Grapefruit by Female Seeds
5 other breeders' versions of Grapefruit — compare flowering times side by side →
When you start digging into sativa hybrids that actually finish on time, Female Seeds' Grapefruit is always in the conversation. Ferry started working on this line back in 1998, aiming to lock down a specific fruity profile in seed form. A lot of guys get this confused with the legendary, clone-only Sweet Pink Grapefruit (SPG) that Breeder Steve made famous out in BC. While it's not the exact same cut, Ferry leaned heavily on a prime "Grapefruit pheno" from the Cinderella 99 lines. He essentially captured that sharp, piney, and mouth-watering citrus essence without the finicky traits of a clone-only mother.
For anyone running an indoor setup, this plant is incredibly forgiving compared to pure sativas. She doesn't stretch to the ceiling the minute you flip your lights to 12/12. Instead, you get a highly stable, manageable canopy that stacks dense, classic sativa-structured buds. Back on the forums, novice growers were constantly pointed toward this strain because it takes nutrients well, resists stress, and consistently finishes in about 8 weeks. It completely destroyed the myth that you needed 12 weeks of flowering to get a proper uplifting head stash.
The smoke is where this strain really earns its name. It tastes exactly like a freshly cut grapefruit with a biting, tart citrus finish that coats your whole mouth. It’s the perfect wake-and-bake jar. You get a soaring, positive sativa high that wipes out brain fog but doesn't induce the heart-racing paranoia you get from true Hazes. Over the years, Female Seeds managed to keep the line super consistent, giving everyday home growers a chance to run a legendary flavor profile without having to hunt down elite cuts.
🏆 Legendary Foundation Strain
This is one of the most influential cannabis varieties in history. Grapefruit has been used to breed 63 documented descendant strains in our database, making it a cornerstone of modern genetics.
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🧬 Explore the family: Grapefruit · Sour Grape · Sweet Pink Grapefruit · Grapefruit Haze · Sweet Special F1 Fast Version · Merville Blueberry · B.C. Grown - Grapefruit · Sour Grape Kush · Grape Muerto
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Nectar Seeds
Nectar Seeds
Brothers Grimm
Brothers Grimm
Sensi Seeds
The Seed Bank
Clone Only Strains
Unknown or Legendary
Original Strains
Original Strains
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
Brothers Grimm
Brothers Grimm
Brothers Grimm
Brothers Grimm
Unknown or Legendary
Brothers Grimm
Unknown or Legendary
Brothers Grimm
Sensi Seeds
The Seed Bank
The Seed Bank
The Seed Bank
Original Strains
Growing Grapefruit: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Grapefruit will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Grapefruit FAQ
How long does Grapefruit take to flower?
Grapefruit typically flowers in around 56 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Grapefruit an indica or a sativa?
Grapefruit is listed as mostly sativa.
What are the parents of Grapefruit?
Grapefruit was bred from Grapefruit by Female Seeds.
What environment does Grapefruit like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
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