Highest THC Flower Available in Ontario, Canada

In order to qualify for this list a product must be currently in stock at the Ontario Cannabis Store (ocs.ca) and have consumer reviews submitted from at least 4 different batches. Though there might be some products with a higher average potency, the intention here is to highlight products that have proven to be consistent over time.

Strain AVG THC Most Recent Review OCS Price From Available Sizes
White Wedding
Msiku
Hybrid
 26.48% $13.41/g
3.5g
Indica
Houseplant
Indica
 24.85% $11.94/g
3.5g 7g
Bubba Kush
Whistler Cannabis Co
Indica
 23.84% $21.99/g
3.5g
OS.Reserve
Original Stash
Indica
 23.77% $8.49/g
14g 7g 28g
Glueberry OG
Muskoka Grown
Hybrid
 23.46% $12.84/g
3.5g
Headband
Grail
Sativa
 23.45% $13.71/g
3.5g
Limelight
Edison
Sativa
 23.28% $9.29/g
3.5g 1g 7g
Pink Kush
Canna Farms
Indica
 22.97% $14.27/g
3.5g
BC Pink Kush
Flowr
Indica
 22.93% $14.27/g
3.5g 7g
Reflect Reserve
Cove
Hybrid
 22.68% $9.56/g
3.5g 7g
Wappa
Redecan
Indica
 22.5% $7.91/g
1g 3.5g 7g 15g
Rockstar
Grail
Indica
 22.43% $13.71/g
3.5g
Pink Kush
Top Leaf
Indica
 22.22% $13.61/g
3.5g
Royal Highness
Good Supply
Hybrid
 22.01% $6.84/g
1g 3.5g 7g 28g 15g
Raider Kush
RIFF
Indica
 21.83% $8.76/g
1g 3.5g 7g
Cold Creek Kush
Vertical
Indica
 21.63% $10.84/g
1g 3.5g 7g
Strawberry Fire OG
Gage Cannabis Co
Indica
 21.3% $11.63/g
3.5g 7g
Tsunami
Hexo
Indica
 21.27% $6.50/g
3.5g 15g 30g
Cold Creek Kush
Redecan
Hybrid
 21.26% $5.99/g
1g 3.5g 7g 15g
Ruxton
Broken Coast
Hybrid
 21.26% $13.71/g
1g 3.5g 7g
Jean Guy
Good Supply
Sativa
 21.23% $5.75/g
1g 3.5g 7g 28g 15g
Subway Scientist
RIFF
Indica
 21.02% $7.96/g
1g 3.5g 7g
Go
Tokyo Smoke
Sativa
 20.82% $9.02/g
1g 3.5g 7g
Delahaze
San Rafael '71
Sativa
 20.82% $11.01/g
1g 3.5g 7g 15g
Sensi Star
7ACRES
Indica
 20.76% $8.76/g
3.5g 7g
Renew
Solei
Indica
 20.64% $7.04/g
1g 3.5g 7g
Rockstar Kush
Spinach
Indica
 20.64% $8.27/g
3.5g 7g
Sense
Solei
Hybrid
 20.63% $7.57/g
1g 3.5g 7g
Ultra Sour
Namaste
Sativa
 20.58% $9.29/g
1g 3.5g
DT81
RIFF
Sativa
 20.53% $8.76/g
1g 3.5g 7g
Jack Haze
7ACRES
Sativa
 20.2% $8.76/g
3.5g 7g 15g
MK Ultra
Aurora
Indica
 20.19% $7.96/g
1g 3.5g 7g 15g
Houndstooth
Tweed
Sativa
 20.18% $8.56/g
1g 15g 3.5g 7g
Hawaii Heartbreak
RIFF
Indica
 20.15% $8.89/g
1g 3.5g 7g
Blue Ninety Eight
RIFF
Indica
 20.1% $9.56/g
3.5g
Rise Reserve
Cove
Sativa
 20.02% $10.27/g
3.5g 7g
Alien Dawg
Canaca
Indica
 20% $9.41/g
3.5g
Ghost Train Haze
Color Cannabis
Sativa
 19.97% $10.19/g
3.5g
D Bubba
Namaste
Indica
 19.92% $9.29/g
1g 3.5g
Indica
Twd
Indica
 19.78% $5.71/g
15g 3.5g 7g
God Bud
Redecan
Hybrid
 19.66% $7.13/g
1g 3.5g 7g 15g
Pink Kush
San Rafael '71
Indica
 19.64% $11.01/g
1g 3.5g 7g 15g
Denman
Broken Coast
Sativa
 19.61% $13.71/g
3.5g
Mango
Canaca
Indica
 19.6% $9.41/g
3.5g
Unite Organic
The Green Organic Dutchman
Indica
 19.24% $12.27/g
3.5g 7g 1g
Josh D OG
Gage Cannabis Co.
Indica
 19.11% $11.63/g
1g 3.5g 7g
Chocolate Fondue
DNA Genetics
Sativa
