Anthemis tinctoria var. Kelwayi.—Height, 1 to 2 feet; fourth week of June; flowers, large, deep yellow, borne singly on long stems; it continues to bloom profusely throughout the summer; is very showy and valuable for cutting. †
Aquilegia Canadensis.*—Height, 1 to 1-1/2 feet; third week of May; flowers, medium size, red and yellow.
Aquilegia chrysantha.*—Height, 3 to 4 feet; fourth week of June; flowers, large, bright lemon-yellow, with long slender spurs; much later than other columbines. †
Aquilegia cœrulea.*—Height, 1 to 1-1/2 feet; fourth week of May; flowers, large, deep blue with white center and long spurs. †
Aquilegia glandulosa.—Height, 1 foot; third week of May; flowers, large, deep blue with white center and short spurs.
Aquilegia oxysepala.—Height, 1 foot; second week in May; flowers, large, deep purplish blue with blue and yellow centers; a very desirable early species.
Aquilegia Stuarti.—Height 9 to 12 inches; third week of May; flowers, large, deep blue with white center; one of the best.
Arabis alpina.—Height, 6 inches; first week in May; flowers, small, pure white, in clusters.
Arnebia echioides.—Height, 9 inches; third week of May; flowers, yellow, borne in clusters with petals spotted with purple. One of the most charming of early flowering plants.
Asclepias tuberosa.*—Height, 1-1/2 to 2 feet; third week of July. Flowers, bright orange, borne in clusters. Very showy.