Aloe petricola Pole-Evans
Stone Aloe, Rock Aloe
Aloe petricola is a solitary or sparsely clustering succulent that forms stemless rosettes of long triangular blue-gray leaves that curve up and then inwards, giving the plant a ball-like form. The rosettes grow up to 2 feet (60 cm) tall and up to 3 feet (90 cm) in diameter. Leaves occasionally have very small teeth on the upper surface, with usually more on the lower and sharp brown teeth along the margins. In mid to late winter appear the distinctly bicolored flowers, reddish-orange in the bud, opening to cream to pale yellow with faint green striped petals and dark brownish anthers, all densely stacked on the stems and opening from bottom to the top. On younger plants, the flowers are on a tall, unbranched inflorescence but are typically on multiple-branched inflorescences on older plants.
USDA hardiness zone 9b to 11b: from 25 °F (−3.9 °C) to 50 °F (+10 °C).
How to Grow and Care
Aloe is a very forgiving plant, and a well-grown plant can be quite beautiful. However, as with all succulents, Aloe must never be allowed to sit in stagnant water, and the plant should be carefully monitored to watch for signs of overwatering. Water generously in the summer and nearly cease watering in the winter. Do not let water stand in the rosettes.
Aloes are not particularly fast-growing and will only rarely need repotting. Repot plants in the spring that are tipping over their pots or have ceased growing. Use a fast-draining potting mix with one-third sand or pebbles. During repotting of a larger plant, it is possible to carefully divide the root ball. Some kinds of Aloe will send off off-sets that can be potted independently.
See more at How to Grow and Care for Aloe.
Native to South Africa (Mpumalanga).
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