bush England english flowers garden Great Britain lilac natural nature pink plant shrub spikes spring syringa african arid Cacti cactus clumps clusters coloring colors colouring colours display distinctive edge edges flora garden-plants green greenery irregular leaves light ornamental patch perennials plants pointed protection ribbed ribbing ribs section shade shape shapes sharp short-spikes small-spines spines spiny succulents sunlight surface surfaces texture textures unusual variations variety cultivar elegant long Persicaria Polygonaceae red smartwood summer tall thin blue border deep delphiniums perennial petals appearances colorful colourful frilled frills garden-display barrel barrel-cactus round animal cute eyes face fluffy Hedgehog little nose paws pygmy small spike spiky white wildlife