10 Best Weed Strains To Grow In Ontario (2023 Update)

Ontario's climate, characterized by warm summers and cold winters, offers a suitable environment for growing cannabis during the frost-free months.

The extended daylight hours during summer provide ample sunlight, while the region's rich soil and moderate rainfall contribute to favorable conditions for cannabis cultivation.

Taking this into consideration, here are 10 of the best strains to grow in Ontario.

Best strains to grow in Northern Ontario

1. Hindu Kush

Hindu Kush is a pure Indica landrace strain originating from the mountain range between Afghanistan and Pakistan, offering deep relaxation and an exotic flavor profile.

Growing in Northern Ontario

Ontario's diverse climate makes it an ideal location for growing Hindu Kush.

This strain is highly adaptable and can flourish in various environments, whether indoors, outdoors, or in a greenhouse.

The resilience of Hindu Kush allows it to withstand harsher conditions, making it suitable for growers of all skill levels.

To achieve the best results, it is recommended to grow Hindu Kush in organic soil and apply SOG, ScrOG, or other high-intensity training methods to maximize yield.

Smell, Taste, and Effect

Hindu Kush's aroma is a delightful combination of sweet citrus, earthy pine, and subtle incense notes, thanks to the dominant Limonene terpene.

The flavor profile consists of a fresh, earthy taste with hints of spice, citrus, and exotic sandalwood.

The effects of Hindu Kush are profoundly relaxing, focusing primarily on the body.

Within 30 minutes of consumption, users will experience a calming wave of relaxation that spreads through every joint and muscle.

The strain also induces a sense of profound peace, making it ideal for medical patients seeking relief from chronic pain and other long-term illnesses.

2. Purple Urkle

Purple Urkle, a stunning purple cannabis strain with a sweet berry flavor, traces its origins back to the Emerald Triangle in Humboldt County, Northern California.

This Indica-dominant hybrid is perfect for those looking to unwind and relax while enjoying its beautiful appearance and potent effects.

Growing in Northern Ontario

Purple Urkle is well-suited for growing in Ontario due to its resistance to mold and pests, making it a reliable choice for growers in this region.

This strain thrives in a temperate or sunny climate, but given Ontario's colder and more humid environment, it is recommended to grow Purple Urkle in a greenhouse or indoors.

Despite its slower growth rate, Purple Urkle compensates by sprinting through the flowering phase, making it a worthwhile investment for Ontario-based cultivators.

Smell, Taste, and Effect

Purple Urkle is known for its unique and mouth-watering aroma, reminiscent of tropical fruits, sweet berries, grapes, and fruit seeds.

The taste is equally delightful, offering a sweet, fruity flavor that brings to mind a sugary glass of red wine or a refreshing grape soda.

The effects of Purple Urkle are potent and relaxing, providing a powerful body high that quickly induces a carefree and numb sensation.

This makes it an excellent choice for combating insomnia, reducing anxiety, and managing pain.

With a THC content averaging 20%, it is advised to start with small doses, especially for beginners.

Despite its sedative properties, Purple Urkle can also trigger feelings of euphoria and spark creativity, making it an ideal nighttime strain to unwind and explore new ideas.

3. Black Domina

Black Domina, a powerful and striking Indica strain, originates from a masterful blend of Ortega, Afghani, Hash Plant, and Northern Lights, making it a true connoisseur's choice for its unique appearance, taste, and effects.

Growing in Northern Ontario

Ontario's climate is perfect for cultivating Black Domina, as it thrives in warm Mediterranean-like environments. Its short flowering period of 8-9 weeks allows growers to take advantage of the region's warm summers, ensuring a bountiful harvest.

The strain's compact size, reaching only 70 cm indoors and 120 cm outdoors, makes it an ideal choice for discreet growing in Ontario's urban and suburban areas.

With a potential yield of 550 to 600 grams/m2 indoors and up to 700 grams per plant outdoors, Black Domina is a fantastic option for cultivators of all experience levels in Ontario.

Smell, Taste, and Effect

Black Domina boasts a rich and versatile aroma, featuring intense fruity berry notes and a touch of spice.

This unique strain's flavor is marked by a woody taste, with hints of pine and a recognizable earthy kush base.

Connoisseurs will appreciate the intricate balance of flavors in every puff.

When it comes to effects, Black Domina is not to be underestimated.

Its potent narcotic properties make it an excellent choice for nighttime use, providing relief from pain, insomnia, and muscle tension.

Novice users should be cautious, as the strain's strong sedative effects can lead to an overwhelming desire to sleep.

Other potential side effects include dry eyes, dry mouth, paranoia, and anxiety.

However, for those seeking deep relaxation and a good night's sleep, Black Domina is the perfect strain.

4. G13

G13, a potent Indica-dominant marijuana strain, is shrouded in mystery and rumored to have originated from a government-funded research project.

Boasting a THC content of 24%, this strain offers massive yields, excellent medicinal properties, and an enjoyable high.

