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Pure white blooms emerge from peachy-pink buds.

Tiarella River™ Wissahickon

This tiarella or foam flower has the glossiest leaves we have ever seen. It is also one of the lowest growing native groundcovers.

From the superior breeding genetics of Sinclair A. Adam, Jr. we present you with Tiarella cordifolia ‘Wissahickon’, another fine addition to The River Series of truly East Coast native foam flowers. Wissahickon bears the shiniest foliage and is the longest blooming of the series. A slower spreader, Wissahickon grows four to six inches tall and spreads up to eight inches the first growing season. The glossy, grass green foliage remains well into the winter months and blooms begin in late April and continue into late July.

Wissahickon’s foliage remains semi-evergreen until March, when it is overgrown by new foliage. This new selection mixes well with pulmonarias, brunneras and Virginia blue bells to make a fantastic, long blooming mosaic carpet. Other, clumping foam flowers (Tiarella sp.), early spring bulbs, coral bells (Heuchera sp.), bleeding hearts (Dicentra sp.), summer blooming perennials and low growing, clumping grasses also make interesting companion plants for this selection.

Please note: We don't sell plants. Asking your local retailer or googling the plant name is the easiest way to find someone selling our plants.

Please note: Download hi-res photos from the photo gallery at the bottom of the page.


Who Am I?

  • Common Name

    Wissahickon foam flower
  • Botanical Name

    Tiarella cordifolia 'Wissahickon' PP21963

Cultural Details

  • Bloom Time

    April to July
  • Size

    4-6″ tall by 8-12″ wide
  • Hardiness Zone

    4(3)-9
  • Light

    full to part shade
  • Soil

    average garden soil
  • Moisture

    would love to have moist, organic soil, but also grows well in dry soil with lots of rot competition.
  • Disease & Pests

    none known
  • Landscape Use

    dry to moist shade, shady slopes, stream banks, shade containers, shade hanging baskets.
  • Propagation

    Cuttings, Tissue Culture

Available Photos

Hover over images to download hi-res files.