Start here
Growing from seed
Germination, moisture, light, ventilation and the transition out of high humidity.
Growing in New Zealand
Grow with confidence.
Practical Trichocereus cultivation information with New Zealand seasons, winter conditions and Christchurch experience kept in view.
New Zealand
Growing in a cool climate
Seasonal growth, winter dormancy, shelter, rainfall and the practical implications of Christchurch conditions.
Propagation
Cuttings and callusing
When to cut, how to callus, rooting approaches and the factors that increase rot risk.
Maintenance
Repotting and soil
Container size, drainage, mineral content, organic matter and recognising when a plant needs more root space.
Breeding
Flowers and pollination
Flowering, pollen handling, cross records and how NZG seed codes connect to documented parent plants.
Diagnosis
Common growing problems
Environmental stress, pests, rot and other recurring problems seen in cultivated cacti.
New Zealand conditions
Seasonal advice matters.
Growing conditions differ from warmer cactus climates. Permanent subject pages make it easier to keep advice organised around the practical questions growers face here.