These days plants are 'container grown' which means they are growing in a large black plastic pot of compost. Hence they can be planted anytime of the year, however if planted now they will need regular watering through the summer. Look for a sunny place where they will have room to grow, enrich the soil with compost or well rotted manure. Then all you need is the plant, some years ago I planted some M. liliflora x stellata hybrids, these are a best of both worlds, having large colourful showy flowers - yet not growing to big. They were bred in U.S National Arboretum Washington back in the 1950's and have names like Susan, Ricky, Pinky and Ann.
