Pincushioncactuscare is very simple and suitable for the beginning gardener. Cactus plants are used to dry conditions and limited fertility. The PincushionCactus: Care and Propagation Guide. The pincushioncactus is a member of the Mammillaria genus comprising over 200 species. Caryophyllales. How to care for PincushionCactus. Water Light Nutrients. Mammillaria spinosissima, also known as spiny pincushioncactus, is a species of flowering plant in the cactus family Cactaceae, endemic to the centralHow to Care for the Plant. Water. Soil Spiny pincushioncactuscare tip in respect of soil is to use a typical cactus potting mix with 20% sand. The ground should be well-draining so that it is dry between waterings. Pincushioncactus (*Mammillaria crinita*) is a flowering cactus native to Mexico. Pincushioncactus is often grown for ornamental purposes as a houseplant. About this cactus. PincushionCactus (mammillaria spinosissima) – Silver star shaped, thick, spines swirl around an emerald green oval.INCLUDES. One Plant. CACTUSCARE. What makes the PincushionCactus special is its ability to thrive in harsh conditions while requiring minimal care. The PincushionCactus is easy to care for an has such a unique look. They make a great addition to any cactus collection. PincushionCactusCare and Propagation. The best way to propagate Mammillaria spp. is by stem cuttings. Carefully remove a healthy stem from the mother plant, just below a node.