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Dasylirion longissimum

Mexican Grass Tree
Agavaceae
Evergreen, Shrubs

DASYLIRION

Native to deserts and mountains of the Southwest and Mexico. Clumps of narrow, grassy leaves spring from a woody base that can, with age, grow into a treelike trunk. Tiny flowers are tightly clustered on a tall, narrow spike. Provide good drainage. Very drought tolerant, but some irrigation will speed growth. Definitely needs summer water in low desert Zone 13.

Dasylirion longissimum

Smooth-edged green leaves in fountainlike clump to about 5 ft. high and wide. Trunk is slow to form, but may reach 10 ft. tall. Eventually bears white to cream-colored flowers in early summer.

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