Botanical

Name

English Name

1 Deciduous

2 Evergreen

3 Vine

4 Herbaceous

Perennial

Ultimate Height in feet

Color

Time of Bloom

Remarks

Dictamnus albus var. rubra

4

21/2

Pink

June & July

Flowers somewhat smaller than those of the preceding. A.G. I.

Diervilla florida

Weigelia

1

6

Pink

June

S. An old garden favorite with good foliage, and flowers in abundance. B. D. H.

Diervilla florida var. Candida

White Weigelia

1

8

White

June & July

S. Bushy in growth. Flowers large and quite showy. In exposed places it is apt to partly winter-kill. B. D H

Diervilla florida var. va-riegata

Variegated Weigelia

1

5-6

Rose

June

S. Dense in growth. Leaves variegated with white and yellow. A very pretty shrub. B. E. H.

Diervilla floribunda

1

5-6

Crimson

June

S. Flowers abundant, fragrant. B. H.

Diervilla hybrida var. Eva Rathke

1

5

Crimson

June & July

S. The hardiest of the Diervillas; free flowering. Flowers very handsome and fragrant. B. E. H.

Digitalis purpurea

Foxglove

4

2

Various

June & July

Flowers tubular, produced in long flower-clusters, in colors varying from deep purple-pink to white. Good in the border among shrubs. If cut freely it will continue to bloom until late in summer. A. H. I.

Digitalis purpurea var.

Foxglove

4

2-3

Various

June & July

A robust and large-flowered variety of the preceding. A. H. I.

Digitalis ambigua

Foxglove

4

2 1/2

Yellow

June & July

A. H. I.

Dirca palustris

Leatherwood

1

4-5

Yellow

March

S. Foliage light green; flowers quite showy. Very compact in growth, and good as a single specimen for the lawn, or in masses with other shrubs. A. E. F.

Dodecatheon meadia Dolichos

Shooting-star See Pueraria

4

1

Purple

April

Good in the rock-garden and under shrubs or trees. Umbels of drooping flowers on erect stems. A graceful plant of easy culture. A. F.

DoTonicum plantagine-um

Leopard's Bane

4

2

Orange

May & June

Flowers showy; plant bushy in growth. Blooms are often 4 inches in diameter. A valuable spring-flowering perennial. Good in the flower border or under trees. A. F. I.

Doronicum Clusii

4

1 1/2

Golden-yellow

May & June

Vigorous in growth. Flowers large and showy. Should be grown extensively. A good plant for the border or rockery. A. F. J.

Doronicum caucasicum

4

1 1/2

Yellow

May & June

Flowers about 2 inches in diameter, and last well after being cut. A. E. I.

Dracocephalum specio-sum

False Dragonhead

4

1 1/2

Pink

June

Showy flowers on long spikes. Good for massing in front of taller perennials. A. G. I.