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Quebec Blast Cannabis Seeds Feminized
$50.00
5 Seeds Per Pack
A mostly indica strain from the QCS team with 24% THC and a pine, spice and sweet flavour. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada. See the grow diaries on GrowDiaries.
Strain at a Glance
A mostly indica strain from the QCS team with 24% THC and a pine, spice and sweet flavour. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada. See the grow diaries on GrowDiaries.
Genetic Balance
Key Information
- THC24%
- CBDUnder 1%
- TastePine • Spice • Herbal
- Indoor flowering time9 weeks
- Outdoor harvest timeMid-October
Specifications
| Strain | Quebec Blast |
|---|---|
| Seed type | Feminized |
| Genetic balance | Mostly indica |
| THC | 24% |
| CBD | Under 1% |
| Taste | Pine, Spice, Herbal |
| Indoor flowering time | 9 weeks |
| Outdoor harvest time | Mid-October |
| Yield | 300 g/m² or more indoors, up to 500 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
Fresh pine first, then spicy herbal notes and a sweet finish.
About Quebec Blast
Genetics & strain profile
Quebec Blast is a QCS strain, mostly indica, with 24% THC and less than 1% CBD. The feminized seeds give consistent plants, and it suits beginners as well as experienced growers.
How Quebec Blast grows
Indoors it reaches a medium height and flowers in about 9 weeks, with 300 g/m² or more.
Outdoors or in a greenhouse it is typically ready in mid-October, with up to 500 g per plant, depending on growing conditions. It is tolerant of common pests and mould, though no strain is immune.
Taste and effect
Fresh pine first, then spicy herbal notes and a sweet finish. The effect is euphoric and clear-headed at the start, then relaxing and introspective.
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 Canada, outdoors: 118 g dry after the plant was hit by hail on 7 September.
Individual results, not averages or promises. How we set our numbers.
Frequently Asked Questions
How long does Quebec Blast take to flower?
About 9 weeks indoors. Outdoors it is typically ready in mid-October.
How much does Quebec Blast yield?
300 g/m² or more indoors, and up to 500 g per plant outdoors.
Is Quebec Blast easy to grow?
It is rated easy to moderate. It stays at a medium height and resists common pests and mould.
How strong is Quebec Blast?
It has 24% THC and less than 1% CBD.
What does Quebec Blast taste like?
Pine, spicy herbs and a sweet finish.
Where can I buy Quebec Blast 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.
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.
Details: Shipping · Return policy · FAQs · Privacy policy
- Availability: In Stock
- Model: Q.C.S.
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Manufacturer:
22/10/2025
Grew 1 plants outside and wow. They were grown in promix in 15 and 20 gallon pots. They got about 7 feet tall and were very frosty, stinky and sticky. They are very resistant to mildew and rot. After harvest ( mid October only due to windy conditions breaking them) I ended up with approximately 1/2 pound per plant. I left some on the plant and it’s still not moldy. I would definitely recommend this strain and will grow again next year.
30/06/2025
Have 2 on the go now and they smell and look great.
02/01/2025
J'ai essayé seulement 1 seed à date. Structure plutôt Indica, compacte et assez feuillue. Très pinène et un peu âcre, mais il me manquait le côté plus sucré dont les autres parlent ici.
Bon buzz.
Bonne production intérieure.
Facile à cloner.
Pas mon préféré au goût, mais 5/5 pareil pour la prod.
26/09/2024
Started 1 plant from a freebie seed this summer in a 8 gallon pot and the results are amazing. Plant is a very fast and vigorous grower with no issues. We are now at the end of September and the plant is 5 feet tall and has grown untopped into a classic Christmas tree shape. Buds are not that big however they are extremely dense and rock hard with nice crystal production. The smell is sublime and resembles Vicks vapour rub very piney but sweet at the same time. If I could start over I would have used a larger pot and used more fertilizer as plant is a heavy feeder. Two thumbs way up, highly recommended
17/11/2023
Ok we are 57 days in flower, 2 wedding cake finished hanging to dry, and the Quebec blast is so crazy, it’s as if there was a mistake and a seed from different area rolled in..one plant is short, topped once and got ten tops exactly…thing is the buds are bright red, and round like golf balls, but the color is incredible..the second one is much taller with massive buds, dark in color, and to be true I’m glad this is the way it is, got 2 in 1..so happy with this grow, still not finished, But it’s going to be one wonderful Xmas…should be burped by then…yippee..
Thank you Quebec seed bank…wow every time..some people say they are coming back, I say you can’t get rid of me…lol
12/11/2023
I got this plant, planted two, and one the buds are deep red, so pretty it’s so beautiful, it’s smaller than her sister..however her sister has grown much taller, and with five tops around one and half feet tall with the buds around 14 inches and bear bottle round, and it’s very close to finish, 52 days in flower, and I’m in shock, the beauty..plus on time again, another plant that says how much time to grow, and it’s more than true, thank you to all you hard working girls and guys who make our dreams come true..
Thank you QCS.
30/09/2023
Had to come back to say I actually forgot how she grew or looked like I went through so many strains…
But this Quebec Blast is so funny looking, I love the way she looks, short, but so bushy I had to give her some careful hair cut, now she is standing higher, and praying to her maker, gosh what a beautiful plant, I’ll fill everyone in in a month, as it has a fast growing period which is awesome, the difference between plants are truly amazing, but I got to wait few months for more seeds, and looking at another with the heading Quebec , blue, gold, many types, I’ll try them all…one type I’ll have to get is Wedding Cake, until I find another that helps pain
26/09/2023
J'ai recu en cadeau ce merveilleux strain au terpènes qui sortent de l'ordinaire , style sapin poivrer épicé , un excellent buzz indica mais qui n'endort pas , il ne sentait pas trop en floraison mais durant le curring les odeur ont explosé , la génétique supporte bien la chaleur car c'est le seul qui a survécu a l'été trop chaud dans ma tente , je vous remercie de m'avoir permis de déguster cette saveur si particulière , assurément dans mon panier a la prochaine commande
23/09/2023
Started two Quebec Blast, last two seeds, today is day one of flower, so excited, the last run was so strong I couldn’t finish a joint…excellent plant…and even better Seed Bank, Quebec Seed Bank , rocks…can only order at Xmas, only thing I ask from Santa, is seeds from the best bank..
Also got 2 wedding cake also day one in flower, both types are really beautiful, very different. I definitely need more Quebec Blast, Wedding Cake, and one other called Mac 1….the grow I have now should be finished before Xmas…yippee..
31/08/2023
Ttook me three yrs to find, what works for myself..two kinds , both from the best dispensary I found..used to get seeds from out west, and they hermed all the time, every seed I bought from them was terrible, with my new place to buy seeds is amazing, I’ve been growing for fifty yrs..little experience, love to experiment, anyway I’m here to say thank you so much to all you girls and guys that work so hard to give us the best, plus there service is second to none…Thank You…