Grapefruit Bx1 by B.C.G.A.

Type indica/sativaFlower ±53 daysCross Grapefruit × Grapefruit x Blueberry

Grapefruit Bx1, from breeder B.C.G.A., is an indica-leaning strain descended from Grapefruit × Grapefruit x Blueberry. Indoors it typically finishes flowering in around 53 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Grapefruit Bx1 grows against.

🌿 Start a Grapefruit Bx1 journal — free →

Similar strains

Grapefruit x BlueberryB.C.G.A. · ±50 daysSpace QueenB.C.G.A. · ±55 daysBlueberryB.C.G.A. · ±50 daysOrange CrushB.C.G.A. · ±55 daysBeauty and the BeastB.C.G.A. · ±50 daysKiller QueenB.C.G.A. · ±50 daysBlueberryPoppa Pain Strains · ±53 daysBlueberry CustardSalve My Body · ±53 daysChester the molesterSinisterslim · ±53 daysCitral SkunkCH9 Female Seeds · ±53 daysClassic SkunkZamnesia · ±53 daysCoco Grape2Buds Genetics · ±53 daysAll B.C.G.A. →
BreederB.C.G.A.
Typeindica/sativa
Flowering time±53 days
EnvironmentOutdoors
LineageGrapefruit × Grapefruit x Blueberry
DescendantsBC Growers Association - Pink Grapefruit Cocktail, Reefermans Seeds - Grapefruit

🌱 Get Grapefruit Bx1 seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Grapefruit · Grapefruit x Blueberry · BC Growers Association - Pink Grapefruit Cocktail · Reefermans Seeds - Grapefruit

Ancestry Pedigree

Grapefruit
Clone Only Strains
Indica Sativa
Original Strains
Grapefruit x Blueberry
BC Growers Association
Grapefruit
Clone Only Strains
Blueberry
BC Growers Association
Blueberry Bud
Sagarmatha Seeds
Blueberry
DJ Short
Blueberry Line
Unknown or Legendary
Temple Flo
DJ Short
Floral Line
Unknown or Legendary
Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
HTAF
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary

Growing Grapefruit Bx1: what to expect

As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Grapefruit or Grapefruit x Blueberry 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 Bx1 FAQ

How long does Grapefruit Bx1 take to flower?

Grapefruit Bx1 typically flowers in around 53 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Grapefruit Bx1 an indica or a sativa?

Grapefruit Bx1 is listed as indica/sativa.

What are the parents of Grapefruit Bx1?

Grapefruit Bx1 was bred from Grapefruit × Grapefruit x Blueberry by B.C.G.A..

What environment does Grapefruit Bx1 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.

📷 Growing Grapefruit Bx1 and something looks off? Free AI photo diagnosis →

Facts compiled from public breeder listings. Growing Grapefruit Bx1? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

Suggest an edit for Grapefruit Bx1

Track your own grow free — the journal grades your environment against these bands →

Get the one-page grow reference card

VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.

Or just open the card now — no email needed →

Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.