University of Illinois Extension

Perennials By Blooming Period

March Blooming Perennials

  • Winter Aconite–Eranthis hyemalis
  • Myrtle Spurge–Euphorbia myrsinites
  • Snowdrops–Galanthus nivalis
  • Christmas Rose–Helleborus niger
  • Lenten Rose–Helleborus orientalis
  • Bloodroot–Sanguinaria canadensis
  • Spring Beauty–Claytonia virginica

April Blooming Perennials

  • Bugleweed–Ajuga reptans
  • Basket of Gold–Aurinia saxatilis
  • Pasque Flower–Pulsatilla vulgaris
  • Rock Cress–Arabis caucasica
  • Purple Rockcress–Aubretia deltoidea
  • Glory-of-the-Snow–Chionodoxa luciliae
  • Old-fashioned Bleeding Heart–Dicentra spectabilis
  • Fringed bleeding Heart–Dicentra eximia
  • Candytuft–Iberis sempervirens
  • Netted Iris–Iris reticulata
  • Grape Hyacinth–Muscari armeniacum, M. botryoides
  • Creeping Phlox–Phlox subulata
  • Squill–Scilla siberica
  • Early Tulips, Narcissus, and Hyacinth
  • Virginia Bluebells–Mertensia virginica
  • Jack-in-the-Pulpit–Arisaema triphyllum
  • Marsh Marigold–Caltha palustris
  • Trout Lily–Erythronium americanum
  • Prairie Smoke–Geum triflorum

May Blooming Perennials

  • Lady’s Mantle–Alchemilla mollis
  • Common Columbine–Aquilegia canadensis
  • Columbine–Aquilegia x hybrida
  • Sea Pink–Armeria maritima
  • Blue False Indigo–Baptisia australis
  • Mountain Bluet–Centaurea montana
  • Snow-in-Summer–Cerastium tomentosum
  • Delphinium–Delphinium x elatum
  • Cottage Pink–Dianthus plumarius
  • Gas Plant–Dictamnus albus
  • Leopard’s Bane–Doronicum orientale
  • Peony–Paeonia hybrids
  • Oriental Poppy–Papaver orientale
  • Wild Geranium–Geranium maculatum
  • Wild Ginger–Asarum canadense
  • Golden Alexander–Zizia aurea
  • Wild Sweet William–Phlox divaricata

June Blooming Perennials

  • Astilbe–Astilbe spp.
  • Silver Mound Artemisia–Artemisia schmidtiana ‘Silver Mound’
  • Silver King Artemisia–Artemisia ludoviciana ‘Silver King’
  • Carpathian Harebell–Campanula carpatica
  • Peach-Leaf Bellflower–Campanula persicifolia
  • Blanket Flower–Gaillardia x grandiflora
  • Coral Bells–Heuchera spp.
  • Rock Soapwort–Saponaria ocymoides
  • Pincushion Flower–Scabiosa caucasica
  • Stokes Aster–Stokesia laevis
  • Spiderwort–Tradescantia x andersoniana
  • Veronica–Veronica spicata, V. longifolia
  • Pale Purple Coneflower–Echinacea pallida
  • American Bellflower–Campanula americana

July Blooming Perennials

  • Fern-leaf Yarrow–Achillea filipendulina
  • Common Yarrow–Achillea millefolium
  • Blackberry Lily–Belamcanda chinensis
  • Bugbane–Cimicifuga simplex
  • Tickseed–Coreopsis grandiflora
  • Threadleaf Coreopsis–Coreopsis verticillata
  • Purple Coneflower–Echinacea purpurea
  • Globe Thistle–Echinops ritro
  • Sea Holly–Eryngium amethystinum
  • Babys Breath–Gypsophila paniculata
  • Helen’s Flower, Sneezeweed–Helenium autumnale
  • Sunflower Heliopsis–Heliopsis helianthoides
  • Hibiscus–Hibiscus moscheutos
  • Hosta, Plantain Lily–Hosta spp.
  • Blazing Star–Liatris spicata
  • Sea Lavender–Limonium latifolium
  • Cardinal Flower–Lobelia cardinalis
  • Bee Balm–Monarda didyma
  • Russian Sage–Perovskia atriplicifolia
  • Garden Phlox–Phlox paniculata
  • False Dragonhead–Physostegia virginiana
  • Butterfly Weed–Asclepias tuberosa
  • Rattlesnake Master–Eryngium yuccifolium
  • Great Blue Lobelia–Lobelia siphilitica
  • Culver-Root–Veronicastrum virginicum
  • Pink Turtlehead–Chelone glabra
  • Balloonflower–Platycodon grandiflorus
  • Perennial Blue Salvia–Salvia x superba

August Blooming Perennials

  • Monkshood–Aconitum napellus
  • New York Aster–Aster novii-belgii
  • New England Aster–Aster novae-angliae
  • Leadwort–Ceratostigma plumbaginoides
  • Garden Mum–Dendranthema x grandiflora
  • Red Hot Poker–Kniphofia hybrids
  • Joe-Pye Weed–Eupatorium maculatum
  • Closed Gentian–Gentiana andressii
  • Black-Eyed Susan–Rudbeckia fulgida var. sullivantii ‘Goldsturm’
  • Showy Sedum–Hylotelephium x ‘Autumn Joy’

September-October Blooming Perennials

  • Monkshood–Aconitum
  • Aster–Aster
  • Coreopsis–Coreopsis
  • Bleeding Heart–Dicentra eximia
  • Purple Coneflower–Echinacea
  • Globe Thistle–Echinops
  • Blanket Flower–Gaillardia
  • Sneezeweed–Helenium
  • Phlox–Phlox
  • Balloon Flower–Platycodon
  • Black-Eyed Susan–Rudbeckia
  • Sedum–Hylotelephium