Botanical Name

English Name

1 Deciduous

2 Evergreen

3 Vine

4 Herbaceous

Perennial

Ultimate Height in feet

Color

Time of Bloom

Remarks

Ulmaria Filipendula or Spiraea Filipendula

Dropwort

4

1-2

Cream-white

June & July

Foliage fern-like and dark green. Flowers in large, irregular clusters. Good for the border or rockery. A. G. I.

Ulmaria Filipendula var. flore-pleno

Double Dropwort

4

1-2

Cream-white

June & July

Much like the preceding, but with larger clusters of flowers. A. G. I.

Ulmaria palmata or Spiraea palmata

Palmate-leaved Spiraea

4

3

Carmine

June & July

Broad clusters of brilliant flowers borne on erect stems. Leaves rough, palmate. Good in masses near water or for the border. A. G. I.

Ulmaria palmata var. alba

4

3

White

June & July

Flowers in large and showy clusters. A.G. I.

Ulmaria palmata var. elegans

4

2-3

Pink

June & July

Similar to the preceding, but with clusters of light pink flowers. A.G. I.

Ulmaria pentapetala or Spiraea ulmaria

Queen of the Meadows

4

3

Cream-white

June & July

Foliage silvery and hairy; flowers fragrant, in thick clusters. Good in the wild-garden or near water. A. F. I.

Ulmaria rubra or Spiraea lobata

Meadow Queen Spiraea

4

3

Deep pink

June & July

Foliage coarse and rough. Flowers in spreading, feathery clusters. Beautiful among coarse perennials or in masses near water. A. F. I.

Ulmus americana

American Elm

1

60-80

T. A tall, graceful, wide-spreading tree with outward curving and pendulous branches. There are many distinct forms. A favorite avenue-tree, but difficult to care for because of attacks of elm-leaf beetles. Spray early in May with arsenate of lead. A. D.G.

Ulmus campestris

English Elm

1

60-80

T. Branches spreading, forming a round, open head. Foliage darker green and smaller than that of the American species and remains green in the fall for several weeks longer. Bark often corky. A good tree for avenues. A. D.G.

Ulmus campestris var. antarctica aurea

Golden-leaved Elm

1

20-30

T. A variety with small, bright yellow foliage. Good for color contrast with darker foliage. B. C. E. G.

Ulmus campestris var. Louis Van Houtte

Van Houtte's Elm

15-20

T. Bright yellow foliage much like the preceding, but tree more pyramidal in growth. B. C. E. G.

Ulmus scabra var. atro-purpurea

Purple-leaved Elm

1

40-50

T. Foliage large and dark red. A. D.G.

Ulmus fulva

Slippery Elm

1

50-60

T. Foliage large, rough and deep green. Branches spreading, forming an open, broad, flat-topped head. Often used in avenue-planting. A. D.G.