abstract abundance abundant angles appearance background blades colors colours edges environment environmental flora foliage grass grasses green greenery ground-cover growing growth light natural nature plants problems property seeds seedy self-seeding suburban-block texture textures unattended undeveloped-land vegetation weeds wild architectural architecture barrier basic brick brick-wall bricks color colour crack cracked cracks damage damaged danger deterioration exterior external garden lean leaning retaining-wall solid split-levels splitting standard strained strength surface surfaces textured uneven wall appearances arid Cacti cactus clumps clusters coloring colouring display edge garden-display garden-plants irregular leaves ornamental perennials pointed protection shape shapes sharp short-spikes small-spines spikes spines spiny succulents unusual