Euphorbia polychroma ‘First Blush' has pale green leaves with showy white margins. During spring and fall, this 30-centimetre tall and wide plant develops a rose-coloured blush. In summer, pink buds open to yellow flowers surrounded by yellow bracts. Well-drained soil, full sun, Zone 5.
Heliopsis helianthoides ‘Prairie Sunset' has striking golden flowers (some with yellow-brown and maroon highlights), purple-black stems and purple-veined foliage. This one- to two-metre-tall false sunflower blooms from June to frost. If desired, cut back by one-third in May to shorten. Seldom needs staking. Tolerates drought and poor soils, full sun, Zone 3.
Designer daylilies conjure up visions of artistic colours, and Hemerocallis ‘Janice Brown' is no exception. This diploid daylily has rounded, ruffled, bright pink flowers with a rose-pink eye and green throat that make it notable. Semi-evergreen and a strong grower, ‘Janice Brown' reaches a height of 55 centimetres and often re-blooms. All soils, full sun, Zone 4.
Frustrated lupine growers will like this new, easy-to-grow false indigo. Baptisia ‘Carolina Moonlight' is 1.5 metres tall with a one-metre spread, blue-green foliage and 45-centimetre-tall, lupine-like spikes of soft, buttery yellow blooms in early summer. Heat- and drought-tolerant. Most well-drained soils, full sun, Zone 4.
The rich maroon blooms of Astrantia major ‘Ruby Wedding' command attention. This masterwort reaches a height and spread of 35 by 30 centimetres. Cut back by one-third to one-half after it flowers in midsummer to encourage new foliage and fall flowers. Watch for self-seeding. Moist, rich soil, part sun, Zone 4.
Heuchera ‘Cappuccino' has dark, bronze-green leaves that become mottled with white margins over time. This heuchera has small, white blooms in June and July, and grows 25 to 60 centimetres tall and up to 45 centimetres wide. Moderately moist, well-drained, alkaline soil, sun or part shade, Zone 5.
An offspring of Clematis x integrifolia, C. ‘Arabella' has masses of rose-purple, red-flushed, semi-nodding blooms from summer to fall, which age to reveal mauve-pink veining. This non-climbing clematis is excellent for weaving through perennials or shrubs, or may be supported by an obelisk to its full 1.5-metre height. Prune to the ground in early spring. Moist, well-drained, not overly rich soil, full sun or part shade, Zone 4.