angles architectural-elements background botanical botany bricks brickwork colors colours evergreens foliage garden grass grassed green greenery height high leaves light open ornamental palms peaceful plants spiky strength strong sturdy surface surfaced surfaces surfacing texture textured textures thick thin tranquil trees variations varied variety vegetation wall walled walls Arecales botanical-garden clipped color colorful colour colourful cut daylight display edges edging flowers gardening groundcover growth hedges landscaping levels perspectives pruned pruning rows shaped shapes shaping shrubbery shrubs suburban suburbs topiary trimmed urban appearance architectural architecture bench bench seat bright building bungalow Colonial contrast cool flora gardens heritage historic history home house pillars pot plants pots potted plants Renovated residence residential shade shadows Singapore stand-out sunlight tropical tropics two-storey visible white window-shutters windows abundant appearances castor-beans castor-oil castor-oil-plant castor-seeds cluster clusters common cotyledons Euphorbiaceae fast-growing flower highly-toxic inflorescences invasive large large-leaves leaf medicinal palm-of-Christ palma-Christi poison poisonous ricinus-communis seed-pods seedhead shrub spiky-green-seed-capsule spiny toxic toxins wasteland-weed weed widespread