Q
My room is quite humid, should I grow Grandpa Larry?
A
Yes, but fit a dehumidifier and improve airflow before you start.
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- Calm, resin-rich and reliable for growers who control humidity
Grandpa Larry
Feminised
Grandpa Larry is an indica-dominant hybrid known for dense, resinous buds and a calming, sedative effect.
Why choose Grandpa Larry?
- Dense, resinous buds
- Performs well with SCROG
- Needs strict humidity control
THC |
18-22% |
CBD |
0.2-0.8% |
Lineage |
Old Timer x Northern Lights |
Genotype |
Indica-dominant hybrid |
Difficulty |
Intermediate |
Flowering |
8-9 weeks |
Height |
Medium, 80-150 cm |
Yield |
Moderate to high (400-500g/m² indoors) |
Taste |
earthy, pine, citrus lemon |
Seed Type |
Feminised |
Climate |
humid indoor grow rooms |
Effects |
relaxed, sedative, mild euphoria |
Environment |
Indoor / Outdoor |
About Grandpa Larry
Grandpa Larry is an indica-dominant hybrid bred for robust resin production and a steady, physical high. It suits growers prepared to manage humidity and airflow to protect dense buds.
Grow Difficulty:
Growing Grandpa Larry in humid indoor grow rooms requires attentive ventilation and humidity control. Plants respond well to training but can be vulnerable to bud rot if airflow is poor.
Flowering Time:
Flowering normally completes in eight to nine weeks. In Norfolk growers can expect thick trichome development and solid bud set by week nine.
Yield:
Yield is moderate to high when light and training are optimised. Indoors you can expect around 400–500g per square metre under good conditions.
Height:
Plants remain medium in stature with a sturdy central cola and lateral branching. Typical indoor height is 80–150 cm while outdoors they can push taller with good soil.
Environment:
Indoors, Norfolk growers should focus on ventilation, humidity control and SCROG or topping to maximise bud sites in limited space. Outdoors, Norfolk plants can finish well but will need drier late-season weather to avoid rot.
Climate:
Growing Grandpa Larry in Norfolk with humid indoor grow rooms demands strict moisture control and regular mould inspections. In Norfolk conditions keep dehumidifiers running and maintain strong airflow to protect buds and ensure even ripening.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
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Choose seed quantity
Selected:
5 Seeds
£8.00 / seed • You save £13.33
100% Satisfaction Guarantee • Secured Payments