Growing in Northern Ontario

G13 thrives in Ontario's climate, thanks to its ability to adapt to various growing conditions.

With warm summers and mild falls, Ontario provides the perfect environment for G13 to flourish.

This strain is manageable in size and offers generous yields, making it an ideal choice for both novice and experienced growers in the region.

Moreover, G13 is resistant to common pests and mold, further enhancing its suitability for cultivation in Ontario.

Smell, Taste, and Effect

G13 is known for its earthy, woody flavors accompanied by sweet berry undertones and a hint of skunky nuances.

The aroma of this strain is equally enchanting, with notes of lemon, berries, and pungent herbs that make it a true sensory delight.

The effects of G13 are characterized by a powerful body stone, inducing relaxation and laziness.

The Sativa properties of the strain bring about a sense of euphoria, sharpening focus and creativity before users succumb to a pleasant couch-lock state.

This strain is particularly useful for those seeking relief from chronic pain, sleep disorders, and central nervous system afflictions like multiple sclerosis.

However, those with low THC tolerance should be mindful of potential side effects like dizziness and mild paranoia.

5. Bubblegum

Bubblegum is a popular hybrid strain that has captured the hearts of cannabis enthusiasts worldwide with its unique sweet smell, fruity flavors, and manageable growth.

Growing in Northern Ontario

Bubblegum is an excellent strain to grow in Ontario, thanks to its suitability for both indoor and outdoor cultivation.

The plant thrives in moderate to dry and warm climates, which are common in the region during the summer months. Growing indoors allows for better humidity control, which is beneficial for Bubblegum's preference for a dry environment.

When growing outdoors, be sure to monitor for mold, as the dense buds can be susceptible to it.

With its relatively compact size, Bubblegum can be easily managed and trained, making it ideal for novice and experienced growers alike in Ontario.

Smell, Taste, and Effect

Bubblegum is famous for its sweet, candy-like aroma reminiscent of actual bubblegum, with delightful hints of berries and grapes.

Upon crumbling the buds, the scent intensifies, making it a true delight for those who love sweet and fruity weed varieties.

The taste of Bubblegum is just as enjoyable as its smell, offering a pleasant blend of sweetness and fruitiness that is hard to resist.

The high from this strain is well-balanced, providing an uplifting and energetic boost while simultaneously relaxing the body.

Bubblegum is perfect for daytime use, as it promotes creativity, motivation, and sociability without overwhelming the user.

Aside from its recreational uses, Bubblegum also has several reported medical benefits, such as relieving pain, reducing stress, and aiding in the treatment of anxiety and depression.

Users have also reported success in treating symptoms related to migraines, ADHD, and arthritis.

Overall, Bubblegum is a well-rounded strain with a delightful aroma and taste that offers both recreational and medical users a satisfying experience.

Best Strains To Grow In Southern Ontario

1. Tangie

Tangie, a Californian Sativa strain with Amsterdam roots, boasts an invigorating high and an unmistakable citrus aroma, thanks to its heritage from Skunk #1 and California Orange.

Growing in Northern Ontario

Tangie's versatile growing nature makes it an excellent choice for Southern Ontario's climate.

With its ability to withstand short rain spells and temperatures within the 20 °C (68 °F) to 30 °C (86 °F) range, Tangie can flourish during the temperate summers.

Harvesting typically occurs around September or October. For optimal growth, ensure that the strain is grown in nutrient-rich soil that promotes its terpene profile.

Tangie's adaptability also makes it well-suited for greenhouse growing, as long as there is ample lateral space available.

Smell, Taste, and Effect

Tangie's flavor profile is characterized by its tantalizing orange and citrus scents, reminiscent of fresh tangerines.

The Skunk #1 lineage adds a sour tang and musky undertones, creating a truly mouth-watering experience.

The strain's high THC content of up to 22% produces a long-lasting, energetic, and euphoric high that's perfect for social settings, deep conversations, and sparking creativity.

Additionally, Tangie has proven beneficial for medicinal users seeking relief from anxiety, stress, pain, insomnia, digestive issues, and fatigue.

The side effects are generally mild and include dry mouth, dry eyes, and occasional paranoia for those with a low THC tolerance.

2.  White Widow

White Widow, a Dutch classic with powerful genetics, has been captivating cannabis enthusiasts since the 90s with its potent effects and remarkable yields.

Originating in Holland, this hybrid strain is a favorite among both recreational and medical users.

Growing in Southern Ontario

Southern Ontario offers a conducive environment for growing White Widow, with its warm summers and temperate climate.

This strain thrives in slightly warmer temperatures, making it an ideal choice for the region.

When grown outdoors, White Widow plants can reach impressive heights of up to 2 meters and produce yields as high as 700 grams per plant.

Plant your seeds in May or June, and expect a bountiful harvest come early autumn.

Its low maintenance and adaptability make it suitable for both novice and experienced growers.

