Botanical Name

English Name

1 Deciduous

2 Evergreen

3 Vine

4 Herbaceous

Perennial

Ultimate Height in feet

Color

Time of Bloom

Remarks

Hyacinthus orientalis

Dutch Hyacinth

4

8-12 in.

Various

April & May

An old garden favorite with fragrant bell-shaped flowers on short spikes. Foliage thick, narrow and stiff. Root bulbous. Flowers are double in some varieties, and in colors of blue, white, red, lilac and yellow. Good for planting in masses in open beds or among perennials in the border, where they will flower and disappear before other plants get well started. Set bulbs in August or September 6 inches deep, in good, deep, well-drained soil. Protect in winter with litter or stable manure.

Hydrangea arborescens

1

6

White

June & July

S. Erect in growth. Leaves light green, glaucous beneath. Flowers in flat clusters. A good shrub for shady spots. A. G.

Hydrangea arborescens var. sterilis

Summer Snowball

1

6

White

June & July

S. A form of the preceding with large sterile flowers borne in great masses, practically covering the shrub. A very showy and useful shrub. A.G.

Hydrangea radiata or H. nivea

1

6

White

June & July

S. Much resembling H. arborescens, but leaves are silvery white underneath. A. G.

Hydrangea paniculata

Paniculate Hydrangea

1

8

White

Sept. & Oct.

S. One of the most useful flowering shrubs. Flowers in large panicles on erect stems. They turn from white to a beautiful pink and red as fall approaches. The foliage is deep green and is always good. A. G.

Hydrangea paniculata var. grandiflora

Large-flowered Hydrangea

1

7

White

Sept. & Oct.

S. Immense cone-shaped heads of flowers on pendulous branches. Should be pruned severely each spring and kept low and bushy. A.G.

Hydrangea quercifolia

Oak-leaved Hydrangea

1

5

White

August

S. Foliage large, very dark green, shaped like oak leaves. Flowers in flat clusters, tinted with yellow. An interesting spreading shrub. B. C. E. H.

Hydrangea vestita

1

5

White

June

S. The most showy of the early Hydrangeas. Good foliage and large flat flower-clusters. Erect in habit of growth. A. G.

Hydrophyllum cana-dense

Water-leaf

4

1

White

June & July

Leaves palmately divided; flowers bell-shaped in clusters. Good for covering ground under shrubs. A. F.

Hypericum aureum

Shrubby St. John's Wort

1

3

Yellow

July & Sept.

S. A fine dwarf shrub with unusually good foliage and showy double flowers. Excellent in margins of shrub-borders. A.G. I.