Hardy Gloxinia, Incarvillea Delavayi is a hardy perennial that has stunning tropical looking light purple flowers with fabulous fern-like foliage. It can be planted in patio pots, beds and borders. It needs a well-drained, sunny, or partial-shaded position to flourish. Flower stems will grow to roughly to 50-60cm whilst the fern like foliage will become thick and strong with a spread of approx. 30cm. Dead heading spent blooms will prolong its flowering period, this will range from mid spring to mid summer.