Johnson's Blue Hardy Geranium

Its clear periwinkle-blue discs, each almost 2" across, appear for weeks above finely cut palmate leaves that ignite orange and red come autumn. This vigorous bushy geranium is a winner of the Royal Horticultural Society’s Award of Garden Merit, so you know it performs. Plant it to weave through borders, spill from containers or knit a low weed-suppressing carpet. Deer rarely bother it and little care is required.