Scientific Name
Mammillaria vetula subsp. gracilis 'Arizona Snowcap'
Synonym(s)
Mammillaria gracilis 'Arizona Snowcap'
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Subtribe: Cactinae
Genus: Mammillaria
Description
Mammillaria vetula subsp. gracilis 'Arizona Snowcap', also known as Mammillaria gracilis 'Arizona Snowcap', is a beautiful small cactus with dark green cylindrical stems almost entirely covered with short and thick white spines. It offsets profusely to form an attractive clump that can reach 4 inches (10 cm) in height and 5 inches (12.5 cm) in width. Stems are up to 3.2 inches (8 cm) long and 1.2 inches (3 cm) in diameter.
The flowers are creamy-yellow with pinkish or brownish mid stripes and appear in spring. They are up to 0.6 inches (1.5 cm) long and 0.5 inches (1.2 cm) in diameter.
Hardiness
USDA hardiness zones 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, Mammillaria feature raised tubercles, from which spines emerge. When you water, the tubercles expand to allow for increased water storage. The flowers appear from these tubercles' axils 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 fertilize during the growing season for the best results.
Repot as needed, preferably during the warm season. To repot Mammillaria, ensure the soil is dry before repotting, then gently remove the pot. Knock away the old soil from the roots, removing any rotted or dead roots. Treat any cuts with a fungicide. Place the plant in its new pot and backfill it with potting soil, spreading the roots as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot.
See more at How to Grow and Care for Mammillaria.
Origin
Mammillaria vetula subsp. gracilis 'Arizona Snowcap' is a beautiful mutation of Mammillaria vetula subsp. gracilis.
Links
- Back to genus Mammillaria
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus
Photo Gallery
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