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Grandpa's Cookies R2 V1 Feminized Seeds-ETHO-GRCOR2V1-FEM
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Grandpa's Cookies R2 V1 Feminized Seeds-ETHO-GRCOR2V1-FEMGrandpa's Cookies R2 V1 Feminized Seeds-ETHO-GRCOR2V1-FEM
Grandpa's Cookies R2 V1 strain by Ethos Genetics
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Grandpa's Cookies R2 V1 Feminized Seeds

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SKU: ETHO-GRCOR2V1-FEM
High-performance hybrid strain Grandpa's Cookies R2 V1 boasts high yield.

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Flowering Type

Photoperiod

Parental lines

Grandpa’s Cookies #11 x Grandpa’s Cookies #6

THC content
Information not available
CBD content
Information not available

Photoperiod flowering time

8 to 10 weeks

Yield indoor
Information not available
Plant size
Information not available
Suitable climates
Information not available

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From the breeder
High-performance hybrid strain Grandpa's Cookies R2 V1 boasts high yield.
Ethos Genetics breeder notes
Aroma
CitrusSpicyWoody
Parental lines
Grandpa’s Cookies #11Grandpa’s Cookies #6
High-performance hybrid strain Grandpa's Cookies R2 V1 boasts high yield.

Grandpa’s Cookies R2 V1 from Ethos Genetics is a refined, high-performance hybrid built from Grandpa’s Cookies #11 x Grandpa’s Cookies #6, delivering a powerful combination of yield, resin production, and terpene depth. This feminized photoperiod strain is designed for growers seeking monster yields, fast turnaround, and top-tier flower quality, with TAC levels reaching 25–30% and a structure built for heavy production.

The terpene profile is rich and complex, blending sandalwood and warm spice with bright citrus peel notes, creating a layered aroma that stands out from typical dessert-heavy profiles. Buds are large, dense, and extremely resinous, with a high bract-to-leaf ratio that makes for easy trimming and excellent bag appeal. The heavy trichome coverage also makes this cultivar a strong candidate for hash and solventless extraction, delivering both quality and return.

In cultivation, Grandpa’s Cookies R2 V1 is a vigorous, high-yielding plant that thrives in both indoor and outdoor environments. Expect a flowering time of 56–63 days, with stacked branching and chunky flower development across the canopy. Easy to grow and highly productive, this strain combines speed, structure, and resin output, making it an ideal choice for growers looking for reliable performance and premium results at scale.

Brand/breeder
Ethos Genetics
Parental lines
Grandpa’s Cookies #11 x Grandpa’s Cookies #6
Flowering type
Photoperiod
Sex
Feminised
Photoperiod flowering time
8 to 10 weeks
Aroma
Citrus, Spicy, Woody
SKU
ETHO-GRCOR2V1-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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Grandpa's Cookies R2 V1 Feminized Seeds

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