Recommended Plants for Iowa Rain Gardens, Biocells and Bioswales BMP Use Sun Exposure Soil Moisture Location in BMP Height Blooming Period Comments Berm garden shade of 24" 36" sun ‐ ‐ 12" ‐ Rain Biocell Bioswale Full Part Shade Wet Moist Mesic Dry Bottom Sides Top 6" 12" 24" Common Name Botanical Name >36" April May June July August September October Native Forbs (Flowers) American Columbine Aquilegia canadensis x x x x x x x x x x x x x x Will spread Anise Hyssop Agastache foeniculum x x x xxxx x x x x xxx Will spread Aster, Lance Leaf Symphyotrichum lanceolatum xxxxx xx x xxx xxx Can be too tall for a biocell Aster, New England Symphyotrichum novae‐angliae x x xx x x x x xxxCan be too tall for a biocell Aster, Smooth Blue Symphyotrichum laeve x x x x x x x xxx Aster, Upland White Solidago ptarmicoides xxxx x x x xxx Blazingstar, Prairie Liatris pycnostachya x x x x xxx x x xxx Blazingstar, Rough Liatris aspera xxxx xxx x xxx Blue Vervain Verbena hastata x x x xx xxx x x x xxx Bracted Spiderwort Tradescantia bracteata x x x xx xxxx x xx Will spread Butterfly Milkweed Asclepias tuberosa x x x x x x xx x x xx x Canada Anemone Anemone canadensis xxxxx x xxxxxx xx Will spread Canada Milkvetch Astragalus canadensis xxxx x xx xxx xxx Canada Wildrye Elymus canadensis xxxx x xxx Common Ironweed Vernonia fasciculata xxxx xx xx x xxxCan be too tall for a biocell Common Milkweed Asclepias syriaca xxxx xx xx x xxx Can be too tall for a biocell Coneflower, Greyheaded Prairie Ratibida pinnata xxxx x xx x xxxx Coneflower, Orange Rudbeckia fulgida xxxxx x xx x xxxx Coneflower, Pale Purple Echinacea, pallida x x x x xxx x x xxx Coneflower, Purple Echinacea purpurea xxxxx x xxxx xx xxx Coreopsis Coreopsis palmata xxxxx x xx xx xxx Coreopsis, Lance Leaf Coreopsis lanceolata xxxx x xxxx x xxx Culvers Root Veronicastrum virginicum xxxxx xx x xx xx Tall but does not flop False Sunflower (Ox‐eye) Heliopsis helianthoides xxxx x xxx x xxx Fern, Maidenhair Adiantum xx x x xxx Fox Sedge Carex vulpinoidea xxxx xx xx Foxglove Beards Tongue Penstemon digitalis xxxx x xx x xx Can be too tall for a biocell Gentian, Bottle Gentiana andrewsii xxxxx x xxxx x xx Gentian, Cream Gentiana flavida xxxxx x xxxx x xx Golden Alexander Zizia aurea xxxx x x x xx xx Goldenrod, Showy Solidago speciosa x x xxx x x xxx Goldenrod, Stiff Solidago rigida x x xxx x x xxx Great Blue Lobelia Lobelia siphilitica xxxxx xx x x x x xx xxxxWill spread Indigo, White Wild Baptisia alba xxxxx x xxx x xx Bush‐like, tall for a rain garden Indigo, Wild Blue Baptisia australis xxxxx x x x xx Bush‐like, tall for a rain garden Leadplant Amorpha canescens xxxx xxxx x xx Monkey Flower Mimulus ringens xxxxx xx xx x xxx Nodding Onion Allium cernuum xxxxx x xxxxx xx Obedient Plant Physpstegia virginiana xx x x x x x xxxx Prairie Phlox Phlox pilosa xxxxx x x x x x x xxx Prairie Smoke Geum triflorum xx x xxxxxx xx Purple Meadow Rue Thalictrum dasycarpum xxxx x xx xxx xx Can be too tall for a biocell Purple Prairie Clover Dalea purpurea x x x x xxx x x x xxx Rattlesnake Master Eryngium yuccifolium xx x xxx x xx xx Showy Tick Trefoil Desmodium canadense x x xx x x x x xx x Can be too tall for a biocell Silky Aster Symphyotrichum sericeum xxxxx xxxxxxx xx Smooth Blue Aster Symphyotrichum laeve xxxx xxxxxxx xx 1 Recommended Plants for Iowa Rain Gardens, Biocells and Bioswales BMP Use Sun Exposure Soil Moisture Location in BMP Height Blooming Period Comments Berm garden shade of 24" 36" sun ‐ ‐ 12" ‐ Rain Biocell Bioswale Full Part Shade Wet Moist