berries berry bush cultivar food fruit garden hybrid juicy plant red Rubus fruticosus x R. idaeus summer Tayberries Tayberry England english Great Britain leaf leaves natural nature Potentilla anserina serrated silver silverweed South Downs spring Sussex wild blue bluebells bulb deciduous flower green Hyacinthoides Surrey trees woodland Campanula andrewsii creeping flowers Greece Greek mauve Mystras perennial rock plant trumpet violet wall beach brassicaceae coastline Crambe maritima gravel kale kent sea shingle shore Caryophyllaceae Devon little petals small Stellaria stichwort tiny verge white old path petal pink rambling rosa rose stone cowslips downland hillside Primula veris Primulaceae yellow