Mamba Negra CBD Seeds

Mamba Negra CBD is a feminised, CBD-rich cultivar presented in the Kiwi Seed Bank catalogue. It combines Critical Mass, Skunk and Painkiller XL genetics in an evenly balanced 50% sativa and 50% indica profile. With a reported 10–20% CBD and 0–1% THC, it is aimed at growers seeking a low-THC option with generous potential yields and a layered flavour profile.

Genetics & effects

This three-way cross brings together robust growth, productive flowering and aromatic depth. Myrcene, caryophyllene, pinene and limonene contribute earthy, sweet and floral notes, complemented by berry, pine and a touch of lime.

Individual experiences vary. Some people may describe Mamba Negra CBD as relaxed and calming, while others notice an uplifting or creative mood before a sleepier finish. Setting, personal sensitivity and the finished flower can all influence the subjective experience.

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

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

Growing in New Zealand

Mamba Negra CBD is considered an intermediate-level cultivar. Its 8–10 week flowering period can work across hot, dry, temperate and cooler short-season conditions, provided moisture, airflow and timing are managed carefully. In New Zealand, outdoor planting commonly begins during spring, from September to November. Local temperatures differ considerably, so growers should respond to their own microclimate rather than relying on the calendar alone.

Choose a bright position with free-draining growing media and protection from persistent wind. Regular observation is especially useful as flowers gain weight. Keep foliage open enough for air movement, avoid prolonged dampness around buds and support heavily loaded branches where needed to reduce the risk of mould or breakage.

Indoor

Indoors, plants may reach up to 170 cm, making early canopy planning worthwhile. Training and selective pruning can help distribute light across the balanced branching structure. Maintain stable airflow and humidity, particularly during late flowering when dense buds can hold moisture.

Under favourable conditions, the stated indoor yield is up to 550 g/m². This is a potential figure rather than an assured outcome; lighting, root space, plant health, environment and grower experience all have a significant influence.

Outdoor

Outdoor plants may grow up to 210 cm and can develop broad, productive frames when given ample sun and root room. Up to 700 g per plant is listed as potential output in suitable conditions. Sheltered northern aspects may suit cooler locations, while warmer regions can benefit from attention to irrigation and afternoon heat.

Spring planting from September to November gives plants time to establish before flowering. In wetter districts, spacing, branch support and good air movement become especially important as autumn approaches.

Harvest

Following an 8–10 week flowering phase, New Zealand outdoor harvest generally falls between March and May. Exact timing depends on planting date, latitude, seasonal weather and flower maturity. Monitor colour changes, aroma and overall plant development, and plan for a dry harvesting window where possible. Finished flowers may express earthy sweetness, floral berry notes, fresh pine and a bright lime edge, creating a complex profile for growers who favour aromatic CBD-rich cultivars.