perennial bloom times for common flowers in wisconsin ftimg

Clients often stop in and request a list of perennial bloom times. It’s common for gardeners to plan for the upcoming year. Knowing the times when your perennials bloom helps create a design with color during each season.

Remember, beauty in the garden isn’t all about flowers. We encourage gardeners to consider how plants look when not in bloom since they’ll look that way for some of the growing season. Achieving a diverse garden of year-round interest means giving equal consideration to attractive foliage, texture, growth habit, and wildlife value.

Wisconsin native perennials are bolded. Keep in mind there may be native options of the plants that aren’t bolded.

Bloom Times for Sun-loving Perennials

Spring (April-May)

  • Sea Thrift (Armeria)
  • Bulbs (Early season ”minor” bulbs, Daffodils, Camassia, Leucojum, Tulips)
  • Marsh Marigold (Caltha palustris)
  • Shooting Star (Dodecatheon)
  • Dianthus (Pinks)
  • Prairie Smoke (Geum)
  • Creeping Phlox (Phlox subulata)
  • Golden Alexander (Zizia aurea)

Summer (June-August)

  • Yarrow (Achillea)
  • Ornamental Onion (Allium)
  • Bluestar (Amsonia)
  • Hyssop (Agastache)
  • Lead Plant (Amorpha)
  • Butterfly Weed/Milkweed (Asclepias)
  • False Indigo (Baptisia)
  • Calamintha (Calamintha ‘Montrose White’)
  • Bell Flower (Campanula)
  • Wild Senna (Cassia)
  • Tickseed (Coreopsis)
  • Prairie Clover (Dalea)
  • Dianthus (Pinks)
  • Purple Coneflower (Echinacea)
  • Blanketflower (Gaillardia)
  • Geranium/Cranesbill (Geranium)
  • Daylily (Hemerocallis)
  • Siberian Iris (Iris sibirica)
  • Blue Flag Iris (Iris versicolor)
  • Gayfeather/Blazing Star (Liatris)
  • Daisy (Leucanthemum)
  • Lily (Lilium)
  • Cardinal Flower (Lobelia cardinalis)
  • Beebalm (Monarda)
  • Catmint (Nepeta)
  • Peony (Paeonia)
  • Beard Tongue (Penstemon)
  • Summer Phlox (Phlox paniculata & maculata)
  • Balloon Flower (Platycodon)
  • Yellow Coneflower (Ratibida)
  • Wild Petunia (Ruellia)
  • Perennial Salvia (Salvia)
  • Blue Eyed Grass (Sisyrinchium)
  • Betony (Stachys)
  • Veronica (Veronica)
  • Culver’s Root (Veronicastrum)

Autumn (August-October)

  • Aster (Aster)
  • Calamintha (Calamintha ‘Montrose White’)
  • Hardy Mum (Dendranthemum)
  • Joe-Pye-Weed (Eupatorium)
  • Perennial/Dinner Plate Hibiscus (Hibiscus)
  • Russian Sage (Perovskia)
  • Obedient Plant (Physostegia)
  • Ornamental Grasses
  • Black-Eyed-Susan (Rudbeckia)
  • Sedum (Sedum)
  • Compass Plant/ Prairie Dock (Silphium spp.)
  • Goldenrod (Solidago)
  • Ironweed (Vernonia)

Bloom Times for Shade-loving Perennials

Spring (March-May)

  • Spring Anemone (Anemone sylvestris)
  • Columbine (Aquilegia canadensis)
  • Jack-in-the-Pulpit (Arisaema triphyllum)
  • Goatsbeard (Aruncus dioicus)
  • Pigsqueak (Bergenia)
  • Perennial Forget-me-Not (Brunnera)
  • Bulbs (Early season ”minor” bulbs, Daffodils, Camassia, Leucojum, Tulips)
  • Bleeding Heart (Dicentra)
  • Lenten Rose (Helleborus)
  • Foamy Bells (x Heucherella)
  • Virginia Bluebells (Mertensia)
  • Variegated Solomon’s Seal (Polygonatum odoratum ‘Variegata’)
  • False Solomon’s Seal (Maianthemum)
  • Periwinkle (Vinca)

Summer (June-August)

  • Lady’s Mantle (Alchemilla)
  • Dwarf Goatsbeard (Aruncus aethusifolius)
  • Astilbe (Astilbe)
  • Morningstar Sedge (Carex grayii)
  • Northern Sea Oats (Chasmanthium latifolium)
  • Big Root Geranium (Geranium ‘Bevans’)
  • Hosta (Hosta)
  • Spotted Dead Nettle (Lamium ‘Chequers’)
  • Ligularia (Ligularia)
  • Great Blue Lobelia (Lobelia siphilitica)
  • Meadowrue (Thalictrum)
  • Spiderwort (Tradescantia)

Autumn (August-October)

  • Fall Blooming Anemone (Anemone)
  • Monkshood (Aconitum)
  • Spikenard (Aralia)
  • Big Leaf Aster (Aster/Eurybia macrophyllus)
  • Plumbago (Ceratostigma)
  • Turtlehead (Chelone)
  • Snakeroot/Bugbane/Fairy Candles (Actaea)
  • Autumn Bride Coralbells (Heuchera ‘Autumn Bride’)
  • Yellow Wax Bells (Kirengeshoma)
  • Zigzag Goldenrod (Solidago flexicaulis)
  • Toad Lily (Tricyrtis)