Hydrangea, continued 



but extensively grown as pot or tub 

 plants and frequently used for deco- 

 rating piazzas and formal gardens. 

 The color of the flowers seemingly 

 varies in different soils, ranging from 

 white to shades of blue and pink. The 

 following are among the best varieties: 

 // '//A flat -topped clusters of floivers, 

 several of the marginal ones ray- 

 like and sterile : 

 Belzoni. Usually with white or blue 



rays. 



Japonica. With large pink rays. 

 Rosalba. Rays deeply toothed, white 



or rose-color. 

 With globular clusters of flowers, all 



of them ray-like and sterile : 

 Hortensia. Large show} 7 heads of flow- 

 ers, usually pink. 

 Otaksa. Handsome clusters of pink 



or blue flowers. 



Ramulis pictis. Branches dark pur- 

 ple; flowers pink or blue. 

 Thos. Hogg- Huge clusters of white 

 flowers. 



Hydrangea paniculata. PANICLED 

 HYDRANGEA. A very hardy tall 

 shrub with handsome dark green foli- 

 age. Native of Japan. Flowers creamy 

 white with numerous white rays, 

 borne in large panicles 6 to 12 inches 

 long, the sterile flowers changing in 

 age to tones of rose and purple. Very 

 ornamental and graceful, producing 

 charming effects when massed. 



H. paniculata grandiflora LARGE- 

 FLOWERED HYDRANGEA. Undoubt- 

 edly the most popular variety and 

 one of the showiest shrubs in cultiva- 

 tion. The flowers are almost all ray- 

 like and sterile, and are produced in 



Hypericum calycinum (see page 72) 



Hydrangea quercifolia 



very large panicles. When fully expanded the flowers are white, 

 but soon assume tones of rose and bronze on the exposed sides. 

 This shrub requires severe pruning in early spring to insure the 

 largest trusses. 



H. paniculata praecox. EARLY-FLOWERING HYDRAN- 

 GEA. Similar to H. paniculata, but blossoms 4 to 6 

 weeks earlier. By the judicious use of this shrub in 

 connection with the typical form, the floral duration of 

 the Hydrangeas may be considerably extended. 



H. quercifolia. OAK-LEAVED HYDRANGEA. A distinct 

 ^f and handsome shrub with spreading branches. Occurs 

 '" naturally from Kentucky to Florida. Young branches 

 densely clothed with rusty brown felt-like hairs. 

 Leaves large, deeply lobed, dark green above, whitened 

 and downy beneath. Flowers disposed in large pani- 

 cles, creamy white with numerous white or pinkish 

 white rays. A beautiful ornamental. Height 4 to 6 feet. 

 H. radiata. SILVER-LEAVED HYDRANGEA. An erect 

 shrub 4 to 6 feet tall, indigenous to the Southern Appalachian 

 region. Leaves narrowly heart-shaped, rich green on the upper 

 surface, silvery white beneath. Flowers creamy white, in numerous 

 flat -topped clusters, with several large ray -flowers on the outer 

 margin. Splendid for rocky banks and rock-gardens. 



Hypericum The St. John's-worts 



Very ornamental free-flowering shrubs with yellow flowers, 

 blossoming in summer. They thrive in almost any well-drained 

 soil, either in full sun or partial shade. 



Hypericum aureum. GOLDEN HYPERICUM. LARGE -FLOWERED 

 ST. JOHN'S-WORT. A hardy shrub, attaining a height of about three 



70 



