Yavia is one of the most recently described genera in the Cactus family. It is a monotypic genus named after Argentina's department Yavi in Jujuy Province, where the only species in the genus, Yavia cryptocarpa, is endemic to sparsely vegetated rocky slopes. The specific epithet "cryptocarpa" refers to the plant being a cryptocarp, which means that the fruits are formed inside the plant's body, thus only visible when the plant shrinks in the drought period. It is a very mimetic plant that takes the color of the surrounding rocks.
Yavia cryptocarpa is a small globular cactus that consists primarily of a single stem but may clump, especially when grafted. Ribs are present but hardly noticeable beyond the rows of fuzzy-white areoles with tiny reddish-brown spines. The flowers are pink with a short, thick floral tube.
Despite the recent discovery of this species, it is rapidly propagated by enthusiasts, becoming increasingly available each year.
Growing Conditions and General Care
Yavia cryptocarpa thrives in bright light but should be shielded from direct sunlight. The risk of sunburn increases, particularly during the hottest hours of summer days.
This cactus is very susceptible to rot and therefore requires well-draining soil. Use a potting mix labeled for cacti or succulents.
Water during the growing period, and let the soil dry out between waterings. Keep the soil dry as soon as the temperature drops, and maintain complete dryness in winter temperatures between 40°F and 60°F (4.4°C to 15°C).
Yavia cryptocarpa should be kept in a cool place during winter rest and can tolerate sporadic frost if kept on the dry side before and during cold weather, with little danger of being killed. However, it is best not to expose it to temperatures lower than 40 °F (4.4 °C) during cultivation, even in an aerated and protected location.
This cactus is a slow-growing plant and does not require much fertilizer. Just a couple of times per year will do. But if you want to fertilize your cactus regularly, do so in spring and summer.
Repotting
Repot as needed, preferably during the warm season. Ensure the soil is dry before repotting, then gently remove the pot from the plant.
Propagation
Yavia cryptocarpa is usually propagated by seed. It is often grafted to accelerate growth, as they would generally take at least a decade to reach maturity on their own.
Links
- Back to genus Yavia
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus