The best outdoor seeds for Ontario growers, compared across 33 verified seed banks shipping to ON. Prices in CAD.
Quick Answer
Outdoor cannabis seeds are available for Ontario growers from 33 verified seed banks on Seennabis, shipping to ON in CAD. Outdoor seeds are vigorous, weather-tolerant genetics built for full-season outdoor grows. Ontario's longer season (about 150 frost-free days) supports full-cycle grows. The legal age in Ontario is 19+ with home growing of up to 4 plants permitted.
Outdoor growing harnesses natural sunlight for massive yields — 1kg+ photoperiod harvests, fast-finish autoflowers for northern climates. Mold-resistant, pest-resistant strains from 33 verified seed banks. For Ontario specifically, excellent outdoor province — southern Ontario supports full-season photoperiods; watch September bud rot in humid years. Outdoor genetics are vigorous, weather-tolerant genetics built for full-season outdoor grows.
Start indoors late April, transplant outdoors after the last frost (mid-to-late May in the south, early June further north). Photoperiods finish late September to mid-October; autoflowers fit two stacked runs in the south.
feminized · 70-80% THC · 10-12 weeks
$7.64/seed · Blimburn Seeds
feminized · 60-80% THC · 8-10 weeks
$9.49/seed · Blimburn Seeds
feminized · 20-25% THC · 8-10 weeks
$7.64/seed · Blimburn Seeds
feminized · 23-26% THC · 8-10 weeks
$7.64/seed · Blimburn Seeds
feminized · 50-70% THC · 8-10 weeks
$7.64/seed · Blimburn Seeds
feminized · 22-26% THC · 8-9 weeks
$7.51/seed · Royal Queen Seeds
feminized · 60-70% THC · 8-10 weeks
$6.38/seed · Premium Cultivars
feminized · 65-70% THC · 8-10 weeks
$6.38/seed · Premium Cultivars
feminized · 50-70% THC · 9-11 weeks
$6.57/seed · Bomb Seeds
Outdoor seeds are vigorous, weather-tolerant genetics built for full-season outdoor grows. Ontario's longer season (about 150 frost-free days) supports full-cycle grows, so outdoor seeds can work well when matched to the local season and your setup.
All 33 verified seed banks on Seennabis ship outdoor seeds to Ontario with CAD pricing and germination guarantees. Compare prices on the picks above or the full outdoor category.
Yes — buying cannabis seeds is legal for adults 19+ in Ontario. Up to 4 plants per residence for personal use.