticky buds. A great choice for beginner growers, and a strong repellent of insects.

The aroma and flavor can be described as sweet, fruity, berry with gassy and fuel overtones. Effects associated will be giggly, relaxed, happy with waves of euphoria and creativity.

Original Glue Auto

We finish the list with Original Glue Auto, created by crossing Original Glue with autoflowering genetics.

A rapid flowering autoflowering hybrid that is a resin monster, and only takes as little as 56 days from seed to harvests. Very resilient and an auto that can be planted in greenhouses from Summer onwards for multiple harvests. Original Glue Auto is a large producer that may require some support, however is easy to grow and finishes in a short time frame.

Outdoors, yields of up to 90 grams (3 oz) per plant can be easily achieved. An excellent performer under all types of weather, and thanks to her resilience to mold and fast turnaround time, there is little to worry about with mold or mildew.

The flavor and aroma is a mixture of solvent, gas, chemical, earthy and glue. A very pungent variety that has a strong, potent effect that will slowly creep and wipe you out the more you smoke.

Let’s grow Nirvana strains in your greenhouse

There is nothing more rewarding than watching a plant grow from seed into a vegetative stage, then produce beautiful buds. The Summer and Winter months can be much more rewarding when growing Cannabis seeds inside a greenhouse.

As long as you take extra precautions such as using a heater during cold and frosty nights, or a dehumidifier whilst plants are flowering, it is possible to grow some amazing frosty buds, with the best flavors and aromas possible!

Stoney Tark

Stoney Tark has been involved with cannabis for over 15 years. During this time, he has become head writer for the long-standing magazine; Soft Secrets, a position he has held for the last ten years, alongside writing for every other main publication.

Author of Stoney Tark’s Top Tips on Growing Cannabis, host of The Roll Models Podcast, breeder and sponsored by SANlight LED. Stoney is well versed in many systems and methods of growing, including, Organics, Hydroponics, Breeding, and Hash production. 

Well known in the public eye for his easy-to-understand and detailed breakdowns of all things related to cannabis. 

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