Quebec Blue Cannabis Seeds Feminized
$60.00
5 Seeds Per Pack
A berry-sweet, easy-to-grow hybrid bred in Quebec by the QCS team. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada. See the grow diaries on GrowDiaries.
Strain at a Glance
A berry-sweet, easy-to-grow hybrid bred in Quebec by the QCS team. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada. See the grow diaries on GrowDiaries.
Genetic Balance
balance
Key Information
- THCUp to 25%
- GeneticsBlue Fire × Grand Daddy Purple
- TasteBerry
- Indoor flowering time8–10 weeks
- Outdoor harvest timeMid-October
Specifications
| Strain | Quebec Blue |
|---|---|
| Seed type | Feminized |
| Genetics | Blue Fire × Grand Daddy Purple |
| Genetic balance | 60% sativa, 40% indica |
| THC | Up to 25% |
| Taste | Berry |
| Indoor flowering time | 8–10 weeks |
| Outdoor harvest time | Mid-October |
| Yield | 500–600 g/m² indoors, up to 750 g per plant outdoors |
| Pack size | 5 Seeds Per Pack |
These figures are ranges, not promises. Flowering time, harvest date and yield vary depending on growing conditions: the grower, the method and the season's weather. "Mold resistant" means mold tolerant: less prone to mold and slower to be affected. No strain is 100% mold resistant. How we set these numbers →
Taste & Aroma Profile

Sweet berry on the nose, fruit on the inhale, and a mellow berry finish that lingers.
About Quebec Blue
Genetics & strain profile
Quebec Blue is one of our own crosses, bred here in Quebec. We paired Blue Fire, for its fruit and its lift, with Grand Daddy Purple, for its body and colour. The result is a sativa-leaning hybrid that reaches up to 25% THC and is easy to grow, even for a first-time grower.
How Quebec Blue grows
Indoors it stays at a medium height and finishes in 8 to 10 weeks, with 500 to 600 g/m² when it is well looked after. Topping and low-stress training even out the canopy and let more light reach the lower buds.
Outdoors or in a greenhouse it does best in a temperate season and is ready to harvest in mid-October, with up to 750 g per plant. It holds up well against common pests and mould.
Taste and effect
Sweet berry on the nose, fruit on the inhale, and a mellow berry finish that lingers. The high starts in the head, clear and upbeat, then settles into the body. It works for daytime and for winding down.
Grown in Canada: what growers reported
From public grow diaries written by the growers themselves, not by us. Full analysis: what 400+ grower reports told us.
- Northern Ontario, outdoors: seed popped 30 April, cut 17 October, 348 g dry, no mould reported.
- A separate diary lost most of its flowers to powdery mildew after a wet spell.
Individual results, not averages or promises. How we set our numbers.
Frequently Asked Questions
How long does Quebec Blue take to flower?
8 to 10 weeks indoors. Outdoors it is ready to harvest in mid-October.
How much does Quebec Blue yield?
500 to 600 g/m² indoors, and up to 750 g per plant outdoors or in a greenhouse.
Is Quebec Blue easy to grow?
Yes. It is an easy strain that suits beginners. It stays at a medium height and resists common pests and mould.
What does Quebec Blue taste like?
Sweet berry and fruit, with a mellow berry finish.
Where can I buy Quebec Blue seeds in Canada?
Right here at Quebec Cannabis Seeds. Orders ship from Quebec within 24 hours on business days, in plain packaging, across Canada and to the USA, with a germination guarantee.
Want the full picture before you buy? Read our Quebec Blue strain review, covering genetics, effects, flavour and how to grow it.
Order with confidence
- Germination guarantee. If fewer than 80% of your seeds germinate, we send replacement seeds.
- Delivery guarantee. We guarantee delivery of your order.
- Discreet packaging. Plain, unbranded packaging with no logos and no mention of the contents. No signature is required.
- Shipped from Quebec within 24 hours. Orders usually ship the same day or within 24 hours of payment, Monday to Friday. Canada: 3 to 7 days, or 2 to 3 days by Express. USA: 1 to 2 business days by Express. Free shipping on orders over $200.
- Your privacy. We do not sell or share your information with third parties.
- Free seeds with every order, and real people to help: 514-805-2741, Monday to Friday, 11 AM to 6 PM EST.
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13/10/2026
More awesome genetics from Quebec seeds!! Very enjoyable grow.

22/08/2026
3rd year in row growing this strain and it does not disappoint. I grow these outdoors and with proper grooming and care through out the season this strain delivers what it says -- 420 strong man -- also makes good bubble hash.

19/10/2025
Huge perfect Christmas Tree structure, Heavy feeder, Massive fluffy long buds. by far the best smelling, forsure overpowering blueberry smell, but its also very complex with hints of wine in my opinion. Finished up very quickly near the end, oh this plants has massive dinosaur like fan leaves way bigger than your hand, i even got 11 bladed leaves

29/07/2025
looking at seeds cuz its summer and feel like growing again...ive grown the quebec blue..if i remember well i had bought purple kush and jack herer and i received the extra seeds of quebec blue...amazing plant..it smelled like lavander you couldnt tell if it was cannabis or real lavander!!most amazing cannabis smell i experienced!!the purple had a great smell also!!very fruity!!someday ill grow these plants again!!

26/07/2025
Outdoor 2024. One in ground and one in 20 gallon pot. The in ground was beside a Quebec LSD plant. Unfortunately, the Blue got PM quite bad and I had to chop it early. The QC LSD next to it was fine though. The in ground Blue also had almost zero smell on the buds. I’d never experienced anything like it. It was 7 feet tall and covered in mid matured buds when chopped. A bit disappointed that I couldn’t get ahead of the PM. However… the potted Quebec Blue may have been the best buds I’ve ever grown. Incredible smell, taste, and high. Completely different than the in ground. I’ve grown many QCS strains and I will buy this again. Top notch buds. Also, a great company to deal with.

11/05/2025
I ordered my seeds back in February Gelato/Granddaddy purple/ two freebies Quebec blue i live in southwest Nova Scotia this is my fourth year buying seeds from this company. Been growing for 50 years over the years I've bought seeds from numerous companies they were a joke compared to Quebec cannabis they are by far the best company I've delth with. Seeds arrived in three days started germinating last of April in the paper towel sprouted in two days in the cups May 3rd all 7 are up about 2+inches looking great . Best price Best quality Best service Best delivery And freebies on every order what more could you want O and there Canadian . Big thankyou to you guys awesome job

03/04/2025
Received as bonus on order last season. Great freebie very good yields over 600 grams of trimmed buds per plant and a very good smooth smoke.

16/01/2025
Holy smokes, these plants are in 40 days in veg, and are already so tall and bushy.
What a wonderful structure. And the embellishment already, Every plant I get here is a winner.

10/01/2025
This was a second try at Quebec Blue and it was even better. Been at this a while and I can say this is some of the best I have grown or smoked. 2lbs finished is the best from a single plant. Little sun, food and LST is all you need to make these girls shine.

22/11/2024
I just decided to buy every pack that starts with Quebec, blue. black, on and on. I found 12 types that start with Quebec, I’m very excited. Don’t know what magic they use for their seeds. It’s amazing, smell, growth, this seed bank is amazing …thank you so much.
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