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Strain at a Glance
A fast, sativa-dominant strain with 18 to 22% THC, heavy yields and a zesty grapefruit aroma.
Genetic Balance
Key Information
- THC18–22%
- TasteCitrus • Earthy
- Indoor flowering time8 weeks
- Outdoor harvest timeOctober
Specifications
| Strain | Grapefruit |
|---|---|
| Seed type | Feminized |
| Genetic balance | Sativa dominant |
| THC | 18–22% |
| Taste | Citrus, Earthy |
| Indoor flowering time | 8 weeks |
| Outdoor harvest time | October |
| Yield | Up to 650 g/m² indoors, over 650 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
A bright, zesty citrus aroma like freshly cut grapefruit, with lemon, earthy and musky notes — the Ontario grower’s smell and taste reviews back this up.
About Grapefruit
Genetics & strain profile
Grapefruit is a sativa-dominant strain originally developed from a select lineage of sativa genetics, with 18 to 22% THC and an invigorating effect that suits daytime. It has two reviews, and they point in opposite directions. A central Ontario grower raised it outdoors and found “the most amazing grapefruit smell and taste”, huge, very sticky buds and a smooth, sweet smoke. A second buyer, sowing in peat pods, got one seed out of five to sprout — the survivor looked strong, but he felt that was not ideal for $50. That is exactly the situation our guarantee exists for: contact us if seeds do not come up and we will replace them. We would rather you tell us than quietly lose a pack. Our seeds are guaranteed, and a sativa like this repays the effort of a careful start.
How Grapefruit grows
Indoors it flowers in 8 weeks — quick for a sativa — and can give up to 650 g/m²; the plants are described as resilient. Outdoors it is a plant for a good season: expect to harvest around October, with yields that can exceed 650 g per plant depending on conditions, so in Quebec and Ontario start it indoors in April, plant out after the last frost in full sun and keep a cover handy for an early cold snap. Sativa-leaning plants stretch, so top early and use a net. For germination, the peat-pod failure suggests not over-soaking: keep the starter medium damp but not wet, around 22 to 25 °C, and give the seed a few extra days before judging it. Harvest by trichomes, not by the calendar.
Taste, aroma and effect
A bright, zesty citrus aroma like freshly cut grapefruit, with lemon, earthy and musky notes — the Ontario grower’s smell and taste reviews back this up. The effect is a strong, uplifting cerebral high, suited to the morning, afternoon and creative tasks rather than bedtime. For other citrus and sativa-leaning strains, see Lemon OG Kush, Amnesia Haze, Mimosa and Durban Poison.
Frequently Asked Questions
How long does Grapefruit take to flower?
8 weeks indoors. Outdoors it is typically harvested around October.
How much does Grapefruit yield?
Up to 650 g/m² indoors, and yields that can exceed 650 g per plant outdoors depending on conditions.
How strong is Grapefruit?
18 to 22% THC, with a strong, uplifting cerebral high.
Is Grapefruit easy to grow?
The plants are resilient. As a sativa-leaning plant it stretches, so top early and use a net.
What does Grapefruit taste and smell like?
Bright, zesty citrus like freshly cut grapefruit, with lemon, earthy and musky notes.
What do customers say about Grapefruit?
One outdoor grower in central Ontario praised the smell and huge, sticky buds; another had one of five seeds sprout in peat pods.
What if my Grapefruit seeds do not germinate?
Our seeds are guaranteed. Contact us and we will replace them.
When is Grapefruit best used?
Its uplifting cerebral effect suits daytime rather than bedtime.
Where can I buy Grapefruit 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
23/04/2025
1 out of 5 seeds sprouted in peat pods. The one that made it is looking strong but not ideal for spending $50
We do Garantie our seeds you just have to email us for replacement.
30/12/2023
The most amazing grapefruit smell and taste. Great outdoor grow in central Ontario. Buds were huge and very sticky. Loving the smoke from this strain, smooth and sweet!