November 16, 2020

10 Best Strains to Grow In A Greenhouse!

A greenhouse is a specially built structure that allows the regulation of climate and environment. It is an excellent option for growing plants that are sensitive to the conditions. 

Greenhouses can be great for growing marijuana as they can help remove many unwanted complexities of the outdoors environment and provide a beautiful, secure place that allows you to grow your weed without any concerns of damage from the outside world. This is especially important if you live in a colder environment like Pacific Northwest, Maine, or Massachusetts. It allows predictable and calculated growth of plants. Marijuana grown in greenhouses is also known to be quite potent in effects. 

10 Best Strains to Grow in Greenhouse

The following are some strains that are showing great growth and results when grown indoors under greenhouses. You can purchase all these seeds from Crop King Seeds who is our go to partner for online cannabis seed sales worldwide. You can read our full Crop King Seeds Review here.

Blue Dream:

The Blue Dream is a potent strain that averages between 17-24% THC. It gives the user an uplifting cerebral high which motivates the users and pumps them up with positive energy. Its effects are accompanied by a relaxing body high that relieves you of the pain, giving a warm, numb feeling. This is why the blue dream is famous among people who suffer from chronic anxiety or physical ailments such as muscle spasms, physical pain, or injuries.

It has a sweet blueberry-like and sugary taste that lasts long even after smoking. However, with a plethora of effects, caution is necessary, as Blue Dream comes can worsen pre-existing conditions if abused.

The bud has dense, fluffy green nugs with amber and blue hair and deep blue hues. Its outside is coated with a fine layer of white, milky trichomes.

Growth Information:

  • Feeding: Good amount of nitrogen will make this plant happy
  • Flowering time: 8-10 weeks
  • Yield: High Yield Indoor and Greenhouse
  • Difficulty level: Easy to cultivate
  • Temperature: Ideal temperature ranges is between 65-85 degrees Fahrenheit

White Widow:

The White widow belongs to the Indica family of strains. It is an excellent option for amateurs who are new to smoking weed. It has relatively milder effects,  and it is not lethargic for the user.  It still, however, delivers the intended effects of the Indica strains quite effectively. Overall it’s considered one of the best indica strains available.

THC levels average between a staggering 20%-25%, making the white widow one of the most powerful hitters world-wide.  

Despite the dose of relaxation, this strain will leave your body with enough energy to properly perform daily tasks while enjoying the bliss that it brings for you, giving the healthy, good mood vibes. It helps people with anxiety disorders, PTSD, and chronic pain.

White Widow users describe its smell as pungent and skunky, with a taste of cinnamon mixed in with a peach or apple juice. The smell of this strain is really strong, and you might have to take some extra steps if you want to keep it under control.

Growth Information:

  • Feeding: It needs a healthy supply of nitrogen as it grows. Its nutrients formulas should contain high levels of phosphorus
  • Flowering time: 8-9 weeks
  • Yield: Low to Moderate
  • Difficulty level: Easy
  • Temperature: Mild environments with 70 to 80 degrees Fahrenheit temperatures

Amnesia Haze:

The Amnesia Haze is another potent cannabis strain that people around the world enjoy. It is ranked among the top cannabis strains out there. It has topped both the 2004 Cannabis Cup, and the 2012 Sativa Cup. It has a rich THC level of about 21%. It produces strong surges of motivation and improves the user’s productivity. Although it is potent, it does not knock the person out, making it a perfect choice for parties and social gatherings. 

It can be used as a wake-and-bake or afternoon marijuana pick, so it gives you the energy to keep moving forward. Its smoke follows a blissful sensation and unlike its name, you will not begin forgetting your stuff. Like other Sativa dominant cannabis strains, it helps in coping with anxiety and depression. The inner happiness and bliss will make your day. It also helps with physical ailments and mood disorders.

It has a pungent, earthy smell that takes up the entire room it smoked in. It has citric, lemon, and pine-like flavor. Its taste is similar to its smell but a little bit sweeter.

Its leaves are green, sage-like in color with frosty and crystalline pistils, or tiny hair.

Growth Information:

  • Feeding: Compost tea spray will help in preventing diseases as it can act as a good anti-pest agent. Its immunity can be boosted by feeding it with liquids directly.
  • Flowering time: 10-11 weeks.
  • Yield: High
  • Difficulty level: Moderate
  • Temperature: 70-85 degrees Fahrenheit is the optimal temperature needed.