Mesic Dry Bottom Sides Top 6" 12" 24" Common Name Botanical Name >36" April May June July August September October Sneezeweed Helenium autumnale xxxx xx x x xx xxxTall for rain gardens and biocells Solomon's Seal Polygonatum multiflorum variegatum xxxx xxxx x xx Spiderwort, Ohio Tradescantia ohioensis xxxxx x x x x x x x x Will spread;sometimes blooms again in fall Spiderwort, Prairie Tradescantia bracteata xxxx x xxx x xxx Susan, Black‐eyed Helenium autumnale xxxx xxx x x xxxx Susan, Brown‐eyed Rudbeckia triloba xx xxx x xx xxxx Tall for rain gardens and biocells Turtlehead Chelone glabra xxxxxx xx xxx xx Virginia Mountain Mint Pycnanthemum virginianum xxxxx x xxx x x x xxx Western Ironweed Vernonia fasciculata xxx x xx xx xxxCan be too tall for a biocell White Prairie Clover Dalea candida xxxx xxxx x xx Wild Bergamot (bee‐balm) Dalea candida xxxx x xx xxx Can be too tall for a biocell Wild Geranium Geranium maculatum x x x x x x x x x x x x x Will spread Wild Petunia Ruellia humillis x x x x xx x x x x xxx Spreads; grows well along the edge Wild Ginger Ascarum canadense xx x xxxxxx xx Will spread, very unique flower Wild Onion Allium textile xx x xxxxxx xx Winged Loosestrife Lythrum alatum xxxxxxxxxxxxx Native Grasses and Sedges Big Bluestem Andropagon gerardii x x xxxx x x x > 48" tall, spreads Blue Grama Bouteloua gracillis x x x x xxxx x x Can use for turfgrass Bur‐Reed Sedge Carex sparganioides xxx xxxx x xx Eastern Woodland Sedge Carex blanda xx x xx x x xx Indian Grass Sorghastrum xxx xx x x Little Bluestem Schizachyrium scoparium xxxxx xxx x x Prairie Dropseed Sporobolus heterolepis Sedge, Bicknell Carex bicknellii xx xx x xxxx Sedge, Bur Reed Carex sparganioides xx xx x x x x xx Shade conditions Sedge, Brown Fox Carex vulpinoidea xxxxx xx xxx x Sedge, Common Fox Carex stipata xxxxxxxx xx x Sedge, Common Wood Carex blanda xxxx xxxx Shade conditions Sedge, Wooly Carex pellita xxxxx xxxx Could potentially be used as turf Sideoats Grama Bouteloua curtipendula xxxx xxxx x x Switch Grass Panicum virgatum xxxx xxxx x x Can be too tall for a rain garden and biocell Horticultural Cultivar Flowers and Ferns Autumn Joy Sedum Sedum x x x xxxx x x x xxx Balloon Flower Platycodon xx xx xx x x x xx Beebalm Hybrids Monarda xx xx xx x x x xxx Chinese Astilbe Astilbe chinensis 'Pumila' x x x x xx x x xx xx Cinnamon Fern Osmundastrum cinnamomeum xx xx x x x x xx Columbine Hydrids Aquilegia hybrids Coreopsis Coreopsideae x x x x x x x x x x x Deadheading will extend bloom period Hosta Hybrids Hosta x x x x x x xx xx xx Purple Coneflower Echinacea purpurea x x x xx xxxx x x x xxx Siberian Iris Iris sibirica x x xx xx x x x x xx Spike Gay Feather Liatris apicata xx Stella De Oro Day Lilly Hemerocallis 'Stella de Oro' xx xx xx x x x xxxx 2 Recommended Plants for Iowa Rain Gardens, Biocells and Bioswales BMP Use Sun Exposure Soil Moisture Location in BMP Height Blooming Period Comments Berm garden shade of 24" 36" sun ‐ ‐ 12" ‐ Rain Biocell Bioswale Full Part Shade Wet Moist Mesic Dry Bottom Sides Top 6" 12" 24" Common Name Botanical Name >36" April May June July August September October Yarrow, Paprika, Terracotta Achillea hybrids xx x xx xx Ornamental Grasses Fountain Grass Pennisetum alopecuroides xx x xxx x Karl Foerster Calamagrostis acutifora cultivars xx x x xx Switchgrass Panicum virgatum xxxx xxxx x xx Some shorter growing cultivars are available Most recent recommended native plant list provided by the Iowa Stormwater Education Partnership, http://www.iowastormwater.org/. 3.