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GrandDaddy Purple Feminised Seeds-BFS-GRDP-FEM
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GrandDaddy Purple Feminised Seeds-BFS-GRDP-FEMGrandDaddy Purple Feminised Seeds-BFS-GRDP-FEM
GrandDaddy Purple strain from Barney's Farm
Seeds

GrandDaddy Purple Feminised Seeds

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SKU: BFS-GRDP-FEM
Barney's GrandDaddy Purple, a famed 70% indica strain with iconic California genetics.

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Flowering Type

Photoperiod

Parental lines

Purple Urkle x Big Bud

THC content
Information not available
CBD content
Information not available

Photoperiod flowering time

8 to 10 weeks

Yield indoor

High Yield (450-600gr/m2)

Plant size
Information not available
Suitable climates
Information not available

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From the breeder
Barney's GrandDaddy Purple, a famed 70% indica strain with iconic California genetics.
Barney's Farm breeder notes
Aroma
EarthyFruityHerbalSweet
Effect description
Relaxing
Parental lines
Purple UrkleBig Bud
Barney's GrandDaddy Purple, a famed 70% indica strain with iconic California genetics.

GrandDaddy Purple by Barney’s Farm is a 70% indica / 30% sativa feminized classic bred from Purple Urkle x Big Bud, combining iconic California purple genetics with the size, density, and yield potential that made it a standout from the start. Short, bushy, and unmistakably indica in structure, it produces large, rounded, resin-coated buds in deep purple and violet tones, set against dark green foliage and bright orange hairs for the kind of dramatic bag appeal that made GrandDaddy Purple a legend. Its terpene profile is rich and instantly recognisable, led by sweet grape, juicy berries, and earthy depth, with subtle pungent and herbal undertones that give the profile extra weight. On the palate, it stays smooth, full-bodied, and candy-like, leaving behind the lingering grape sweetness that defines a true purple indica.

With THC levels of 25%, GrandDaddy Purple delivers the deeply relaxing, euphoric body high that has kept it at the top of evening-smoking lineups for years. The effect settles in with a dreamy mental lift before spreading into full-body calm, making it especially well suited to switching off, easing stress, and sinking into serious comfort. Flowering in around 55-65 days, plants stay compact indoors at around 100 cm and can yield up to 600 g/m2, while outdoor plants may reach 180 cm and produce as much as 1000 g per plant by the second to third week of October. Responsive to LST and topping, but worth watching closely for humidity late in bloom due to its dense flower structure, GrandDaddy Purple remains a standout choice for growers seeking heavy resin, bold purple colour, and one of the most famous grape-forward indicas ever created.

Brand/breeder
Parental lines
Purple Urkle x Big Bud
Variety
Indica dominant
Flowering type
Photoperiod
Sex
Feminised
Yield outdoor
Very High Yield (above 750gr/plant)
Yield indoor
High Yield (450-600gr/m2)
Photoperiod flowering time
8 to 10 weeks
Northern hemisphere harvest
October
Southern hemisphere harvest
April
Aroma
Earthy, Fruity, Herbal, Sweet
SKU
BFS-GRDP-FEM

Photoperiod outdoor timeline

Photoperiod strains rely on seasonal daylight changes, so harvest timing is closely tied to your local climate.

Stage 1
Germination / Early Start
March – April
Wait for: frost risk easing, stronger spring light
Watch for: cold snaps, slow starts, excess moisture
Stage 2
Seedling / Transplant
April – May
Wait for: milder nights and settled weather
Watch for: transplant shock, wind exposure, pests
Stage 3
Vegetative Growth
June – July
Wait for: long days, regular feeding, healthy expansion
Watch for: overcrowding, nutrient issues, insect damage
Stage 4
Flowering
August – September
Wait for: shortening days, dry airflow, branch support
Watch for: mould, botrytis, high humidity, bad weather
Stage 5
Harvest
Late September – October
Wait for: ripe trichomes, dense finished flowers
Watch for: autumn rain, rot, early frosts
Photoperiod strains rely on seasonal daylight changes, so harvest timing is closely tied to your local climate.

Indoor photoperiod timeline

Photoperiod strains give indoor growers more control over size, shape, and when flowering begins.

Week 0
Germination
Strong early establishment
Wait for: strong early establishment
Watch for: inconsistent starts, excess moisture
Week 1–2
Seedling
Stable structure and healthy growth
Wait for: stable structure and healthy growth
Watch for: stretch, early stress
Week 3–6+
Vegetative Growth
Desired plant size and canopy shape
Wait for: desired plant size and canopy shape
Watch for: overcrowding, uneven growth, training stress
7–12+ weeks
Flowering Phase
Strong flower formation and steady development
Wait for: strong flower formation and steady development
Watch for: humidity, airflow, support issues
Harvest
Harvest Window
Finished flowers and mature trichomes
Wait for: finished flowers and mature trichomes
Watch for: cutting too early or pushing too long
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GrandDaddy Purple Feminised Seeds

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