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Helictotrichon sempervirens Blue Oat Grass This evergreen, clumping blue oat grass is noted for its bright metallic blue foliage and neat appearance. It forms a spiky mound 1 to 1 1/2 foot round. Bluish white flowers turn golden wheat with age. Prefers good drainage, full sun, and low water. Good accent with perennials like lavender. Hardy to -20°F. Plants A-B | C-D | E-H | I-L | M-R | S-Z |
