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Arundo donax
Arundo donax

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Zone
Zones 3-35, 39
Full Sun
Full
Ample WaterRegular Water
Ample, Moderate

Arundo donax

Giant Reed
Poaceae (Gramineae)
Ornamental grasses and grasslike plants

Native to the Mediterranean region. Once valued for its bold effect in garden fringes and near water and for use as a fast-growing windbreak. Now, however, it has run wild in many areas, particularly in mild-winter parts of California, clogging waterways, supplanting the native waterside trees and shrubs, and even damaging bridges. Grows as tall as 30 ft., with 2-ft.-long leaves; spreads by thick rhizomes. Particularly rampant in areas where the flower clusters set fertile seeds, such as Southern California. Even where it is less invasive, its size makes it difficult to dig out or divide. In cold climates, it may die back in winter.

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