Size: 4-6″ tall by 8-12″ wide
USDA hardiness zones: 4(3)-9
Sun/shade: 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.
Diseases and pests: none known
Landscape use: dry to moist shade, shady slopes, stream banks, shade containers, shade hanging baskets.
Market appeal/Uniqueness: Wissahickon brightens up dark, shady areas with it’s shiny foliage. Pure white blooms emerge from peachy-pink buds in late spring and bloom consistently through late July and even into August. A slower spreader, this new selection is great for under planting in areas where large, evergreen shrubs have shaded the area beneath them.
Propagation methods: tissue culture, vegetative cuttings
Date of introduction: January, 2009
Bloom time: April to July
From the superior breeding genetics of Sinclair A. Adam, Jr. of Dunvegan Nurseries, 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 pulmonrias, 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.