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The lobelias are a large group of plants, with more than 40 species native to North America. Lobelia siphilitica is found widely throughout the eastern and central U.S. Its typical native habitat ...
Lobelia erinus in an alpine border. Lobelia (/ l oʊ ˈ b iː l i ə, l ə-/ [4] [5] [6]) is a genus of flowering plants in the family Campanulaceae comprising 415 species, [7] with a subcosmopolitan distribution primarily in tropical to warm temperate regions of the world, a few species extending into cooler temperate regions. [8]
Lobelia erinus is a very popular edging plant in gardens, especially for hanging baskets and window boxes. In temperate zones it is grown as a half-hardy annual, i.e. sown under glass with some heat in spring, then planted out when all danger of frost has passed.
Place the bulbs in the soil with the pointed sides up, making sure to plant each bulb close together. Cover small bulbs with a 1/2-inch of soil and larger bulbs up to their tips. Water the bulbs well.
Lobelia urens is more or less hairless perennial and can grow up to 60 cm tall. It has rhizomes. The leaves are obovate at the base, and linear to oblong higher up. They are shiny dark green and toothed. They have very short stalks. The calyx teeth are long and very narrow. The flowers are up to 1.5 cm long, blue-purple.
Tulips, daffodils, hyacinths, crocus and other species are all excellent addition choices.