Cannon Valley Nursery - Wildflower Seed Collection Dates

Scientific Name	Common Name	Begin mm/dd	Peak mm/dd	End mm/dd
Achillea filipendulina	Gold Yarrow	-	09/14	09/23
Achillea millefolium	Alaskan Yarrow	-	??/??	-
Agastache foeniculum	Anise Hyssop	-	09/14	09/20
Apocynum cannabinum	Indian Hemp	-	09/14	09/20
Asclepias syriaca	Common Milkweed	-	09/21	-
Echinacea pallida	Pale Coneflower	-	??/??	-
Echinacea paradoxa	Yellow Coneflower	-	??/??	-
Echinacea purpurea	Purple Coneflower	-	10/15	-
Elymus canadensis	Canada Wildrye	-	09/14	-
Heracleum lanatum	Cow Parsnip	-	??/??	-
Hieracium pilosella	Mouse-Ear Hawkweed	-	??/??	-
Liatris ligulistylis	Meadow Blazing Star	-	09/22	-
Lupinus perennis	Wild Lupine	-	07/14	07/18
Machaeranthera tanacetifolia	Prairie Aster	-	??/??	-
Monarda fistulosa	Wild Bergamot	-	09/02	09/20
Monarda punctata	Prairie Bee Balm	-	??/??	-
Oenothera biennis	Evening Primrose	-	09/11	-
Penstemon digitalis	Smooth Penstemon	-	10/15	-
Penstemon grandiflorus	Large-Flowered Beardtongue	-	-	08/28
Physostegia virginiana	Obedient Plant	-	10/10	-
Ratibida pinnata	Grayheaded Coneflower	-	09/14	-
Rudbeckia fulgida	Orange Coneflower	-	??/??	-
Silphium laciniatum	Compass Plant	-	09/25	-
Silphium perfoliatum	Cup Plant	-	-	09/28
Solidago rigida	Stiff Goldenrod	-	10/16	-
Solidago speciosa	Showy Goldenrod	-	??/??	-
Sorghastrum nutans	Indian Grass	-	??/??	-
Verbena hastata	Blue Vervain	-	10/16	-
Zizia aurea	Golden Alexander	-	09/21	-