Very graceful, slender stalks 35-45 cm (14-18″) tall are loaded with dainty bell-shaped flowers nicely presented high above the bright green, heart-shaped foliage. Plants bloom for an extended period from late May through August in full sun to partial shade. A great plant for rockeries or borders. Hardy to Zone 3.
How to Grow
Start seed indoors in a soil-less mix anytime from January to mid-March. Germinate at 18 C (65 F) then grow on under lights at the same temperature before hardening off and transplanting to a sunny to partially shady site in the garden. Outdoors, direct garden sow seed during May and again in late August for bloom the following spring.