Hillside plants

Almost our entire garden is a hillside, because we live in Laurel Canyon. Hillside gardening can be challenging, because use of sprinklers causes erosion and as much as one uses drought-tolerant plants, the summer get very, very hot here (and we're in a serious drought). Manzanita, ceanothus, salvias, trailing rosemary all work well and there is a marvellous list here of good slope plants for Southern California. Dot with agapanthus, lamb's ear, fischer geraniums for good measure. Zymbidiums are planted in the garden as their flowers die in the house, and I've now started a patch of garden, just for them, outside my kitchen door.