Primula cortusoides.—Height, 9 inches; third week of May; flowers, small, deep rose, in compact heads.
Pyrethrum (or Chrysanthemum) uliginosum.—Height, 4 feet; September; flowers, large, white with yellow centers, and borne singly on long stems.
Rudbeckia laciniata* (Golden Glow).—Height, 5 to 6 feet; August; flowers, large, lemon-yellow, double, and borne on long stems. One of the best of lately introduced perennials. †
Rudbeckia maxima.*—Height, 5 to 6 feet; July and August; flowers, large, with a long cone-shaped center and bright yellow rays, and borne singly. The whole plant is very striking.
Scabiosa Caucascia.—Height, 1-1/2 feet; first week of July; flowers, large, light blue, and borne singly on long stems, very freely throughout remainder of the summer.
Solidago Canadensis* (Golden-rod).—Height, 3 to 5 feet; first week of August; flowers, small, golden yellow, and borne in dense panicles.
Spiræa (properly Aruncus) astilboides.—Height, 2 feet; fourth week of June; flowers, small, white, very numerous, and borne in many branched panicles. Both foliage and flowers are ornamental.
Spiræa (or Ulmaria) Filipendula.—Height, 2 to 3 feet; third week of June; flowers, pure white, borne profusely in loose panicles. The foliage of this species is also very good. There is a double flowered variety which is very effective. †
Spiræa (Ulmaria) purpurea var. elegans.—Height, 2 to 3 feet; first week of July; flowers, whitish with crimson anthers, borne very profusely in panicles.
Spiræa Ulmaria (Ulmaria pentapetala).—Height, 3 to 4 feet; second week of July; flowers, very numerous, dull white, borne in large compound heads, having a soft, feathery appearance.