Smell, Taste, and Effect

White Widow is well-known for its sharp and present taste, accompanied by a sweet and sour aroma.

Its earthy flavor profile includes herbal notes with a hint of spiciness and subtle woodiness, making for a truly unique and enjoyable smoking experience.

When it comes to effects, White Widow delivers a fast-acting, powerful high, characterized by feelings of euphoria and enhanced creativity.

It's an excellent choice for social gatherings or spending time with friends, but be cautious with dosing, as too much can lead to a "couch lock" effect or induce sleepiness.

Medical users also report benefits in treating chronic pain and insomnia with this potent strain.

White Widow is a legendary strain that offers a well-rounded experience in terms of smell, taste, and effect, making it a must-try for any cannabis enthusiast.

3. Chemdawg

Chemdawg, a Sativa-dominant strain with mysterious origins, is renowned for its high THC content, therapeutic benefits, and excellent growth potential.

Growing in Northern Ontario

Southern Ontario's climate, characterized by warm summers and mild autumns, is well-suited for growing Chemdawg.

The strain thrives in controlled environments, making it perfect for indoor and greenhouse cultivation.

By closely monitoring humidity levels and employing methods like SOG, SCROG, or LST, growers can avoid potential mold or mildew issues that might otherwise occur.

Given the right conditions, Chemdawg can yield up to 600 grams per plant outdoors and 500 gr/m2 indoors, making it a top choice for cultivators in this region.

Smell, Taste, and Effect

Chemdawg offers a unique and unforgettable sensory experience.

Its aroma and flavor profiles feature a blend of pine, sour diesel, and citrus notes, creating a distinct taste sensation that lingers on the palate.

With THC levels reaching up to 21%, Chemdawg provides users with a deeply relaxing, yet mentally stimulating high.

The effects include a mood-lifting sensation, freeing users from stress and anxiety while also relieving physical pain.

Its sociable nature makes it an ideal choice for gatherings with friends or a night out.

However, novice users should exercise caution, as high doses can lead to side effects like paranoia, dizziness, and anxiety.

4. AK-47

Introducing AK-47, an award-winning, Sativa-dominant strain with Colombian, Mexican, Thai, and Afghan origins that has gained massive international popularity for its impressive effects and easy cultivation.

Growing in Northern Ontario

Southern Ontario's climate provides an ideal environment for growing AK-47 due to its relatively mild summers and shorter growing season.

The strain's high mold resistance ensures a successful outdoor harvest, while its medium height (80 cm to 140 cm) makes it suitable for indoor growing as well.

Even inexperienced growers will find AK-47 easy to cultivate and can expect generous yields of 450 to 550 grams per m² indoors or 600 to 800 grams per plant outdoors.

Smell, Taste, and Effect

AK-47 boasts a unique aroma profile with slightly acidic, earthy dankness, accompanied by woody and sweet fruity notes.

Some users have even detected a hint of licorice flavor.

This strain's scent is skunky and unmistakable, making it a true classic.

The effects of AK-47 are nothing short of extraordinary.

This strain provides deep relaxation coupled with a powerfully uplifting high, perfect for unwinding after a long day or engaging in creative and social activities.

Although the high is potent, it remains well-balanced and can last longer than many other strains, often leading to intense cerebral experiences and bouts of laughter.

Medicinal users appreciate AK-47 for its ability to relieve anxiety, depression, chronic pain, and stress while promoting relaxation without inducing drowsiness. It has also been known to alleviate muscle spasms and stimulate appetite.

However, inexperienced users should approach this strain with caution, as its potency can be overwhelming when consumed in high doses.

5. Blueberry CBD

Blueberry CBD, a high-CBD medicinal strain, is a cross between Blueberry F2, OG Kush CBD, and Afghan CBD, offering a sweet blueberry flavor, a relaxing effect, and easy cultivation.

Growing in Northern Ontario

Blueberry CBD is an excellent strain for growing in Southern Ontario due to its adaptability to various climates and resilience in colder temperatures.

This strain thrives outdoors and can withstand late frosts, making it suitable for the region's temperate climate.

Its compact stature, reaching a maximum height of 160 cm, is perfect for managing outdoor gardens.

Furthermore, its ability to provide good yields of up to 450 grams per plant in sunny environments makes it a popular choice for growers in Southern Ontario.

Smell, Taste, and Effect

When it comes to aroma and flavor, Blueberry CBD doesn't disappoint.

The strain offers a delightful combination of sweet, woody, and blueberry notes, with a subtle hint of pine.

The taste experience is truly enjoyable, leaving a pleasant aftertaste that lingers.

The effects of Blueberry CBD are primarily medicinal due to its high CBD content (16%) and low THC content (less than 1%).

This 16:1 CBD to THC ratio provides a mild and gentle experience that focuses on the strain's therapeutic properties.

Users can expect to feel calm, happy, and focused while stress and depressive feelings dissipate.

The relaxing effects make it an ideal choice for those seeking relief without the psychoactive impact often associated with cannabis.