bright brilliant color colored colorful colors colour coloured colourful colours cultivar display flora floral flowering plant flowers foliage garden flower garden plant light nature orange ornamental petals plants shade shadows shrub sunlight sunshine variety white appearances arid Cacti cactus clumps clusters coloring colouring edge edges frilled frills garden-display garden-plants green irregular leaves perennials pointed protection ribbed ribbing ribs shape shapes sharp short-spikes small-spines spikes spines spiny succulents surface surfaces textures unusual variations various barrel barrel-cactus round symmetry calcium-carbonate decoration decorative distinctive flower-dome formation forms garden inverted shaped Singapore Stalactite stalactites upside-down angles architectural-elements bush-park bushland bushland-gardens creeper evergreens gardens grass grassed ground-cover height high historic historical history ivy native-plants old open park parkland paths peaceful public rocks stonework strength strong sturdy style tracks tranquil trees wall arrangements below blooms bulbs companion-flowers displayed dome exotics fountains garden-flowers horticultural horticulture hyacinths perennial purple tiles tulips sky