What’s in Bloom?

April 11, 2018
Skunk cabbage in Wingra Woods

Skunk cabbage in Wingra Woods

This is a selective list of popular blooming plants in the Wisconsin Native Plant Garden (NPG), Longenecker Horticultural Gardens (LHG), and woodlands, prairies, savannas, and wetlands. Estimated bloom dates can change due to weather. A specific date will be listed after the estimated date range once bloom has begun. Dates will be updated weekly.

Native Plants

Native plants generally bloom in the garden earlier than the same plants growing in the natural areas.

  • Skunk cabbage (Symplocarpus foetidus): February–April / bloomed March 18
  • Toothwort (Cardamine concatenata): April–May
  • Trout-lily (Erythronium spp.): April–May
  • Hepatica (Anemone acutiloba): April
  • Pasqueflower (Anemone patens): April
  • Prairie-smoke (Geum triflorum): April-May
  • Bloodroot (Sanguinaria canadensis): April–May
  • Wild ginger (Asarum canadense): April–June
  • Dutchman’s breeches (Dicentra cucullaria): April–May
  • Virginia bluebells ( Mertensia virginica): April–May
  • Woodland phlox (Phlox divaricata): May–June
  • Wild geranium (Geranium maculata): May–June
  • Trillium (Trillium spp.): May
  • Shooting star (Dodecatheon meadia): May
  • Wild lupine (Lupinus perennis): May–June
  • Indigos (Baptisia spp.): May–July
  • Spiderwort (Tradescantia ohiensis): late May–June
  • Milkweed (Asclepias spp.): June–August
  • Purple coneflowers (Echinacea spp.): June–July
  • Prairie-clover (Dalea spp.): July–August
  • Blazing-stars (Liatris spp.): July–September
  • Sunflowers (Helianthus spp.): July–October
  • Gentians (Gentiana spp.): August–October
  • Asters (Symphyotrichum spp.): August–October

Longenecker Horticultural Gardens

  • Cherries (Prunus spp.): early to mid-April
  • Magnolias (Magnolia spp.): April–May
  • Crabapples (Malus spp.): April–May
  • Lilacs (Syringa spp.): April–May
  • Rhododendrons and azaleas (Rhododendron spp.): mid-April–May
  • Horsechestnut/Buckeyes (Aesculus spp.): mid-May
  • Roses (Rosa spp.): June
  • Catalpa (Catalpa spp.):  June
  • Hydrangeas (smooth, H. arborescens; panicle, H.  paniculata): late June–July
  • American Chestnut (Castanea dentata): late June–early July
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