Achillea 'Moonshine'
Moonshine Yarrow
Slightly smaller in stature, Moonshine Yarrow is a popular Achillea hybrid. Long bloom period. Canopy coverage: 3 square feet.
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Achillea filipendulina 'Coronation Gold'
Fernleaf Yarrow
The delicate fernlike leaves of Fernleaf Yarrow create an attractive background for its clusters of yellow-gold flowers. Display flowers fresh or dried in arrangements. Canopy coverage: 3 square feet.
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Achillea millefolium
Common Yarrow
In hot-summer climates, expect an easier time when growing Yarrow if plants receive afternoon shade. Effective small area groundcover or in rock gardens. Many improved selections such as 'Paprika', shown, and 'Summer Pastels', are available; check locally. Canopy coverage: 3 square feet.
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Achillea tomentosa
Woolly Yarrow
Plant Woolly Yarrow where it will receive afternoon shade in hot-summer climates. Effective small area groundcover or in rock gardens. Canopy coverage: 3 square feet.
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Agastache foeniculum
Anise Hyssop
Anise Hyssop is a clump-forming perennial with fragrant foliage. It is often used in teas, jellies and potpourris. Canopy coverage: 7 square feet.
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Agastache rupestris
Hummingbird Mint
All plant parts of Hummingbird Mint are fragrant, described as smelling like licorice and mint. Flowers bloom for a long period. A Plant Select selection. Canopy coverage: 3 square feet.
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Alcea rosea
Hollyhock
This is an iconic "grandma's garden" perennial or biennial often grown as an annual. It is old-fashioned but still fun to grow. Consider it a back-of-the-border plant due to its height, what can reach more than 6 feet. Available in a wide range of flower colors. Reseeds readily to extend plantings.
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Aquilegia chrysantha
Golden Columbine
Golden Columbine is considered one of the best of the columbines, with a long bloom period of large dramatic flowers. This group of perennial wildflowers is at home in a woodland type garden, accepting some shade. Canopy coverage: 3 square feet.
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Asclepias tuberosa
Butterfly Weed
Butterfly Weed is a shrubby, upright perennial in form. It is known to attract butterflies, particularly monarch butterflies; they seek out plants to lay their eggs. Plant in well drained soil. Canopy coverage: 3 square feet.
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Aurinia saxatilis
Basket-Of-Gold
Basket-Of-Gold is a compact and mounding perennial to 1 foot high or less. Flowers bloom early in spring. Look for 'Gold Ball'. Plant in soil with good drainage. Canopy coverage: 1 square foot.
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Baptisia australis
Blue False Indigo
Blue False Indigo is a clumping perennial with indigo-blue flowers that look similar to those of sweet peas. They bloom on spikes above the oval leaves; interesting inflated seed pods follow. Drought resistant and tolerant of poor soils. Canopy coverage: 13 square feet.
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Bergenia cordifolia
Heartleaf Bergenia
Heartleaf Bergenia is a slow-spreading, clumping perennial that does best in shady locations. The thick, leathery leaves are large, up to 10 inches long and 8 inches wide. Dark pink flowers are borne on sturdy stems 1 foot or more high above the leaves, which grow in a rosette form. Canopy coverage: 3 square feet.
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Brunnera macrophylla
Siberian bugloss, False Forget-Me-Not
This is a clumping perennial for a shady location. Attractions include the lush, heart-shaped leaves and the bright blue flowers that nod on tall, slender stems above the foliage. Canopy coverage: 3 square feet.
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Brunnera macrophylla 'Jack Frost'
Variegated Siberian bugloss
'Jack Frost' is a variegated selection of Siberian bugloss. It is a clumping perennial for a shady location, the light foliage color brightens dark and shady locations. Attractions include the lush, heart-shaped leaves and the bright blue flowers that nod on tall, slender stems above the foliage. Canopy coverage: 3 square feet.
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Callirhoe involucrata
Prairie Winecups
Prairie Winecups grows as a low mounding form composed of trailing stems. Rich green leaves are deeply lobed. Flowers do put you in mind of cups of wine—cup-shaped, magenta to purple, brilliant in the sun. In hot summer regions locate plants where they will receive afternoon shade. Not fussy regarding soil as long as it is well drained. Canopy coverage: 7 square feet.
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Calylophus hartwegii var. fendleri
Calylophus, Sundrops
Calylophus produces masses of large yellow flowers, blooming for a long period in spring. Excellent in rock gardens. Canopy coverage: 3 square feet.
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Castilleja integra
Orange Indian Paintbrush
Orange Indian Paintbrush grows as an upright clumping form. The brilliant color is actually bracts, modified leaves, rather than the flowers, which are mostly greenish in color. Known to have a poor success rate when it comes to transplanting. Canopy coverage: 1 square foot.
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Centaurea dealbata
Pink Bachelor Button, Persian Cornflower
This is a clump-forming perennial with dramatic, cornflower blooms of rose-pink to blue. Evokes a natural, woodland mood. Canopy coverage: 3 square feet.
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Centaurea montana
Perennial Bachelor Button
Perennial Bachelor Button grows as a compact, clumping form. Flowers look similar to those of cornflower. Leaves are leathery, reaching several inches long. Canopy coverage: 3 square feet.
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Centranthus ruber
Red Valerian
This is an old-fashioned perennial, often used in borders. Grows as a shrubby clump and reseeds readily. Selections with white, red or pink flowers are available. Canopy coverage: 3 square feet.
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Cerastium tomentosum
Snow-in-Summer
This is a versatile but short-lived perennial groundcover. Grows 6 to 8 inches high and spreads rapidly to 2 feet or more. Silvery gray leaves serve as background for the profuse white flowers. Accepting of tough conditions, including poor,dry soils. Canopy coverage: 3 square feet.
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