Buy Cannabis Seeds in London, Ontario
London sits in southwestern Ontario's fertile agricultural belt. The region's rich soil and moderate climate (moderated by Lake Huron and Lake Erie) make it one of Ontario's better outdoor growing locations. London's university community has also contributed to a knowledgeable and experimental growing culture.
At Royal King Seeds, we ship premium cannabis seeds directly to London with fast, discreet delivery. Choose from over 1,000 strains — including feminized seeds, autoflowering seeds, CBD seeds, and high-THC seeds — all backed by our germination guarantee. We proudly serve London and all of Ontario as part of our Canada-wide delivery network.
Buying Cannabis Seeds in London
London residents have two main options for purchasing cannabis seeds: local retail stores or online seed banks. Here is why most experienced growers choose to order online:
Strain selection. Local shops in London typically carry a limited selection of seeds. Royal King Seeds offers over 1,000 strains from top breeders worldwide — giving you access to the exact genetics you want.
Better prices. Without retail overhead, online seed banks offer more competitive pricing. Seeds start at just $9.99 CAD, and shipping is free on orders over $99.
Convenience and privacy. Browse and order from home. Your seeds arrive in plain, unmarked packaging — complete discretion guaranteed.
Expert guidance. Our strain guides and growing resources help you choose the right seeds for London's specific growing conditions.
Growing Cannabis in London
Indoor Growing
Indoor cultivation is popular in London year-round. During Ontario's cold winters, indoor setups keep your garden producing. Many London growers operate grow tents or dedicated rooms in basements, spare bedrooms, or garages.
For indoor growers in London, we recommend compact autoflowering seeds that finish in 8-10 weeks and stay under 100cm tall — perfect for tents and small spaces. Read our grow cannabis at home in Canada and cannabis lighting guide to set up your indoor garden.
Outdoor Growing
London's outdoor growing season runs roughly from May through October (southern), June through September (northern). Southern Ontario growers can transplant outdoors after the Victoria Day long weekend (late May). Choose mold-resistant strains, as August and September humidity can be brutal. For outdoor growing in London, choose strains that are mold-resistant strains that handle Ontario's humidity, plus fast-finishing varieties for the northern regions.
Best Cannabis Seeds for London
Based on London's local growing conditions, we recommend:
Top Autoflower Picks
- •Northern Lights Auto — Ideal for London growers
- •Blueberry Auto — Ideal for London growers
- •Gorilla Glue Auto — Ideal for London growers
Browse all autoflowering seeds or explore our mix packs for variety.
Top Feminized Picks
- •White Widow — Thrives in ON conditions
- •Critical Mass — Thrives in ON conditions
- •Shishkaberry — Thrives in ON conditions
Explore feminized seeds, indica strains, or sativa strains for more options. Not sure which seed type is right for you? Check our cannabis seed types explained.
Delivery to London
We deliver cannabis seeds directly to London, Ontario:
- •Shipping time: 2-4 business days to London
- •Free shipping on orders over $99 CAD
- •Discreet packaging — plain, unmarked parcels
- •Tracking number provided with every order
- •Germination guarantee included
We also serve nearby areas including Thunder Bay, Kingston, Cambridge.
London Cannabis Seed FAQ
Can I buy cannabis seeds in London?
Yes. Adults 19+ can legally purchase cannabis seeds in London. Order online from Royal King Seeds for the widest selection and fastest delivery.
How many plants can I grow in London?
Under Ontario law, you can grow up to 4 cannabis plants per household in London.
What are the best seeds for growing in London?
We recommend mold-resistant strains that handle Ontario's humidity, plus fast-finishing varieties for the northern regions. Northern Lights Auto is a top choice for beginners. Read our beginner's growing guide to get started.
How fast is delivery to London?
Most orders reach London within 2-4 business days. Free shipping on orders over $99 CAD.
How do I germinate my cannabis seeds?
Follow our germination guide for step-by-step instructions. We guarantee at least 80% germination when you follow our recommended method.
Helpful Growing Guides
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