That said, this variety will eventually outgrow these locations. The only exception here is the slow-growing ‘Nana’ variety, which is perfect for keeping in a pot on your balcony or patio when they are still young. Indian bean trees are generally fast-growers. The heart-shaped leaves are large, growing up to 20cm long. The tree also has a thick, short trunk and a spreading crown. Successfully fertilised flowers form elongated bean pods. There are also purple spots that run alongside the yellow stripes. Indian bean tree flowers are showy, trumpet-shaped and white with two yellow stripes down the length of the funnel. Admired in parks and gardens as an ornamental tree or shrub, the Indian bean tree’s first flower buds appear in May and they begin to bloom in June. The Indian bean tree ( Catalpa bignonioides) is native to the south-eastern region of continental North America and can grow up to 18m tall. Indian bean tree origin and characteristics
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