| Category | Name | Othername | Zone | Size | Growthrate | Water | Pollination | Bloom | Color | Time | Light | Comments | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Perennials | MOUNTAIN BASKET OF GOLD | Alyssum montanum | 3 | 6-10'' | X | Yellow | Spring | Sun | Low trailing stems with gray leaves | |||||
| Perennials | MAT DAISY | Anacyclus depressus | 5 | 4'' | X | White | Early summer | Sun | Flowers close during cloudy weather or evening to reveal red backs; reseeds | |||||
| Perennials | SUMMER FORGET-ME-NOT | Anchusa azurea | 3-4'' | XX | Bright blue | Early summer | Sun | Prized for showy blue flowers dry clay OK with occasional deep water | ||||||
| Perennials | SNOWDROP ANEMONE | Anemone sylvestris | 3 | 12-18'' | X | White | Spring | Sun or pt sh | Charming spreading plant can rebloom through summer and fall | |||||
| Perennials | PUSSYTOES | Antennaria dioica | 2 | 4'' GC | XXX | Pink buds | Early summer | Sun or pt sh | Native dense carpet of silvery leaves pink buds open to fuzzy flowers | |||||
| Perennials | GOLDEN MARGUERITE | Anthemis tinctoria | 3 | 12-18'' | XX | Yellow | Summer | Sun | Ferny foliage topped by long-stemmed yellow daisies reseeds | |||||
| Perennials | BARNEBY'S COLUMBINE | Aquilegia barnebyi | 3 | 8-18'' | XX | Yellow & red | Early summer | Sun-shade | Delicate-looking but native to our shale soils | |||||
| Perennials | ROCKY MOUNTAIN BLUE COLUMBINE | Aquilegia caerulea | 2 | 1-2'' | XX | Blue & white | Spring-early summer | Sun or shade | Colorado's state flower will tolerate dry conditions especially in some shade | |||||
| Perennials | WILD EASTERN COLUMBINE | Aquilegia canadensis | 3 | 1-2'' | X | Yellow & red | Lt spr-earl sum | Shade-pt sha | Small delicate flowers; can reseed | |||||
| Perennials | YELLOW COLUMBINE | Aquilegia chrysantha | 3 | 30'' | XX | Yellow | Lt spr-early summer | Sun-pt sh | Native that tolerates dry conditions if in shade; also carry 'Denver Gold' the P More ... | |||||
| Perennials | HYBRID COLUMBINE | Aquilegia X hybrids | 3 | 1-3'' | M | Varies | Spring | Sun ' shade | Flowers may be blue red pink purple yellow white or mixed; also carry varieties More ... | |||||
| Perennials | ROCK CRESS | Arabis caucasica | 4 | 4-6'' | M | White | Spring | Sun | Small mounding plant good for edging or in rock garden | |||||
| Perennials | SANDWORT | Arenaria montana | 3 | 4'' GC | X | White | Late spring | Sun | Evergreen foliage great ground cover | |||||
| Perennials | TANGERINE SOUTHERNWOOD | Artemisia abrotanum | 5 | 2-3'' | XXX | Insignificant | Sun | Dark green feathery foliage on a tough plant | ||||||
| Perennials | FRINGED SAGE | Artemisia frigida | 6-15'' | XXX | Insignificant | Sun | Native with silvery foliage | |||||||
| Perennials | VALERIE FINNIS WORMWOOD | Artemisia ludoviciana | 5 | 24'' | XXX | Insignificant | Sun | Grown for silvery gray foliage can be invasive | ||||||
| Perennials | SILVER MOUND | Artemisia schmidtiana | 4 | 6-8'' | XX | Insignificant | Sun | Soft ferny silvery foliage. Cut back in summer to keep compact | ||||||
| Perennials | POWIS CASTLE ARTEMISIA | Artemisia x 'Powis Castle' | 5 | 12-24'' | XXX | No flowers | Sun | Tough plant with ferny silvery foliage. Cut back in early spring | ||||||
| Perennials | SEAFOAM ARTEMESIA | Artemesia versicolor x | 4 | 10'' | XXX | Insignificant | Sun | Curly silver foliage on branches spreading 18' good ground cover under xeric shr More ... | ||||||
| Perennials | BUTTERFLY WEED | Asclepias tuberosa | 4 | 12-18'' | X | Orange | Summer | Sun | Large clusters of flowers attract butterflies | |||||