Bloom Period Native or Botanical Name Common Name April May June July August September October Flower Color Season Height Light Needs Introduced Shrubs Arctostaphylos uva‐ursi Kinnikinnick Pink 6‐8ʺ Native Partial to full sun Cornus canadensis Bunchberry White 6‐8ʺ Native Partial shade Deutzia gracilis ʹNikkoʹ Nikko Deutzia White 18‐24ʺ Introduced Partial to full sun Ericameria nauseosa Rabbitbrush Yellow 36‐48ʺ Native Full sun Mahonia repens Creeping Oregon Grape Yellow 10‐18ʺ Native Partial shade Philadelphus lewisii Lewis mockorange White 4‐6ʹ Native Partial to full sun Physocarpus malvaceus Ninebark White 3‐6ʹ Native Partial shade Spiraea douglasii Rose spiraea Pink 3‐5ʹ Native Partial shade Symphoricarpos alba Common Snowberry Pink 18‐36ʺ Native Full sun Perennial Forbs Achillea millefolium Common Yarrow White 18‐24ʺ Native Full sun Artemisia schmidtiana Silver mound White 12‐18ʺ Introduced Full sun Asclepias speciosa Showy milkweed Pink 24‐48ʺ Native Full sun Campanula carpatia Carpathian Bellflower Purple 6‐12ʺ Introduced Partial to full sun Campanula rotundifolia Harebell Blue 8‐16ʺ Native Partial to full sun Dalea candida Slender white Prarie clover White 36‐48ʺ Native Full sun Echinacea angustifolia Purple coneflower Purple 12‐36ʺ Native Full sun Echinops ritro Globe Star Thistle Blue 12‐36ʺ Introduced Full sun Erigeron compositus Cutleaf daisy White 6‐8ʺ Native Partial shade Fragaria vesca Wood Strawberry White 2‐6ʺ Native Partial shade Fritillaria pudica Yellowbells Yellow 4‐10ʺ Native Partial shade Gaillardia aristata Blanketflower Yellow 12‐36ʺ Native Full sun Geranium viscosissiumum Wild geranium Pink 16‐36ʺ Native Partial to full sun Helleborus orientalis Lenten Rose Varies 12‐24ʺ Introduced Partial shade Heterotheca villosa Hairy goldenaster Yellow 6‐20ʺ Native Full sun Heuchera elegans Coral bells Pink 6‐12ʺ Introduced Partial shade Liastris punctata Dotted gayfeather Purple 4‐24ʺ Native Full sun Linum lewisii Lewis flax Purple 12‐30ʺ Native Partial fo full sun Monarda fistulosa Wild beebalm Purple 12‐28ʺ Native Partial to full sun Oenothera caespitosa White evening primrose White 4‐10ʺ Native Full sun Penstemon eatonii Firecracker penstemon Red 24‐36ʺ Native Partial shade Penstemon eriantherus Fuzzytongue Penstemon Purple 5‐15ʺ Native Partial shade Ratibida columnifera Prarie coneflower Yellow 12‐36ʺ Native Full sun Rudbeckia hirta Black eyed Susan Yellow 12‐36ʺ Introduced Partial to full sun Symphyotrichum laeve Smooth blue aster Purple 12‐36ʺ Native Partial to full sun Sedum x ʹAutumn Joyʹ Autumn Joy Stonecrop Pink 18‐24ʺ Introduced Partial to full sun Bloom Period Native or Botanical Name Common Name April May June July August September October Flower Color Season Height Light Needs Introduced Bulbs/Perennial Crocus santivis Crocus Varies 4‐6ʺ Introduced Full sun Crocus banticus Crocus Purple 4‐6ʺ Introduced Full sun Narcissus sp. Daffodil Yellow 8‐24ʺ Introduced Full sun Hyacinthus sp. Hyacinths Varies 6‐10ʺ Introduced Full sun Tulipa sp. Tulip Varies 10‐30ʺ Introduced Full sun Biennial Forbs Ipomopsis aggregata Scarlet gillia Red 12‐36ʺ Native Partial shade Annual Forbs Clarkia puchella Clarkia Purple 10‐20ʺ Native Partial shade Grasses Achnatherum hymenoides Indian ricegrass Cool 12‐18ʺ Native Full sun Bouteloua gracilis Blue grama Warm 12‐14ʺ Native Full sun Festuca campestris Rough fescue Cool 2‐3ʹ Native Full sun Festuca idahoensis Idaho fescue Cool 12‐40ʺ Native Full sun Hierochloe odorata Sweet grass Cool 15‐30 Native Full sun Koeleria macrantha Prairie junegrasss Cool 8‐20ʺ Native Full sun Pseugoroegneria spicata Bluebunch wheatgrass Warm 24‐48ʺ Native Full sun.