size of dasylirion - Knowledgebase Question

Riverbank, Ca
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Question by kate581
September 5, 2005
How tall and wide does Dasylirion longissimum grow to be? My belief is that it is an evergreen grass-like plant and not a perennial. Am I correct? The blades appear to be more stiff than a typical grass.

I am in USDA Zone 9 and would like to know if it grows well here.


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Answer from NGA
September 5, 2005
Dasylirion longissima (D. quadrangulatum) is also called the Mexican Grss Tree. The green leaves grow in a fountainlike clump, reaching about 5 feet high and wide. It is native to the deserts and mountains of the Southwest and Mexico and produces clumps of narrow, grassy leaves which spring from a woody base that can, with age, grow into a treelike trunk. It needs good drainage and is very drought tolerant. it should be a perennial in your southern California garden.

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