280 MANUAL OF GARDENING 
Primula cortusoides. — Height, 9 inches; third week of May; flowers, 
small, deep rose, in compact heads. 
Pyrethrum (or Chrysanthemum) uliginosum. — Height, 4 feet; Sep- 
tember; 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. f 
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, 14 feet; first week of July ; flowers, 
large, light blue, and borne singly on long stems, very freely through- 
out 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 pani- 
cles. 
Spirea (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. 
Spirea (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. t 
Spirea (Ulmaria) purpurea var. elegans. — Height, 2 to 3 feet; first 
week of July; flowers, whitish with crimson anthers, borne very pro- 
fusely in panicles. 
Spirea Ulmaria (Ulmaria pentapetala). — Height, 3 to 4 feet; second 
week of July ; flowers, very numerous, dull white, borne in large com- 
pound heads, having a soft, feathery appearance. 
Spirea venusta (Ulmaria rubra var. venusta). — Height, 4 feet ; second 
week of July; flowers, small, bright pink, borne profusely in large 
panicles. f 
Statice latifolia. — Height, 14 feet; first week of July; flowers, small, 
blue, borne very profusely in loose panicles. Very effective in the 
border. 
Thalictrum aquilegifolium. — Height, 4 to 5 feet; fourth week of 
