A welcome burst of colour in early spring aubrieta cultorum 39cascade purple39 becomes smothered in vibrant purple flowers from march onwards and is the perfect compliment to spring flowering bulbs such as daffodils crocuses and cyclamen with a spreading mat45forming habit this evergeen perennial is superb for rock gardens spilling over sunny banks patio containers or as a ground cover plant in hot dry borders aubretia flowers are also an excellent source of spring nectar for po