What’s in Bloom?

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. An approximate date will be listed once bloom has begun (this does not reflect peak bloom). For native plants, additional location might also be listed. 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 (Skunk Cabbage Wetlands)
  • Toothwort (Cardamine concatenata): April–May / bloomed April 23 (Wingra Oak Savanna), April 28 (NPG)
  • Trout-lily (Erythronium spp.): April–May / bloomed April 2 (Wingra Oak Savanna)
  • Hepatica (Anemone acutiloba): April / bloomed April 20 (NPG), April 24 (Gallistel)
  • Pasqueflower (Anemone patens): April / bloomed April 28 (NPG)
  • Prairie-smoke (Geum triflorum): April-May / bloomed May 2 (NPG)
  • Bloodroot (Sanguinaria canadensis): April–May / bloomed April 24 (NPG and Wingra Oak Savanna)
  • Wild ginger (Asarum canadense): April–June / bloomed May 8 (NPG)
  • Dutchman’s breeches (Dicentra cucullaria): April–May / bloomed April 27 (NPG)
  • Virginia bluebellsMertensia virginica): April–May / bloomed May 6 (NPG)
  • Woodland phlox (Phlox divaricata): May–June / bloomed May 8 (NPG)
  • Wild geranium (Geranium maculatum): May–June / bloomed May 9 (NPG)
  • Trillium (Trillium spp.): May (bloomed May 9 (Gallistel Woods)
  • Shooting star (Dodecatheon meadia): May / bloomed May 8 (NPG)
  • Wild lupine (Lupinus perennis): May–June / bloomed May 17 (NPG)
  • 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 / bloomed May 2
  • Magnolias (Magnolia spp.): April–May / bloomed April 24 / peak est. May 4–11
  • Crabapples (Malus spp.): April–May / bloomed May 7 / peak est. May 15–23
  • Lilacs (Syringa spp.): April–May / bloomed May 7 / peak est. May 17–27
  • Rhododendrons and azaleas (Rhododendron spp.): mid-April–May / bloomed May 4
  • Horsechestnut/Buckeyes (Aesculus spp.): mid-May / bloomed May 14
  • 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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