Jack Herer

The Jack Herer is a Sativa dominant strain, potent cannabis strain that is famous for its medicinal usages. It is very easy to cultivate, making it a big choice for beginners. Its effect starts sealing in your body immediately, giving you energy after a little puff, so It can be the go-to weed strain that is a suitable choice for people looking for something that gives an immediate uplift. It does not make you unconscious, so it is a good choice for people who do not want to feel lethargic or overly relaxed. As it wears down, it brings feelings of bliss and pleasure. 

Its medicinal benefits often deal with psychological disorders. It is known to assist people in dealing with ailments such as PTSD, chronic stress, and ADHD. For chronic pain or nauseous feeling, taking high quantities in the get-go will be beneficial.

It has hints of piney, woodsy smell that truly connects you with nature. It reminds you of a damp, earthy aroma that you often find in forests. It has a sweet, pleasing flavor just like its aroma.

The Amnesia Haze has green leaves that are covered with orange pistils.

Growth Information:

  • Feeding: Like all other Sativa-dominant plants, this plant is vulnerable to heavy feeding. Silica-based foods will help to grow thicker stems that support the bud better.
  • Flowering time: 8-9 weeks.
  • Yield: Low to moderate
  • Difficulty level: Moderate to Hard
  • Temperature: A temperature between 75 to 80 degrees Fahrenheit is suitable for this plant

The Trainwreck

The Trainwreck is a hard hitter that is enriched with a hefty 22% THC content. The Trainwreck is known for its effects on the mind and body. Its initial effect is euphoric and uplifting and energizing, however, it is followed by an onset of tiredness. Your mind becomes relaxed and goes into an introspective state. This might make you feel sleepy as well.

It may not be the perfect smoke for people looking for some day-time stoning due to its psychedelic effects. However, if you are looking to wear-off the negativity of a stressful day and unwind some anxiety, the trainwreck is the best option for you

 It is also ranked as one of the most potent cannabis strains as well. While it does assist with mental issues, it is quite good in healing physical ailments such as chronic pain, migraines, muscle spasms, and poor appetite.

The scent of the Trainwreck can be overwhelming, occupying the room in which it is present and you as well. It has a spicy, peppery flavor that gives a slight ting. It has a pungent and woodsy impact after some time of its consumption.

The buds of the Trainwreck look strong, healthy. They are neon green in color. It is covered in sultry orange or red pistils and covered with sticky frost.

Growth Information

  • Feeding: It can be fed with rich calcium, magnesium and nitrogen feed.
  • Flowering time: 8 weeks.
  • Yield: High
  • Difficulty level: Easy
  • Temperature: 65-85 degrees Fahrenheit is the best temperature range to grow this strain.

Gorilla Glue

Gorilla glue is a mix of Chem’s Sister and Chocolate Diesel and has quickly risen in popularity among users looking for a smoke that packs a powerful punch. The smoke hits you with an instant feeling of euphoria and happiness that can quickly help you relieve the stress taken in throughout the day. Its strong, sedating effect can also help you sleep better at night.

The Gorilla glue can help in alleviating symptoms of pain, such as relieving gum ache and muscle spasms. For people suffering from some sort of nervous disorders, the Gorilla glue is not a good option, since it contains low amounts of CBD. However, its high THC contents are good news for patients who suffer from sleeplessness, loss of appetite, or Obsessive-Compulsive Disorder (OCD), etc.  

People who are suffering from chronic ache issues can benefit from the gorilla glue. Its large THC  contents, however, can be dangerous for people already having complications such as a mental illness, since its abuse can make the problem worse. Therefore, caution is advised while using the strain. Controlled usages of this strain can be quite beneficial

The flavor of The Gorilla glue is reminiscent of coffee and mocha.  However, this strain also delivers a strong punch of sour taste that you feel long after its smoke. It’s also a great compact height for closet grows.

Growth Information

  • Feeding: Potassium-silicate feed will help in strengthening this plant.
  • Flowering time: 8-9 weeks.
  • Yield: Medium
  • Difficulty level: Moderate
  • Temperature: 65-85 degrees Fahrenheit is the best temperature range to grow this strain.

Northern Lights

The Northern Lights is truly cannabis to behold. Bred by combining two powerful strains, the Thai Sativa and Afghani Indica landrace strains, the Northern lights is an Indica dominant strain having a 90-10 ratio of Indica and Sativa. It contains a good amount of THC, ranging between a whopping 15%-22%, and you will begin to feel the after-effects as soon as you hit a few blunts.

