England english forest Great Britain green hill hilltop landscape natural nature spring Sussex trees view woodland boulder canada coastline danger hazard island ocean pacific rock treacherous treachery Vancouver Island water boundary drystone farm field north northern wall abundance abundant allium flower garden grow head many mauve onion pink plant profusion stems cold crystals freeze freezing frost frozen growth hoar ice icy post white winter wooden Centaurium erythraea centaury Gentianaceae herb tiny wild alone daisies daisy flowers isolated lone one papaver poppy red single Spain blackthorn blackthorn flower bush Prunus spinosa shrub autumn bark conifer evergreen fall giant huge ornamental redwood Sequoia sempervirens tree trunk Ammophila beach Cornish cornwall dunes marram grass sand shore yellow