deep red ornamental grass, by the name imperata cylindrica rubra, japanese blood grass or cogon grass, at rhs wisley, uk

autumn colours leaves autumnal beautiful biodiversity botanical botany bright changing colour colorful colourful deep early england english garden environment flora foliage fresh gardening horticultural horticulture landscape multi colored natural beauty nature october orange perennials picturesque pretty scenery season change serene surrey texture fall vibrant wisley grass rubra cogon japanese blood imperata cylindrica