Q
What's my biggest risk growing Critical Mass in London?
A
Mould from humidity is the top risk; keep airflow and reduce leaf wetness, especially during flower.
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- Heavy buds, dependable finish, tailored for sheltered grows
Critical Mass
Feminised
Critical Mass is an indica-dominant strain prized for heavy, compact buds and strong relaxing effects.
Why choose Critical Mass?
- Dense, fast-finishing buds that reward good ventilation
- Reliable indica effects ideal for evening relief
- Performs well in controlled greenhouse environments
THC |
18-22% |
CBD |
<1% |
Lineage |
Afghani x Skunk |
Genotype |
Indica-dominant |
Difficulty |
Intermediate |
Flowering |
7-9 weeks |
Height |
Short to medium; typically 0.8–1.5 m outdoors |
Yield |
High (up to 500 g/m² indoors; robust outdoor yield in sheltered sites) |
Taste |
Earthy, Sweet citrus, Spicy musk |
Seed Type |
Feminised |
Climate |
Damp coastal |
Effects |
Deep relaxation, Sedative body high, Mild euphoria |
Environment |
Indoor and outdoor |
About Critical Mass
Critical Mass is an indica-dominant variety bred from Afghani and Skunk parentage that produces dense, resinous flowers and a pronounced body high. It flowers quickly, yields well when trained and ventilated, and suits growers who can manage humidity in cooler, damp coastal climates like parts of London.
Grow Difficulty:
Growing Critical Mass requires intermediate skills to manage dense foliage and heavy buds in a damp coastal climate. Vigilant pruning and enhanced airflow are necessary to prevent mould in humid conditions.
Flowering Time:
Flowering completes in roughly seven to nine weeks under stable conditions. Outdoor crops in the UK usually finish around late September to early October.
Yield:
Yield is generous for its stature and rewards careful training and ventilation. In London greenhouse setups it can reach strong per-metre yields with consistent maintenance.
Height:
Plants stay short to medium with a stocky, bushy habit. In a greenhouse in London they commonly reach about one metre with dense central colas.
Environment:
Indoors, Critical Mass responds well to controlled light cycles and screen or low-stress training. Outdoors in London it prefers a sheltered, sun-facing spot or a greenhouse to mitigate cool, damp evenings.
Climate:
Growing Critical Mass in London requires attention to the city's damp coastal climate. Use a ventilated greenhouse or dehumidification to reduce mould risk and maintain stable temperatures.
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