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The
Echinopsis lateritia complex
comprises a large number of infraspecific
taxa, differing in various combinations of flower colour, spine
colour, number and thickness of central spines, and other characters.
The taxonomic and geographic boundaries among the segregate species or
infraspecific taxa of E. lateritia remain nebulous and
controversial. In no place do pure populations exist
sympatrically, and all taxa appear completely interfertile.
Cultivation: It is a summer grower
species that offers no cultivation difficulties.
Water regularly in summer (but do not overwater )
Needs a large pot to accommodate a large root system.
Use a very draining and porous substrate,
keep rather dry in winter.
It is quite frost resistant if kept dry (hardy to -5° C)
Outside full sun or afternoon shade, inside needs bright light, and some
direct sun.

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