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Outdoors, the frost sets your deadline.
Short summers and cool nights decide what finishes. Pick outdoor seeds by the month they are ready to harvest.
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Up to 30% off this week
Selected feminized and autoflower seeds, while supplies last.
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35+ years of hands-on growing experience.
Our founder brings more than 35 years of personal, hands-on growing experience to Quebec, helping us select and preserve genetics that truly perform in real-world conditions.
Our Story
QCS founded in 2015
A Canadian seed bank, built by growers for growers. Proudly based in Quebec, QCS is committed to quality genetics and a stronger cannabis seed community.
Learn MoreNot sure where to start? Call us at 514-805-2741, Monday to Friday, 11 am to 6 pm EST, and we will help you choose a strain.
Growing guides
View all guides →
A review of the Cheetah Piss strain: genetics, taste, effect, yield, flowering time and how it handles the outdoor season in Canada.
Read More: Cheetah Piss Strain Review: Genetics, Effects and Growing Tips10/08/2026 By
QCS
Feminized, autoflower, fast version and CBD seeds compared: how each type flowers, when it finishes outdoors in Canada, and who it suits.
Read More: Types of Cannabis Seeds: Feminized, Autoflower, Fast Version and CBD10/06/2026 By
QCS
Seven things to compare before you order cannabis seeds in Canada, from the germination guarantee to the privacy policy, with our own answer to each.
Read More: How to Choose a Cannabis Seed Bank in Canada: 7 Things to Compare10/05/2026 By
QCS
Ten outdoor strains for Quebec’s short season, listed by how early they finish: from Quebec Early Bud in mid-September to Quebec Blue in mid-October, with harvest dates, yields and THC for each.
Read More: 10 Best Outdoor Cannabis Strains for Quebec’s Short Season10/04/2026 By
QCS
If you've ever pressed fresh bubble hash and watched it melt into golden rosin under heat and pressure, you already know why solventless has taken over the concentrate scene — no butane, no ethanol, just ice water, mesh bags, and the trichomes your plant spent weeks building.
Read More: Best Weed Strains for Rosin | 10 Resin-Rich Picks from QCS09/07/2026 By
QCS
Want to grow eye-catching cannabis with deep purple, violet, and burgundy buds? Growing purple weed buds starts with the right genetics, but temperature, lighting, nutrition, and flowering conditions can all influence how strongly those colours develop. In this guide, we explain what makes...
Read More: Growing Purple Weed Buds: How to Make Cannabis Turn Purple08/24/2026 By
QCS
Discreet ShippingOrders packed discreetly in Quebec
Free ShippingOn orders over $200
Established in 2015A Canadian seed bank based in Quebec
Explore Cannabis Seeds with QCS
Buy Cannabis Seeds Online from Quebec
Quebec Cannabis Seeds (QCS) is a Canadian seed bank that has supplied cannabis seeds to home growers since 2015. We carry more than 300 strains of feminized, autoflower and CBD marijuana seeds, and many are bred and selected in Quebec for northern outdoor conditions: short summers, cool nights and high humidity. Shop all seeds
Indica-Dominant Cannabis Seeds
Indica-dominant strains tend to stay compact and finish earlier, which suits small spaces and short outdoor seasons. Browse indica-dominant seeds
Sativa-Dominant Cannabis Seeds
Sativa-dominant strains tend to grow taller and finish later, so they suit growers with more space and time. Browse sativa-dominant seeds
Autoflower Cannabis Seeds
Autoflower seeds flower automatically, without a change in the light schedule, which makes them popular with beginners and for short northern summers. Browse autoflower seeds
Feminized Cannabis Seeds
Feminized seeds are bred to produce female plants, the ones that grow the flowers, so there are no males to sort out. Browse feminized seeds
Choosing Seeds for Indoor Growing
Indoors you control light, temperature and humidity, so most feminized and autoflower strains do well. Our indoor growing guide covers lights, tents and setup. Read the indoor growing guide
Choosing Seeds for Outdoor Growing
Choose outdoor seeds by the month they are ready to harvest. See our guide to the best outdoor strains for Quebec. See the best outdoor strains
Cannabis Seeds for Beginners
For a first grow, choose forgiving, easy-to-grow strains. Browse seeds for beginners
Why Choose Quebec Cannabis Seeds?
You are buying directly from the breeder: QCS has bred and selected seeds in Quebec since 2015, led by a grower with more than 35 years of experience. Every order ships from our own location in Quebec in discreet packaging. Why choose QCS
Frequently Asked Questions
Where does Quebec Cannabis Seeds ship?
We ship cannabis seeds across Canada and to the USA. Orders over $200 ship free.
How does direct shipping work?
Every order ships from our own location in Quebec, usually the same day or within 24 hours of payment confirmation, Monday to Friday via Canada Post, in discreet packaging with no logos. Express delivery includes a tracking number. Read our shipping information.
Where can I read the germination guarantee?
It is on our FAQ page: we will send replacement cannabis seeds if the germination is below 80%.
What is the difference between feminized and autoflower seeds?
Feminized seeds are bred to produce female plants. Autoflower seeds flower automatically, without a change in the light schedule.
Which cannabis seeds suit beginners?
Forgiving strains and autoflowers are a good first choice, because they are easier to grow and flower on their own schedule. See our cannabis seeds for beginners.
Do I get free seeds with my order?
Yes. We add free cannabis seeds to every order.
Which seeds are best for growing outdoors in Canada?
Choose by harvest month. Most autoflowers finish in August, early photoperiod strains finish in September, and longer-season strains finish in October. Our outdoor category lists strains selected for short summers and cool nights.
How many seeds are in a pack?
Most packs contain 5 seeds. Mixed packs contain 8.
How can I order?
Order online with Visa or Mastercard, or by phone at 438-800-4298, Monday to Friday, 10 am to 6 pm EST.
18+ • Follow the laws that apply in your location.