 19.11% $12.60/g
15g 3.5g 7g 1g
Atlantis
Hexo
Sativa
 19.09% $6.27/g
3.5g 15g
Monkey Glue
Good Supply
Hybrid
 18.98% $5.75/g
28g 3.5g 15g
White Widow
Spinach
Hybrid
 18.85% $8.27/g
3.5g 7g
Two-Tone Ban
RIFF
Hybrid
 18.78% $9.56/g
3.5g
Gather
Solei
Sativa
 18.67% $7.04/g
1g 3.5g 7g
White Rhino
Pure Sunfarms
Indica
 18.64% $6.10/g
1g 3.5g 7g
Pedro's Sweet Sativa
Color Cannabis
Sativa
 18.61% $10.19/g
3.5g
Blue Dream
Aurora
Sativa
 18.36% $8.27/g
1g 3.5g 7g
Saturna
Broken Coast
Hybrid
 18.32% $13.71/g
3.5g
Daily Special Sativa
Aurora
Sativa
 18.27% $4.46/g
3.5g 7g 15g 28g
Galiano
Broken Coast
Sativa
 18.21% $13.71/g
1g 3.5g 7g
No. 17 Craft
FIGR
Indica
 18.12% $9.90/g
3.5g 1g
El Dorado
Edison
Indica
 18.03% $5.70/g
1g 7g 3.5g
Charlees
Redecan
Indica
 18.01% $5.99/g
1g 3.5g 7g 15g
Jean Guy
7ACRES
Hybrid
 18.01% $8.76/g
3.5g 7g
Blue Dream
Canna Farms
Sativa
 18% $14.27/g
3.5g
Rio Bravo
Edison
Sativa
 17.95% $9.02/g
1g 3.5g 7g 15g
OS.220
Original Stash
Indica
 17.95% $4.29/g
28g
Sweet Jersey 3
RIFF
Sativa
 17.87% $9.56/g
3.5g
Afghan Kush
Pure Sunfarms
Indica
 17.81% $6.10/g
1g 3.5g 7g
La Strada
Edison
Sativa
 17.62% $7.16/g
1g 3.5g 7g 15g
Quadra
Broken Coast
Indica
 17.58% $13.71/g
1g 3.5g 7g
Orange CKS
Gage Cannabis Co.
Sativa
 17.57% $11.63/g
1g 3.5g 7g
Daily Special Indica
Aurora
Indica
 17.49% $4.46/g
3.5g 7g 15g 28g
Grower's Choice Sativa
Good Supply
Sativa
 17.4% $5.26/g
3.5g 15g 28g
Lola Montes
Edison
Indica
 17.34% $7.16/g
1g 3.5g 7g 15g
Gabriola
Broken Coast
Indica
 17.16% $13.71/g
3.5g
Sativa
Twd
Sativa
 17.14% $5.71/g
15g 3.5g 7g
No. 402 Blueberry Kush
Haven St.
Indica
 17.09% $9.07/g
1g 3.5g 7g 15g
White Shark
Color Cannabis
Sativa
 17.08% $10.19/g
3.5g
Unplug
Solei
Hybrid
 16.99% $7.57/g
1g 3.5g 7g
Lagoon
Hexo
Indica
 16.95% $5.41/g
3.5g 15g
Blueberry Seagal
Color Cannabis
Indica
 16.92% $10.19/g
3.5g
Black
Fireside
Hybrid
 16.85% $12.50/g
1g 3.5g
Island Sweet Skunk
San Rafael '71
Hybrid
 16.76% $11.41/g
1g 3.5g 7g
Wappa
Namaste
Indica
 16.68% $7.57/g
1g 3.5g
Island Honey
Pure Sunfarms
Sativa
 16.59% $6.10/g
1g 3.5g 7g
Cabaret
AltaVie
Sativa
 16.56% $12.84/g
1g 3.5g 7g
Flicker Buds
Trailblazer
Indica
 16.45% $5.00/g
3.5g 7g 15g
OS.130
HEXO
Sativa
 16.43% $4.29/g
28g
White Widow
7ACRES
Hybrid
 16.29% $8.76/g
3.5g 7g
Lemon Skunk
DNA Genetics
Hybrid
 16.2% $11.14/g
1g 15g 3.5g 7g
Indica Blend
Pure Sunfarms
Indica
 15.21% $4.20/g
28g
Sensi Star
Namaste
Indica
 14.82% $7.57/g
1g 3.5g
Sensi Star
Namaste
Indica
 14.82% $7.57/g
1g 3.5g
Serratus
Tantalus Labs
Indica
 14.49% $6.84/g
3.5g
The Batch
The Batch
Blend
 14.11% $6.36/g
3.5g 7g
Tangerine Dream
San Rafael '71
Sativa
 13.96% $11.01/g
1g 3.5g 7g 15g

In the Avg THC column, the dark bar inside the white bar indicates the average reported thc content(dark bar) in comparison to the highest recorded potency for a single batch across all products(White Bar). The thin gray bar indicates the range between the minimum and maximum consumer reported THC content.