In many forms, purple, red, and white, and perhaps the best of late summer-blooming shrubs; 8-12 ft.
Hydrangea, Hydrangea paniculata, var. grandiflora.‡
One of the best and most showy small flowering shrubs; 4-10 ft.
Downy hydrangea, H. radiata.*
Attractive in both foliage and flower.
Oak-leaved hydrangea, H. quercifolia.*
This is especially valuable for its luxuriant foliage; even if killed to the ground in winter, it is still worth cultivating for its strong shoots.
The greenhouse hydrangea (H. hortensis in many forms) may be used as an outdoor subject in the South.
St. John’s wort, Hypericum Kalmianum,*‡ H. prolificum,* and H. Moserianum.
Small undershrubs, producing bright yellow flowers in profusion in July and August; 2-4 ft.