Lobelia

This genus of 370 species of annuals, perennials and shrubs is widely distributed in temperate regions, particularly the Americas and Africa. Growth habits vary from low bedding plants to tall herbaceous perennials or shrubs. They are all grown for their ornamental flowers and neat foliage and make excellent edging, flower box, hanging basket and rock-garden specimens. Some are suitable in wild gardens or by the waterside.

Insider's secret

These frost-hardy to somewhat frost-tender plants are best grown in well-drained, moist, light loam enriched with animal manure or compost. Most grow in sun or art-shade but resent wet conditions in winter. Prune after the first flush of flowers to encourage repeat flowering, and fertilize weekly with a liquid manure during the season. Propagate annuals from seed in spring, perennial species from seed or by division in spring or fall and perennial cultivars by division only. Transplant form late fall until early spring.

Lobelia cultivar

Lobelia cardinalis (Cardinal flower)