Thorn Creek Native Seed

Our native wildflowers are being harvested and cleaned! All are sold PLS (pure live seed) unless otherwise noted.

Plant	Height	Blooms	Light	Planting Date	Purchase
Northern Bedstraw Gallium boreale	1-2'	Early summer			out of stock
Showy milkweed Asclepias speciosa	3 - 5’	Summer		Fall or Spring; no stratification required
Silky Lupine Lupinus sericeus	8-24''	early June to mid-July		Fall preferred; 30-day cool/moist stratification
Western yarrow Achillea millefolium	1-4'	Midsummer		Fall to early Spring
Slender Cinquefoil Potentilla gracilis	2-3'	Late spring to early summer		Fall to Early Spring; 30- to 120-day cool/moist stratification required	out of stock
Sticky Purple Geranium Geranium viscosissimum	1-3'	June through August		Fall to Early Spring; 30-day cool/moist stratification
Oregon checkermallow Sidalcea oregana	2-3'	Mid to late summer		Fall to Early Spring; 30-day cool/moist stratification
Elkhorns Clarkia Clarkia pulchella	6-12''	Early to mid summer		Fall to Early Spring; 30-day stratification recommended (but not necessary)
Prairie Cinquefoil Potentilla arguta	2-3'	Midsummer		Fall to Early Spring; 30-days stratification
Grand Collomia Collomia grandiflora	12-18''	Midsummer		Fall to Early Spring; 30-days stratification helps.	out of stock
Lewis Flax Linum lewisii	1-2'	Mid to late summer		Fall to Early Spring; short startification however best results with fall /winter seeding
Blanketflower Gaillardia aristata	2'	Mid to late summer		Fall to Spring; no stratification required
Missouri goldenrod Solidago missouriensis	2-3'	Late summer to fall		Fall to Spring; no stratification required
Prairie Smoke Geum triflorum	6-18''	Spring to early summer		Fall to Spring; no stratification required
Western Aster Symphyotrichum spathulatum	1-2'	Midsummer to frost		Fall to Spring; no stratification required
Oregon sunshine Eriophyllum lanatum	4-24''	Late summer to fall		Fall/Winter; 90-day cold/moist stratification
Taper-leaf Penstemon Penstemon attenuatus	1-2'	Early to midsummer		Fall/Winter; 90-day stratification required
Wyeth Buckwheat Eriogonum heracleoides	12-18	Midsummer		Fall/Winter; 90-day stratification required
Arrowleaf Balsamroot Balsamorhiza sagittata	24	Early Spring		Fall/Winter; 90-days stratification required
Fernleaf Lomatum Lomatium dissectum	2-4'	Spring		Fall/Winter; up to 330-day stratification!
Little Sunflower Helianthella uniflora	2-4'	Fall to Very early Spring		Fall; 30+ day cold/moist stratification.
Idaho Fescue Festuca idahoensis	1-2'	Summer		late Fall preferable, early Spring if necessary	out of stock
Nine-leaf Lomatum Lomatium triternatum	28''	Early spring		late Fall to early Winter to allow for natural cool/moist stratification
Bluebunch Wheatgrass Pseudoroegneria spicata	1-3'	Midsummer		Seed in very early spring on heavy to medium textured soils and in late fall on medium to light textured soils.	out of stock
Blue Wildrye Elymus glaucus	3-4'	Midsummer		Spring	out of stock
Prairie Junegrass Koeleria macrantha	6-24''	Early summer		Spring recommended	out of stock