Lophophora fricii Haberm.
This species is endemic to Mexico (around the lagoon near Viesca in Coahuila).
Lophophora fricii, also known as Lophophora williamsii var. fricii, is a small, slow-growing cactus with pale grey-green to yellow-green stems that grow from a large taproot. The stems are spherical, spineless, usually lacking well-defined ribs and furrows, and with tufts of hairs that usually spread irregularly on the prominent podaria. Flowers are pale to dark pink and up to 1.6 inches (4 cm) in diameter.
USDA hardiness zones 9b to 11b: from 25 °F (−3.9 °C) to 50 °F (+10 °C).
How to Grow and Care
Lophophora is more tolerant of soil types than its relatives and typically grows in areas with decomposed limestone present in the soil. In cultivation, Lophophora does best in a fast-draining, mineral-based soil, which is about 2/3 sand.
Abundant water is beneficial in the summer months when the temperatures are over 90 °F (32 °C) and exposed to full sunlight for maximum growth. However, it must be allowed to dry out completely between waterings.
They should also be fertilized twice a year. Over-fertilizing will typically result in the Lophophora developing cracks and splitting.
At times, some Lophophoras will develop a corky material on the plant body if exposed to pesticides or insecticidal soap. This corky condition will usually heal similarly to human skin if the plants are exposed to full sunlight.
Lophophoras are free flowering in cultivation, and although they can withstand low temperatures during winter, they do not require a cold shock to initiate flowering.
Learn more at How to Grow and Care for Lophophora.
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