Trichocereus macrogonus (syn. Echinopsis macrogona) | Seeds
Trichocereus macrogonus (syn. Echinopsis macrogona) is a fast-growing columnar cactus from Bolivia, closely related to the better-known species Trichocereus bridgesii and Trichocereus pachanoi, but especially closely related to Trichocereus peruvianus (both macrogonus and peruvianus are currently ‘contending’ names, with many considering them synonymous).
Blue-green in colour, macrogonus grows to roughly three metres in height and ten centimetres in diameter and forms yellow-brown spines up to five centimetres long. Self-sterile, its white flowers appear at night and can grow to eighteen centimetres.
Like other columnar Trichocereus, the seeds of macrogonus require light and a minimum temperature of 25°C to 30°C in order to germinate and it’s consequently easy to grow indoors and outdoors in USDA Hardiness Zones 8-10. Averaging around twelve inches of new growth per year in an ideal climate, it can be easily propagated from seed or cuttings, requiring fertile, free-draining soil and regular watering. This is one of our favourites of the Trichocereus species – a very attractive and hardy plant!
All seed sold by Arkham’s Botanical was freshly and ethically sourced in 2018