CBD Critical Mass Seeds

Presented in the Outback Seed Bank catalogue, CBD Critical Mass is a feminised, CBD-rich option for growers seeking an indica-dominant plant with balanced cannabinoid figures. Its Critical Mass × CBD-rich cultivar lineage is listed at 80% indica and 20% sativa, with CBD and THC both reported in the 5–7% range. The variety suits intermediate growers who can manage humidity, plant support and a vigorous outdoor frame.

Genetics & effects

The aromatic profile blends citrus and fruit with earthy, herbal and woody notes. Myrcene, beta-caryophyllene and pinene are the principal listed terpenes, giving the flowers a layered character that may move between fresh, resinous and grounded impressions.

Individual experiences vary, but some people describe the effects as relaxed and uplifting, with talkative, creative or focused moments. Others report a stronger appetite. Setting, personal sensitivity and flower characteristics can all shape the subjective experience.

• Seed type: feminised
• Genetic balance: 80% indica, 20% sativa
• Listed cannabinoids: 5–7% CBD and 5–7% THC
• Difficulty: intermediate

Explore feminised seeds, cbd seeds, the Australian grow guide, and the planting calendar.

Explore feminised seeds, cbd seeds, the Australian grow guide, and the planting calendar.

Growing in Australia

CBD Critical Mass is suited to hot, dry and temperate conditions, although local weather differs considerably across Australia. Plan around rainfall, humidity and day length rather than relying on a single national schedule. Where cultivation is permitted, outdoor spring planting generally falls between September and November. Always check the rules that apply in your state or territory before germinating seeds.

Good airflow is important because dense floral growth can hold moisture. Allow enough space between plants, remove weak interior growth selectively and inspect crowded areas after rain. These steps can reduce the risk of mould as flowers gain weight.

Indoor

Indoors, plants may reach up to 110 cm. A flowering period of approximately eight to nine weeks makes the variety relatively quick, but its substantial blooms benefit from an even canopy and steady environmental control. Use soft ties, stakes or netting before branches become heavily loaded.

Under suitable conditions, indoor yield is listed at up to 550 g/m². This is an indicative ceiling rather than a guaranteed result; lighting, root space, nutrition, training and grower experience all influence the final amount. Explore more feminised seeds for other indoor options.

Outdoor

Outdoor plants can become vigorous and may reach up to 300 cm where warmth, sunlight and root space are plentiful. Choose a discreet, well-aerated position with strong support and practical access for regular inspection. Hot, dry conditions can suit this cultivar, while temperate sites may require closer attention as autumn moisture arrives.

Potential outdoor yield is listed at up to 1,200 g per plant in favourable conditions. Container size, soil quality, seasonal timing, pests, wind and rainfall can significantly change performance.

Harvest

Australian outdoor harvest commonly falls between March and May. Use flower maturity rather than the calendar alone to choose the cutting window, as latitude and planting time affect development. Harvest in stages if upper and lower flowers mature unevenly. After cutting, dry branches slowly in a dark, ventilated space, monitor humidity closely and condition the dried flowers in clean containers to preserve aroma, colour and texture.