The Northern Lights is a great strain for patients tired of chronic health problems such as arthritis, pain, migraines, etc. Aside from physical ailments, if your hectic routine gives you troublesome sleep or appetite, the Northern Lights can help you improve your eating and sleeping habits by inducing sleep and munchies; a strong urge to have a meal.

It has a woody vibe, giving a pine-like smell that will remind you of the camping days in the woods. Its smell is strong and pungent and can quickly take over whatever room or space it is in. Its flavors resemble its smell too, having a piny feel once smoked. It soon begins to give a sweet, candy-like flavor as well.

Its buds are tiny and thick and appear like sugary leaves.

Growth Information:

  • Flowering time: 6-7 weeks.
  • Yield: High
  • Difficulty level: Easy
  • Temperature: 70-85 degrees Fahrenheit is the best temperature range to grow this strain.
  • Feeding: High levels of nitrogen are good for this plant.

Purple Kush

The Purple Kush does not need any introduction. Ranked as one of the best strains by High Times in 2016, this child of the Hindukush and Afghani Indicas is a pure, 100% indica that many people yearn for. It hits the smoker with s strong euphoric feeling that leaves them relaxed and sometimes even a little trippy. However, it is perfectly safe to use.

The Purple Kush is an energy house, packing a staggering 19%-25% average THC content that is not only great for recreational but also medicinal purposes. It is quite good for people who often feel nauseous. Physical ailments like chronic pain or migraine can also be treated using the Purple Kush.

It has an earthy, grapy smell with a sweet flavor. Its colors are a vibrant combination of pink and red having different shades like light and dark.

Growth Information:

  • Feeding: It requires heavy feeding to reach its full potential.
  • Flowering time: 7-8 weeks.
  • Yield: Moderate-High
  • Difficulty level: Easy
  • Temperature: Preferably mild climate, somewhere between 65-75 degrees Fahrenheit is the best temperature range.

Candy Cane

The Candy cane is a notoriously powerful Indica strain that is a cross of some well-known Indica strains like the fruity Mango, the White Widow, and the fruity Mango. It boasts a strong 15%-20% average of THC levels and is known for its strong, lasting effects on the smoker. 

As soon as the Candy cane starts to hit, the user quickly experiences a change in the pulse and eyes. After a few moments of overwhelming thoughts, the user begins to notice a relaxing feeling that releases any stress troubling the mind or body. It is also a great temporary remedy for any mental disease. It is also really good for glaucoma.

Growth Information:

  • Feeding: Make sure to protect it from pests and other diseases that can hamper its growth. 
  • Flowering time: 7 weeks.
  • Yield: Moderate
  • Difficulty level: Moderate
  • Temperature: somewhere between 65-75 degrees Fahrenheit is the best temperature range.

NYC Diesel

The NYC Diesel is a great wake-and-bake strain for Sativa lovers. Bred by Big Apple, this Sativa dominant bad-boy is a combination of Afghani and Mexican landrace strains crossed with Sour Diesel. It is quite well known not only for its medicinal properties but also the recreational effects it creates.

A good remedy for people suffering from mental ailments, the uplifting and euphoric effect of this strain counters many underwhelming emotions that tire you out during the day. You can use it during day time without losing consciousness or track of time, making it ideal for people looking for a boost in confidence to cope with the daily troubles. It also helps people with ADD/ADHD focus on their tasks better. 

Growth Information:

  • Feeding: Soil with micros and macronutrients along with a compost tea so the plant is able to take all the nutrients in.
  • Flowering time: 9-11 weeks.
  • Yield: High
  • Difficulty level: Moderate
  • Temperature: Avoiding cold or damp seasons with this strain.

Final Thoughts on Greenhouse Strains:

Growing marijuana under a greenhouse can be a great decision since it allows close inspection of the plants. The uncertainty of an outdoor environment is not only removed, but the way you build your greenhouse can also allow you to regulate the amount of sunlight or external exposure you want to provide to your weed, making it an ideal place for people looking to grow weed. 

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Jacob is the owner and lead author here at  He's been involved in the cannabis growing industry since 2012.  Based outside of Denver, Colorado, his passion involves sharing his knowledge of growing and the cannabis industry.

Jacob Hydra

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