
Cannabis seeds in CanadaGrown for Canada.
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Explore feminized, autoflower and outdoor cannabis seeds from Montreal Cannabis Seeds.
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Cannabis seeds, selected in Canada.
Explore feminized, autoflowering, fast version and CBD seeds from Montreal Cannabis Seeds. Compare genetics and strain information, discover our Quebec collection, and find options for your space and season.

For beginners
Your first seeds.
A clearer place to start.
New to cannabis seeds? Explore feminized and autoflower varieties from Montreal Cannabis Seeds. Compare strain information, plant size and flowering time to make an informed choice for your first grow.
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Our own genetics
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Quebec line.
Our own line of carefully selected genetics for Canadian growers. Explore strains that thrive in our environment.
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A Canadian seed bank you can count on.
Selected genetics
A Canadian seed bank with more than 10 years of experience and a catalog built around clear strain information.
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Orders ship in plain packaging with no branding to customers in Canada and the United States.
Shipping details ›Germination support
An 80% germination guarantee applies for 90 days after purchase. See the full replacement terms.
View guarantee ›Latest Cannabis Growing Articles
Compact cannabis seeds for small tents: choose a strain listed at roughly 4 ft (about 120 cm) or less indoors. These picks are listed by Montreal Cannabis Seeds as compact or small, and several are autoflowers that stay manageable because they flower on their own schedule.
Read MoreCannabis seeds for short Canadian summers: pick a strain that finishes outdoors by late September or early October. The strains here are listed by Montreal Cannabis Seeds at a 45–50 day to 8-week flowering time, with a late-September to early-October outdoor harvest.
Read MoreTHC levels in cannabis are far higher today than in the 1970s, and this guide explains how that happened — from the isolation of THC in 1964 through decades of selective breeding. It also covers what a THC percentage actually tells you, and why the highest number is not always the best... Read More
Bat guano for cannabis is a natural soil amendment that supports nutrient availability and microbial life in the root zone. It is not magic dust and not the only good fertiliser, but handled carefully it earns a place in an organic grow. Here is how to use it safely.
Read MoreF1 cannabis seeds are first-generation seeds produced from two distinct, stable parent lines, which is why they tend to grow uniformly and show strong hybrid vigour. This guide explains what F1 means, how these hybrids are made, and what to expect if you breed from them.
... Read MoreCannabis breeding means selecting parent plants, making controlled crosses, and growing out the next generation to find or keep the traits you want. This guide covers choosing parents, pollination, stabilising a line over several generations, and keeping proper records.
Read MoreHydrogen peroxide for plants adds oxygen to the root zone and knocks back some pathogens, but it kills beneficial microbes along with the harmful ones. This guide covers the dilutions growers use, when peroxide genuinely helps, and when it does more harm than good.
... Read MoreSativa strains are usually described as giving a clearer, more energetic effect than indicas, which is why they are often chosen for daytime use. This guide covers what growers commonly report, how sativas differ in growth and flowering time, and which ones suit a home grow.
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