"nose-tweaker" "nose-twister" annual bright common companion plants edible fast-growing green greenery herbaceous herbaceous flowering plant leafe leaves light nasturtium ornamental ornamental flower ornamental salad ingredient plant prolific sunlight sunshine surface texture textures tropaeolum veined veins abstract appearance Australian backdrop background coloring colors colouring colours cool curling curls decorative density ferns flora foliage fronds horticultural horticulture light-green lighting nature patterns plants reflecting reflection screen shade shadows shapes spread spreading undergrowth variation vegetation wallpaper philodendron autumn autumn-colors autumn-colours autumnal brittle brown color colored colorful colour coloured colourful contrasts dark death deciduous dry dying edge edges exotic fall golden leaf maroon orange red russet rust rusty seasons variations yellow yellowish