The Lobelia Cambridge Blue, 'Lobelia erinus', is a low growing ground cover with soft, clear, light blue flowers massed over the top of the plant. The foliage is not often seen because of all the flowers which bloom from spring to fall. In mild winter areas, Lobellia will grow and bloom during the winter. The light blue flowers are 1/4 inch tubular blooms. The Cambridge Blue catches your eye with dazzling, vibrant color whether in a pot, a rock garden, a border, or a basket.
Cambridge Blue Lobelia prefers full sun. In extremely hot summer locations, some afternoon shade is recommended. Place the Lobelia in fertile, rich, well drained soils and keep the soil moist. Plant in the spring after the last average frost date or late summer in warmer climates. Lobellia take a long time to germinate, so consider starting them inside.