bushes Calluna England english flora flowers Frensham Common Great Britain heath heather heathland landscape ling natural nature pink purple summer Surrey wild bush cloud crataegus farm fence field green hawthorn meadow peace sky South Downs spring Sussex track valley bulbs cluster early February Galanthus garden group hanging pendulant perennials petals plants snowdrops white blue bluebells coastline Hyacinthoides island Pembrokeshire sea ship Skomer tanker united kingdom wales water welsh campion maritima Silene uniflora background cape plumbago climbers hedge light blue plumbago auriculata plumbago. fast-growing shrubs sky blue textures woody stemmed Aster Buddleia butterflies Ceratostigma Cimicifuga Clethra Cotoneaster Hebe Helichrysum Hemp agrimony insect ivy marigold Michaelmas Daisy mint nettles Sedum Vanessa atalanta verbena trees