Français 
Strain at a Glance
A fast-finishing strain with around 25% THC, purple-tinted buds and a berry candy flavour.
Genetic Balance
Key Information
- THCAround 25%
- GeneticsRuntz Cake × Blackberry Kush
- TasteBerry • Sweet candy • Cream & vanilla • Earthy
- Indoor flowering time8–9 weeks
- Outdoor harvest timeEarly October
Specifications
| Strain | Blackberry Runtz |
|---|---|
| Seed type | Feminized |
| Genetics | Runtz Cake × Blackberry Kush |
| THC | Around 25% |
| Taste | Berry, Sweet candy, Cream & vanilla, Earthy |
| Indoor flowering time | 8–9 weeks |
| Outdoor harvest time | Early October |
| Yield | 400–600 g/m² indoors, 300–350 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
Fresh, the flavour is bright berry candy — the Runtz signature — and with curing it deepens into a rich berry-cream Kush with an earthy, slightly floral finish.
About Blackberry Runtz
Genetics & strain profile
Blackberry Runtz is a cross of Runtz Cake and Blackberry Kush: the candy-sweet, resin-heavy Runtz line on one side and a hardy, dark-fruited Kush on the other. It carries around 25% THC with very little CBD, and it is one of the few Runtz crosses we would recommend for a Canadian garden, because the Blackberry Kush parent brings hardy mould resistance and an early finish along with its calming body effect and its colour. It is a new addition to our catalogue, so there are no customer reviews yet — the figures below come from our own grows, and we will add grower reports as they come in. If you grow it this season, we would love to hear how it does.
How Blackberry Runtz grows
The plants reach 1 to 5 feet depending on veg time and finish in a quick 8 to 9 weeks indoors, with chunky, purple-tinted buds and 400 to 600 g/m² under strong full-spectrum light — this strain rewards light intensity more than most. Outdoors it is typically ready in early October, with 300 to 350 g per plant in large pots or raised beds; it stays compact enough for a balcony or a small garden. The purple colour develops on its own but deepens with cool nights late in flower. The buds are dense, so even with the mould tolerance from Blackberry Kush, give the plants airflow and avoid overhead watering in the final weeks.
Taste, aroma and effect
Fresh, the flavour is bright berry candy — the Runtz signature — and with curing it deepens into a rich berry-cream Kush with an earthy, slightly floral finish. The effect comes in two phases: first an energetic, talkative, creative buzz, then a calm body that eases you into the evening without a crash. At around 25% THC it is strong, so pace yourself. For other candy-flavoured strains, see Zkittlez and Truffle; for a darker purple indica, Quebec Black Bud.
Frequently Asked Questions
How long does Blackberry Runtz take to flower?
8 to 9 weeks indoors. Outdoors it is typically ready in early October.
How much does Blackberry Runtz yield?
400 to 600 g/m² indoors under strong light and 300 to 350 g per plant outdoors in large pots or raised beds.
How strong is Blackberry Runtz?
Around 25% THC with very little CBD.
Is Blackberry Runtz indica or sativa?
A hybrid with a two-phase effect: an energetic, creative start, then a calm body.
Is Blackberry Runtz mould resistant?
Yes — the Blackberry Kush parent brings hardy mould resistance, though dense buds still need airflow.
How tall does Blackberry Runtz get?
1 to 5 feet depending on veg time; compact enough for a balcony.
Does Blackberry Runtz turn purple?
Yes. The buds are purple-tinted and deepen with cool nights late in flower.
What are the parents of Blackberry Runtz?
Runtz Cake and Blackberry Kush.
Where can I buy Blackberry 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.
- Manufacturer: AlphaType for Quebec Cannabis Seeds