Vetches, of the legume (pea) family can be hard to tell apart so here are a couple of common, easy purple ones. Tufted Vetch is the deepest purple, with many long flowers growing up one side of the stem. Favouring damp areas it needs plants to scramble up through. Using its spiral tendrils, as do the other vetches, it grows as high as 2 metres in places. Great for pollinating bumble bees, it’s relatively large seeds are a favourite of birds (and some humans! Must be tedious to collect). Bush Vetch, as its name suggests, is altogether broader and squatter– scrambling in tangles through low vegetation, with broader leaves and clusters of flowers which vary more in colour, from clover to purple and blue. We have some on the garden- bees love it, too. Conditions: Foggy and wet. Temperature: Max 18- Min 14C.