Cornus suecica Dwarf Cornel flowers green herb leaf leaves montane natural nature norway norwegian petals plant rock white wild bloom blossom blue deep blue flower phyteuma orbiculare purple round head rampion round headed rampion violet wild flower bulbs England english February Galanthus garden Great Britain hanging pendulant perennials plants snowdrops spring Sussex background Cornish cornwall germander speedwell Veronica chamaedrys Buckinghamshire Dark Mullein Scrophulariaceae spikes summer Verbascum nigrum yellow Armeria maritima coast flora May pink red thrift Asparagaceae coastal Scilla verna squill bells bluebells Hyacinthoides pendant dew drop fresh macro rose water bold bright petal sky stalk stamen stem vivid