Mammillaria matudae Bravo
Mammillaria matudae f. matudae, Mammillaria compacticaulis
Mammillaria matudae is a cactus with cylindrical stems, quite tidy in youth that tends to recline as it elongates, giving the old plant a characteristic sprawling habit. The stems are up to 12 inches (30 cm) long and up to 1.2 inches (3 cm) in diameter. It has 18 to 20 radial spines and one central spine per areole. The radial spines are very short, white with a yellowish base, while the central spine is up to 0.2 inches (0.5 cm) long, pointing upward, white to nearly black, becoming brownish or grayish with age. Flowers are brilliant pink to purplish-red and up to 0.5 inches (1.2 cm) long.
USDA hardiness zone 9b to 11b: from 25 °F (−3.9 °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. 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.
It is endemic to Mexico.
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