Lobelia cardinalis Black Truffle (PP25687) is wonderful in the perennial border and perfect for rain gardens, this cardinal flower is sure to stand out with its dramatic, dark chocolatey-purple foliage and bold red flowers. Superior to other dark-foliaged Lobelias on the market, ‘Black Truffle’ holds this deep color throughout the growing season. A magnet for hummingbirds and butterflies all summer, but deer tend to leave it alone. Introduced by Peter Heus and brought to market by Plants Nouveau.
Black Truffle needs consistant moisture, even tolerating brief flooding. Soil should never be allowed to dry out. It will tolerate full sun in cool, northern climates, but otherwise appreciates part shade. Root mulch should be applied in cold winter climates to protect the root system and to prevent root heaving. Mulch will also help retain soil moisture.
A Northern Sunset Perennial, it prefers rich, moist to wet soils in part shade to full sun.
Image courtesy of Plants Nouveau