blue border deep delphiniums England english flowers garden Great Britain natural nature perennial petals spikes summer background cultivar flower pink plant Polygonum stalk texture cloud fresh grass green landscape sky South Downs Sussex conifer forest narrow pine plantation shadow sunlight tall thin tree trunk wood lush madeira mountain mountains panorama trees tropical vegetation view volcanic brown developing monocotyledon seedheads young coastal field homes houses Lofoten Islands meadow norway norwegian wild yellow Asparagaceae grape hyacinth Italy Liliaceae little muscari small spring tiny beach coast dune ecology flora habitat sand soft Spain