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Black Runtz Cannabis Seeds Feminized
$55.00
5 Seeds by Pack
A compact, 70% indica hybrid from the QCS team with 30 to 32% THC and a sweet, fruity flavour. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada. See the grow diary on GrowDiaries.
Strain at a Glance
A compact, 70% indica hybrid from the QCS team with 30 to 32% THC and a sweet, fruity flavour. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada. See the grow diary on GrowDiaries.
Genetic Balance
balance
Key Information
- THC30–32%
- GeneticsBlack Diamond Sherbet × Runtz
- TasteEarthy • Spice
- Indoor flowering time8–9 weeks
- Outdoor harvest timeLate September to early October
Specifications
| Strain | Black Runtz |
|---|---|
| Seed type | Feminized |
| Genetics | Black Diamond Sherbet × Runtz |
| Genetic balance | 70% indica, 30% sativa |
| THC | 30–32% |
| Taste | Earthy, Spice |
| Indoor flowering time | 8–9 weeks |
| Outdoor harvest time | Late September to early October |
| Yield | Up to 450 g/m² indoors, up to 550 g per plant outdoors |
| Pack size | 5 Seeds by 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 and fruity from its Runtz side, with an earthy, spicy aroma.
About Black Runtz
Genetics & strain profile
Black Runtz is bred by Quebec Cannabis Seeds from Black Diamond Sherbet and Runtz. It is a 70% indica, 30% sativa hybrid with 30 to 32% THC, which makes it one of the strongest strains we offer. It suits both new and experienced growers.
How Black Runtz grows
The plants are compact and sturdy, which makes them a good fit indoors. Flowering takes 8 to 9 weeks, with up to 450 g/m².
Outdoors it is ready from late September to early October, with up to 550 g per plant. Keep the humidity down during flowering to prevent mould and mildew.
Taste and effect
Sweet and fruity from its Runtz side, with an earthy, spicy aroma. The effect is deeply relaxing, with a euphoric, mood-lifting start.
Frequently Asked Questions
How long does Black Runtz take to flower?
8 to 9 weeks indoors. Outdoors it is ready from late September to early October.
How much does Black Runtz yield?
Up to 450 g/m² indoors, and up to 550 g per plant outdoors.
Is Black Runtz easy to grow?
It suits both new and experienced growers. The plants are compact and sturdy.
How strong is Black Runtz?
It has 30 to 32% THC.
What are the parents of Black Runtz?
Black Diamond Sherbet and Runtz.
Where can I buy Black Runtz 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:
08/04/2026
The bud these plants produce is very good, most of the time. I have had phenotypes fall far below the 32% thc range, although still very good bud. This plant also has a strong tendency to herm. I ran 2 different crops and both threw bananas mid-late in the grow. They are also touchy plants to grow. But all in all the bud is still fantastic. Will most likely try different strains in the future due to its touchy tendency.
27/09/2025
I just grew a 10 foot monster so far this year! Thanks to QCS and their great genetics. This is my second year growing Quebec white and three other plants. All have performed as advertised. I’m definitely going back to them for some new seeds for next year. Thanks to QCS, and a great growing year and I’m totally happy!
22/05/2025
I am at week five in flower with the Black Runtz, she clones extremely well and the trichomes are mind boggling! Love the work you've done folks, I look forwards to try more of your strains in the future.
05/02/2025
Never seen such colour in this type, my gosh not only the colours, but the strength, wow
02/02/2025
Growing outdoors The plant lasts over 9 weeks from flowering - it's October 20 and the plant isn't quite ready yet. The genetics are very resistant as such, big plants, many heads not very big. No mold or bud rot. No stress sign. Description says: visually attractive head they are normal with brown pistillas .
21/01/2025
Hey, just popped a black runtz, so far so good, the two different potential THC percentages, is that from using CO2 enrichment?
Thanks for that. I had not noticed. That was a mistake on our part. the correct is THC 30% and 32%
31/12/2024
Started growing this strain and came back to this site to read the description again. It now says that black runtz ranges from 30%-32% thc at the top and at the bottom says it's 21%-24%.
Why is the information conflicting? Just an error?
18/11/2024
Germinated 3, one was a runt.
Other 2 in 5 gallon pails "trained" yielded 17 ounces of kick ass bud by 3rd week in September.
Very strong but easy on the anxiety end.
Taste is neutral I'd say. When u see "earthy" in description one could assume it taste like dirt.
Already made 1st batch of cookies.
"High"ly recommended .
02/10/2024
As a medical user, Black Runtz Feminized has been excellent for managing my stress and chronic pain. The high THC content really makes a difference in easing my symptoms.
26/04/2024
I ordered these seeds on Sunday, and by Thursday, all of them had sprouted and were already planted. I will finish the review after harvest time. But so far very happy.