Below—A herbaceous border of dianthus species softens the hard lines of the concrete. The wall suffers from lack of planting holes, with the result that an impression is created of a solid massed effect of unbroken flower border from the edge of the path. Below right-After one season's growth trailing plants put out in a border at the top of the ugly concrete wall have clothed it to a depth of 3 to 4ft. The plant on the corner is Convolvulus mauritanicus. The other plants are mesembryanthemum (Livingstone daisy) species. If planting holes had been put into this wall, the plants would have covered the whole of the wall and other than trailing plants could have been used to give treble the interest to the wall.

New Zealand Journal of Agriculture, Volume 87, Issue 2, 15 August 1953, Page 173

Below —A herbaceous border of dianthus species softens the hard lines of the concrete. The wall suffers from lack of planting holes, with the result that an impression is created of a solid massed effect of unbroken flower border from the edge of the path. Below right-After one season's growth trailing plants put out in a border at the top of the ugly concrete wall have clothed it to a depth of 3 to 4ft. The plant on the corner is Convolvulus mauritanicus. The other plants are mesembryanthemum (Livingstone daisy) species. If planting holes had been put into this wall, the plants would have covered the whole of the wall and other than trailing plants could have been used to give treble the interest to the wall.