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Critical Mass – Advanced Seeds

Critical Mass by Advanced Seeds is a powerful, high-producing feminised hybrid renowned for its robust growth, exceptional resin output and sweet, aromatic buds. Built to handle a variety of growing conditions, this strain develops large, compact flowers rich in THC, making it a favourite among growers seeking reliability, potency and impressive harvests.

Strain Information:
Strain Name: Critical Mass
Strain Breeder: Advanced Seeds
Lineage: Afghan × Skunk #1
Genetics: Indica / Sativa hybrid
Seed Type: Feminised
Flowering Type: Photoperiod
Flowering Time: 9–10 weeks indoors
Effect: Strong body and mind relaxation with a balanced high
Aroma: Sweet and rich
Taste: Sweet, smooth and pleasant
Height: Indoors 90–100 cm; outdoors 120–140 cm
Yield: 550–650 g/m²
THC: 22%

Strain Description:
Critical Mass from Advanced Seeds is a vigorous, fast-developing hybrid capable of producing enormous, resin-heavy buds even in less-than-ideal conditions. Its Afghan and Skunk roots provide strength, stability and impressive density, resulting in flowers that are hard, brightly coated with trichomes and intensely aromatic. With THC levels reaching 22%, the effect is powerful yet balanced, offering deep physical relaxation alongside a calm, steady mental buzz. The sweet, smooth flavour makes every session enjoyable and satisfying.

Growing Information:
This strain thrives in a wide variety of growing environments. Indoors, Critical Mass maintains a manageable height of 90–100 cm while producing thick branches loaded with heavy buds. Outdoors, it grows slightly taller and performs exceptionally well under full sun. Its resilience makes it suitable for both experienced growers and beginners, and its impressive calyx-to-leaf ratio simplifies trimming. Thanks to its Skunk heritage, it resists adverse climates and still produces abundant yields of 550–650 g/m².

Strain Flavour and Aromas:
Critical Mass is defined by its sweet, rich aroma and smooth, sugary flavour. The terpene profile leans heavily toward sweet and resinous notes, creating a pleasant and enjoyable experience both during cultivation and consumption. The flavour lingers on the palate, making it a favourite among growers who prefer sweet, dessert-style strains.

Strain Lineage:
A cross between Afghan and Skunk #1, Critical Mass inherits the best traits of both classics. Afghan contributes resin production, density and strong physical effects, while Skunk #1 adds aromatic sweetness, hybrid balance and heavy yields. Together, they create a strain that is exceptionally productive, sweet-scented and easy to manage.

Strain Summary:
Critical Mass by Advanced Seeds is a high-yielding, sweet-flavoured feminised hybrid boasting 22% THC, dense resinous buds and strong growth characteristics. Flowering in 9–10 weeks, it offers growers reliability, potency and exceptional harvests, making it an ideal choice for those seeking a resilient and flavourful production strain.

Critical Mass Feminised by Advanced Seeds

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  • Free Seed Promotion

    With our Free Seed Promotion, you’ll receive 2 free seeds for every £10 spent—1 feminised seed and 1 regular seed.

    We also round up to the nearest £10, so if you spend £18, we’ll count it as £20, meaning you’ll receive 4 free seeds instead of 2!

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