appearances arid Cacti cactus clumps clusters colorful coloring colors colourful colouring colours contrast contrasting display edge edges flora flowers garden-display garden-plants green irregular leaves light ornamental perennials plants pointed protection shape shapes spiky succulents sunlight surface surfaces textures unusual variations variety various abstract appearance background blue-crown-passionflower blue-passion-flower caerulea climber close-up common-passionflower cultivar cut edible evergreen fast-growing flower foliage food fruit hardy hardy-passionflower open ornamental-passionfruit Passiflora passiflora-caerulea passion-fruit passionfruit pith pulp radial seeds skin strange tasty tendrils tropical-twining-vine vigorous vine beautiful berries decorative duranta garden gardening nature orange outdoors plant poison shrub spring toxic yellow