Lobelia Flower Time. 15022020 The foliage and flowers are delicate but lobelia flowers in abundance blooming all summer right until frost. Perennial and in Japan treat grass as annual on gardening plant.
Lobelia is a hardy versatile flowering plant available in a number of forms and colors. They thrive in partial or full-shade and in loamy well-drained soils. Do the major pruning or cutting back after the plants stop blooming.
In zone 3-9 from summer to early fall.
However during the summertime the sun can be too strong for these delicate beauties which is why putting them in shade is important. Any good moist fertile soil chalk clay sand or loam. Blue lilac-pink purple white cherry-red. Flowering August to September.