THE ORNAMENTAL PLANTS — SHRUBS 299 
Andromeda, Pieris floribunda.* 
A small ericaceous evergreen; should have some protection from the winter 
sun; for this purpose, it may be planted on the north side of a clump of 
trees; 2-6 ft. 
Shrubby cinquefoil, Potentilla fruticosa.*t 
Foliage ashy; flowers yellow, in June; 2-4 ft. 
Sand cherry, Prunus pumila* and P. Besseyi.* 
The sand cherry of sandy shores grows 5-8 ft.; the western sand cherry 
(P. Besscyi) is more spreading and is grown for its fruit. The European 
dwarf cherry (P. fruticosa) is 2-4 ft., with white flowers in umbels. 
Flowering almond, P. Japonica. 
In its double-flowered form, familiar for its early bloom; 3-5 ft; often 
grafted on other stocks, which are liable to sprout and become troublesome. 
Hop-tree, Ptelea trifoliata.* 
Very interesting when bearing its roundish winged fruits; 8-10 ft., but 
becoming larger and tree-like. 
Buckthorn, Rhamnus cathartica. 
Much used for hedges; 8-12 ft. 
Alpine buckthorn, R. alpina. 
Foliage attractive; 5-6 ft. 
Rhododendron, Rhododendron Catawbiense* and garden varieties 
(p. 391). 
Hardy in well-adapted locations, 3-8 ft., and higher in its native regions. 
Great laurel, R. maximum.* 
A fine species for mass planting, native as far north as southern Canada. 
Extensively transplanted from the wild. 
White kerria, Rhodotypos kerrioides. 
White flowers in May and blackish fruit ; 3-5 ft. 
Smoke-tree (Fringe-tree erroneously), Rhus Cotinus. 
One of the best shrubs for massing; two colors are grown; the billowy 
“bloom,” holding late in the season, is composed of flower stems rather 
than flowers; size of large lilac bushes. 
Dwarf sumac, R. copallina.* 
Attractive in foliage, and especially conspicuous in autumn from the bril- 
liant red of its leaves; 3-5 ft., sometimes much taller. 
