These annuals and perennials bear one-sided clusters of lobelia-like blooms in brilliant blue, violet, or white; blue and violet flowers are more striking because of a contrasting white eye or throat. Plants bloom profusely in warm shade or filtered sunlight. Graceful in hanging baskets or containers. Fine cut flowers.
You can lift vigorous plants in fall, cut back, and pot; new growth will produce flowers through winter in warm spots. Usually sold as seeds.
Sprawling plant to 1–2 ft. tall and nearly a foot wide. Flowers are dark purple above and pale lilac beneath; they grow to 1 1/2–2 in. across. Can be grown as an annual anywhere.
Once classified with eastern American silver bell (Halesia), to which they ...
The trunk is enlarged toward the base.
From forests and low mountains of Japan. This plant grows in clumps to 2 1/2 ft. high, 1 1/2 ft. wide,...