HARDY PLANTS OF THE BLUE RIDGE MOUNTAINS 
31 
HARDY NATIVE HERBACEOUS PERENNIALS, continued 
VERONICA virginica. Culver’s Physic. Showy; 2 to 4 feet in 
height with long spikes of white flowers in midsum¬ 
mer. Strong . 
VIOLA blanda. Sweet White Violet Height 2 to 4 inches 
Fragrant white flowers in early spring. X strong. . . 
canadensis. Canada Violet. Whitish flowers, tinged with 
purple. X strong . 
cucullata. Blue Marsh Violet. Height 6 to 10 inches. Blue 
flowers all summer. X strong . 
pedata. Bird’s-foot Violet. Height 3 to 7 inches. Showy 
blue flowers in May. First size. 
Second size. 
pedata bicolor. Two-color Bird’s-foot Violet. Height 4 to 
6 inches. Velvety light blue and purple pansy-like 
flowers in May. Rare and beautiful. First size. 
Second size . 
rotundifolia. Round-leaf Violet. Height 3 to 4 inches. 
Large yellow flowers in early spring. Large prostrate 
shining leaves. Strong. 
sagittata. Arrowleaf Violet. Height 4 to 8 inches. Deep 
blue flowers in May. Strong. 
XEROPHYLLUM asphodeloides. Turkey’s Beard. Height 3 
to 5 feet. Long grass-like leaves. Tall spikes of very 
attractive white flowers. Rock-garden subject. 
Strong. 
YUCCA filamentosa. Common Yucca. Height 3 to 8 feet. 
Large panicles of white flowers in July and August. 
Strong, 2-year. 
flaccida. Weak-leaf Yucca. Height 2 to 5 feet. Stiff narrow 
leaves. White flowers in June and July. 
Strong, 3-year. 
gloriosa (patens). Moundlily Yucca. Noble plant with 
flower-spike 8 feet high. Blooms rusty white or 
reddish. X strong. 
ZYGADENUS muscaetoxicum. Crow-poison. Long grass-like 
leaves with attractive spikes of showy white flowers 
in early spring. X strong . 
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$90 
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70 
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70 
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6 
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7 
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60 
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35 
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9 
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80 
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85 
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130 
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18 
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170 
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20 
8 
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70 
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