Buying cannabis seeds online comes down to three questions: will they germinate, will they arrive, and will the plant match what the listing promised? We put those questions to the seed banks our community orders from most, comparing catalogue depth, germination policies, shipping practice and the actual deals on the table. Three vendors came out ahead — each for a different kind of grower.

Details checked August 2026. Some links on this page are affiliate links; if you buy through them we may earn a commission, which never influences how we rank or review.

1. Seed Supreme — for the strain hunter

Some growers shop for seeds; others hunt them. Seed Supreme serves the second kind. Its catalogue runs past 1,700 verified varieties, and crucially it still stocks the heritage landraces — Colombian Gold, Durban Poison, Afghan lines — that most modern banks quietly dropped years ago. If a particular lineage matters to you, this is usually where you find it.

• Catalogue depth first: 1,700+ varieties from verified breeders, including pure-lineage landraces
• Bonus seeds ship with every order at no minimum, and code B1G1 doubles select packs
• Quick-finishing varieties (some in the 30–50 day range) suit growers squeezing in multiple cycles
• Plain, unbranded USPS first-class delivery; pays by card, bank transfer, cash or money order
• A loyalty scheme that stacks credits — repeat growers tend to stay

Customer feedback we reviewed repeatedly credits Seed Supreme on two counts: seed quality on arrival and responsive support when something goes wrong — the two things that actually matter once your money has left your account.

➤ Explore the Seed Supreme catalogue and claim the bonus-seed deal

2. ILGM — for the first-time grower

ILGM has built its name on removing reasons to fail. The seeds come backed by a germination guarantee, the price structure is simple, and every order includes access to a substantial free grow guide plus one of the busiest grower forums online. For a first run, that support ecosystem is worth as much as the genetics.

• The signature offer: order 10 seeds, receive 20 — enough for a full tent on one purchase
• Guaranteed germination with free replacement of any seeds that fail to pop
• Free, discreet delivery across all 50 US states
• A back-catalogue of dependable classics — White Widow, OG Kush, Northern Lights — bred for stability
• Card, cash and Bitcoin accepted

The pattern in ILGM reviews is consistency: orders arrive, seeds sprout, and when they don’t, replacements go out without an argument. Unremarkable in the best possible way.

➤ See ILGM’s feminized range and the 10+10 deal

3. Homegrown Cannabis Co — for chasing what’s next

Where Seed Supreme looks backward to preserve genetics and ILGM optimises the basics, Homegrown Cannabis Co looks forward. New cultivars land monthly, so the shelf never goes stale — and because everything is stabilised before release, trying this season’s profile doesn’t mean gambling on an unknown breeder’s homework.

• Monthly drops keep the selection current without sacrificing stability
• A sprouting guarantee with replacements for any seed that fails
• Code B1G1 runs here too, plus free shipping on orders over $25
• Twelve-packs priced below the equivalent singles — built for filling a space with one proven strain
• Loyalty rewards aimed at growers who run season after season

Growers we’ve heard from land on the same note: everything sprouted, the plants finished true to description, and they went back for the next drop.

➤ Browse this month’s new arrivals at Homegrown

Common questions about buying seeds online

Which seed bank should a beginner start with?

ILGM, in most cases. The germination guarantee removes the most discouraging failure mode, the free grow guide covers the fundamentals, and the forum means your first nutrient problem gets answered by someone who has already fixed it.

Where do experienced growers order seeds?

Growers who care about specific lineages tend toward Seed Supreme for its landrace and classic genetics; those chasing current cultivars rotate through Homegrown’s monthly releases. Many use both.

Do these seed banks really ship to the US?

Yes — all three covered here deliver to all 50 states in plain packaging. ILGM ships free with no minimum; Homegrown is free over $25; Seed Supreme ships via first-class USPS.

Feminized, autoflower or landrace — which should I buy?

Feminized seeds remove male-plant risk and suit most photoperiod grows. Autoflowers trade some yield for speed and simplicity. Landraces are for flavour, history and breeding stock — grow them when you want the plant the modern hybrids came from.

What’s the largest online seed catalogue right now?

Of the banks we track, Seed Supreme’s 1,700+ verified varieties is the deepest active US-facing catalogue, particularly once you count its heritage and landrace holdings.

The small print

This guide is for adults 21+. Cannabis seed law differs by state and country — confirm what applies where you live before ordering, germinating or growing. Sellers’ own terms govern every purchase, and offers, codes, prices and guarantee terms are theirs to change — check the current terms on the retailer’s site at checkout.

Affiliate disclosure: purchases made through links on this page may earn The Cannigma a commission at no cost to you. Rankings and opinions are our own and are not for sale.