"Ficus elastica (Rubber plant) will be easier to find. In the meantime, here is a brief list of shrubs or tall perennials that would make great fence-line plantings in Zone 10. They are readily available from www.highcountrygardens.com.
Cortaderia selloana 'Pumila' (Dwarf Pampas Grass)
Salvia reptans (West Texas Grass Sage)
Helianthus maximiliana 'Santa Fe' (Santa Fe sunflower)
Caryopteris x canadensis 'Longwood Blue'
Jasminum nudiflorum (Weeping Winter Jasmine)
Philadelphus microphyllus 'June Bride' (Mock Orange)
Buddleia davidii (Butterfly Bush)"