Ornamental Sbrubs. 



221 



A few of the rock-roses (HeliarUhemum) will succeed in 

 sunny, sheltered positions in a rockery. The most common 

 are : H. vulgare, flowers originally yellow, now much varied 

 in color. A procumbent shrub. H. poUfolium, with 

 small linear leaves and white flowers. There is also a 

 rose-colored variety. 



THE HYPERICUM FAMILY. 



Hypericum or St. John's - Wort. Mostly herbaceous 

 plants of moderate ornamental value. H. Kalmianum is 

 a low, spreading shrub, with glaucous leaves and bright 

 yellow flowers late in summer. H. aureum, a kind found 

 on the banks of mountain rivulets in partial shade. Leaves 

 oblong, glaucous, flowers very large, orange-yellow. Forms 

 a medium-sized shrub of regular habit, flowering in August. 

 H. calycinum is a procumbent shrub, a foot high, with ovate 

 leaves and large yellow flowers late in summer. One of the 

 best for covering bare spots under tall shade-trees and also 

 fine in rockeries. 



THE TAMARISK FAMILY. 



Tamarisk, Tamarix. Graceful shrubs of a cypress-like 

 appearance, with minute, awl-shaped leaves, and very long, 

 arching branches, covered with numerous small, reddish 

 flowers in summer. The most common are T. Africana 

 and T. Gallica. There is a beautiful vigorous species, T. 

 articulata, from China and the Orient, which is equally 

 hardy. Sea-side shrubs, for sandy and exposed shores, in 

 company with sea buckthorn and pine. All grow well in 

 light and sterile soil, in sunny positions. 



