This magnificent Impatiens tinctoria was a gift from The Kernow Kid. What is indisputable from this photo is the beauty of the butterfly flowers, exotic and fragrant, purest white blotched ominously with venous scarlet. What is not so obvious is that at present this tuberous perennial is 2m tall. Basically it is a Busy Lizzy on steroids. In ideal conditions, in the high altitude of African rainforests, its bamboo like stems can reach a staggering 4m. It is much hardier here that its appearance would suggest, supposedly taking -6C, although a contingency cutting in the greenhouse and a mulch in winter is probably advisable. It does not have the thuggish nature of its relative, the onward marching Himalayan Balsam, in fact it does not set seed readily. In Ethiopia red dye is made from the root, hence its species name tinctoria. It is a great addition to the dappled shade in the Cherry Tree border, where hopefully it will remain for many years. Unless we have an urgent need for red dye of course.