Trichocereus pachanoi cv. ‘Las Niñas’ | ‘San Pedro’ | Live plant

‘Las Niñas’ is a really eye-catching Trichocereus pachanoi cultivar, reportedly cultivated in Spain’s Murcia region for at least forty years now. Live plant.

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Trichocereus pachanoi cv. ‘Las Niñas’ | ‘San Pedro’ | Live plant

(syn. Echinopsis pachanoi, Trichocereus macrogonus subsp. pachanoi)

Trichocereus pachanoi ‘Las Niñas’ is a distinctive Spanish clone with an interesting heritage. What can we say? There’s something about this particular ‘San Pedro’ which really grabs us! Available from our shop as well-rooted cacti, propagated from our original mother plants.

We originally bought our ‘Las Niñas’ as unrooted cuttings from the lovely Paula and Ricardo, in Murcia, who inform us that their plant in turn came from a ninety-two-year-old neighbour, who himself reports planting his original cactus approximately forty years ago. Although the trail ends here, as this neighbour no longer recalls where his own plant derives from, it is tantalising that he believes this curious strain to be “local plants” (and hence, presumably, much older than his own specimen).

Whatever this excellent Trichocereus pachanoi (syn. Echinopsis pachanoi, Trichocereus macrogonus subsp. pachanoi) variety’s historical provenance, it’s definitely an ultra-cool example of the species! Tending toward a gorgeous, glaucus blue-green in colour, Trichocereus pachanoi ‘Las Niñas’ displays deep, vee-shaped notches at the areoles (which bear rather short – often twin – spines), creating an eye-catching appearance when viewed in profile and from above. Personally, we think this clone shares some physical similarities with another excellent pachanoi we grow, Chavin Herbalist’s ‘Horace the Timekeeper’ (which – at the time of writing – we’re intending to start propagating for wider distribution over the next few years).

As a species generally, pachanoi is a vigorous, relatively hardy columnar cactus from the Andean mountain regions of Ecuador and Peru. First collected from Ecuador’s Chan Chan Valley, these cacti are now also common to areas of Argentina, Bolivia and Chile, where they prefer habitats at approximately two-thousand-metres to three-thousand-metres / six-thousand-six-hundred-feet to nine-thousand-eight-hundred-feet above sea level. Such plants range on a spectrum of light-green to glaucus to dark-green, typically reaching a mature height of roughly six metres / twenty feet, with each stem branching from the plant’s base (and usually any cut or snapped areas too) and growing to a maximum diameter of approximately twenty centimetres / eight inches. Spination can vary greatly due to a number of factors (including genetics and environmental conditions, such as the amount of available light), but is usually no more than roughly two-and-a-half centimetres / one inch in length. Fantastic, white-to-whitish flowers bloom for a brief time only, and then mostly during the night-time hours (a trait shared by many Trichocereus species). These flowers reach too approximately twenty-one centimetres / eight inches in diameter and twenty-five centimetres / ten inches long. Green, globose fruits grow to a diameter of about seven centimetres / three inches.

‘San Pedro’ has proven useful to mankind for several thousand years now, as an ornamental and in religious rituals and traditional human and veterinary medicine. Other informal names for the species include ‘Achuma’, ‘Aguacolla’, ‘Giganton’, ‘Hahuacollay’, ‘Huachuma’, ‘San Pedro’ and ‘Wachuma’. It’s really easy to grow! Simply plant it in a well-drained soil mix (we use equal parts soil and perlite ourselves), provide full sun to light shade, and water whenever the top layer of soil dries out – but only during the growing season (cacti enter dormancy during the winter months). Fertilise moderately a few times each season and avoid sustained frosts (especially if the soil is also wet due to rain and such) and Trichocereus pachanoi ‘Las Niñas’ will remain part of your collection for many years to come!

Product Details

Product Type

Live plant


1 rooted plant


~23 cm tall

Common Name

San Pedro








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