All are grown for their tubular, lipped flowers, which resemble those of honeysuckle (Lonicera) or Salvia. Annual kinds are low plants for edgings or hanging baskets; perennial sorts are larger, vertical-growing plants with flowering stalks that rise above the foliage.Lobelia cardinalis
This perennial is native to the eastern United States and to a few sites in the mountains of the Southwest. Erect, single-stemmed plant grows to 2–4 ft. high and 1 ft. wide. Sawtooth-edged leaves are set directly on the stems. Spikes of flame red, inch-long flowers show up in summer.
From the eastern U.S. Grows to 3–9 ft. tall, 1–3 ft. wide, with a clump of hollow stems se...
Native to much of North America. Upright grower to 10 ft., sometimes treelike to 20 ft. Spreads widely...
This perennial is native to the eastern United States and to a few sites in the mountains of the South...