Cryosophila nana

Dwarf Rootspine Palm

Country Of Origin: Mexico

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About Cryosophila nana

This is a solitary, nearly trunkless palm that typically grows with its stem remaining subterranean or just barely emerging above the soil surface. When visible, the short stem is covered with the characteristic spiny adventitious roots that define the genus Cryosophila, forming a protective lattice around the trunk. The crown consists of several rigid palmate leaves that are divided into numerous narrow segments radiating from the petiole, giving the foliage a fan-like appearance. The leaves are deep green above with a paler underside, and the petioles may bear small marginal spines. Inflorescences emerge among the leaves and branch into multiple slender rachillae bearing small pale flowers. The palm later produces rounded fruits that ripen to dark purple or black.

Climate Zone 10b
Min Temp (F/C) 35 to 40 F / 2 to 4 C
Leaf Type Costapalmate
Height 6 Ft / 2 M
Growth Rate Slow
Conservation Status
Least Concern
Habit Solitary
Soil pH 6.0-6.9 (Near neutral)
Soil Type Loamy

Cultivation Tips

Plant in a protected garden location with partial shade, similar to the forest margins and understory habitats where it naturally occurs. Young plants prefer shade while mature specimens can tolerate filtered sunlight but should be protected from intense midday sun. The species prefers well-draining soils rich in organic matter, though it can tolerate a range of soil types provided drainage is good. Regular watering is beneficial, especially during warm weather, as the palm performs best when the soil remains consistently moist but never waterlogged. Apply a balanced palm fertilizer two to three times per year during the growing season to encourage steady leaf production and overall plant health.

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