HARDY PLANTS OF THE BLUE RIDGE MOUNTAINS 
7 
HARDY NATIVE HERBACEOUS PERENNIALS, 
THERMOPSIS caroliniana. Carolina Thermopsis. Grows 
3 to 5 feet high. Yellow flowers in terminal racemes 
in May and June. Very showy for massing. 
X strong clumps.. $2 
Strong seedlings. 
TIARELLA cordifolia. Allegheny Foam Flower. Height about 
10 inches. White flowers in May or June. Strong.. i 
TRADESCANTIA virginiana (montana). Virginia Spiderwort. 
Ribbon-like foliage and showy blue flowers. Strong, i 
UVULARIA grandiflora. Big Merrybells. Largest species 
with bright yellow flowers. Strong. i 
perfoliata. Wood Merrybells. Height 6 to 18 inches. Pale 
yellow flowers in early spring. Strong. i 
sessilifolia. Little Merrybells. Height lo to 20 inches. 
Yellow flowers in May. Strong. i 
VERONICA virginica. Culver’s-Physic. Showy; 2 to 4 feet in 
height with long spikes of white flowers in midsum¬ 
mer. Strong. I 
VIOLA blanda. Sweet White Violet. Height 2 to 4 inches. 
Fragrant white flowers in early spring. X strong. .. i 
canadensis. Canada Violet. Whitish flowers, tinged with 
purple. X strong. i 
cucullata. Blue Marsh Violet. Height 6 to 10 inches. Blue 
flowers all summer. X strong. i 
hastata. Halberd-leaved Yellow Violet. Long rootstock. 
Creeping. Strong. i 
pedata. Bird’s-foot Violet. Height 3 to 7 inches. Showy 
blue flowers in May. First size. i 
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. i 
Second size. i 
rotundifolia. Round-leaf Violet. Height 3 to 4 inches. 
Large yellow flowers in early spring. Large prostrate 
shining leaves. Strong. i 
sagittata. Arrowleaf Violet. Height 4. to 8 inches. Deep 
blue flowers in May. Strong. i 
XEROPHYLLUM asphodeloides. Turkey’s-Beard. Height 3 
to 5 feet. Long grass-like leaves. Attractive white 
flowers. Rock-garden subject. Strong. 2 
YUCCA filamentosa. Common Yucca. Large evergreen 
perennial. White flowers in summer. 
Strong, 2-year seedling plants. i 
flaccida. Weakleaf Yucca. Height 2 to 5 feet. Stiff 
narrow leaves. \Uiite flowers in June and July. 
Strong, 3-year. 2 
gloriosa (patens). Moundlily Yucca. Noble plant with 
flower-spike 8 feet high. Blooms rusty white or 
reddish. X strong. 5 
ZYGADENUS muscaetoxicum. Crowpoison. Long grass-like 
leaves with attractive spikes of showy white flowers 
in early spring. X strong. i 
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