Mammillaria lenta K. Brandegee
Chilita lenta, Escobariopsis lenta, Neomammillaria lenta
Mammillaria lenta is a slow-growing cactus that branches from the base to form quite large flat-topped mounds. The stems are bright green to yellow-green and almost hidden by the delicate white spines. They are up to 1.2 inches (3 cm) tall and 4 inches (10 cm) in diameter. Flowers are pure white with a purplish-pink stripe, up to 0.8 inches (2 cm) long and 1 inch (2.5 cm) in diameter.
USDA hardiness zone 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).
How to Grow and Care
To encourage better flowering, allow the plants to enjoy a cooling period in the winter and suspend watering. Unlike many other cacti, which use their ribs as storage devices, the Mammillaria feature raised tubercles, from which spines emerge. When you water, the tubercles will expand to allow for increased water storage. The flowers emerge from the axils of these tubercles on the previous year's growth, which accounts for their interesting halo effect. The cactus mustn't be exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. Lastly, make sure to fertilizer during the growing season for the best results.
Repot as needed, preferably during the warm season. To repot a cactus, make sure the soil is dry before repotting, then gently remove the pot. Next, knock away the old soil from the roots, making sure to remove any rotted or dead roots in the process.
See more at How to Grow and Care for Mammillaria.
This species is native to Mexico.
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