Short to medium, dense, fast-growing evergreen hedges, appropriate for zone 9:

Laurel

According to C.G.J.Mathias & Son:

“Laurel is a most useful hedging plant because it grows happily in shade and puts up with dry sites. …an effective barrier laurel is to roads. Its density is an excellent sound absorber as well as physical screen. Although laurel will withstand clipping, it is preferable to prune with secateurs since the leaves are rather too large for hedge clippers to make a good job.”

Elaeagnus

(Elaeagnus pungens ‘Fruitlandii’)

“Thorny elaeagnus is fast growing, easy to care for and tolerant of a wide variety of conditions.”–floridata.com

Privets

“Japanese and glossy privet are moderately salt tolerant but should not be used where subjected directly to salt spray. Variegated Chinese privet is not salt tolerant.”–hort.ufl.edu

Variegated Privet (Ligustrum sinensis ‘Variegata’)

“While your first reaction to privet may be negative, James suggests that this particular variety is far more attractive than the more familiar, overplanted, solid green form. “And in my experience, it’s far less inclined to reseed all over the place.” Unfortunately this plant is only marginally hardy in USDA Zone 6; northward, it can be grown as an annual but in zones wamer than 7, it’s evergreen. Variegated privet can ultimately grow to 15 feet, or it can be pruned back to a shorter height.”–hgtv.com

Wax Leaf Ligustrum aka Japanese Privet (Ligustrum japonicum / lucidum)

“This is an evergreen shrub with a compact growth habit to 10 feet high and 5 to 6 feet wide. The foliage is 2 to 4 inches long and rather leathery. The oval leaves are glossy green above and almost white beneath. The white flowers appear in May and have a very strong odor, which may be offensive to some people.”–clemson.edu

Escallonia

“Escallonia ‘Apple Blossom’, which is rated as one of the hardiest varieties. Another hardy type is E. ‘Edinensis’. I greatly admire my neighbor’s escallonia. Put in many years ago, it has reached its full height of perhaps three feet, and its deep-rose flowers appear steadily from early summer to frost. I suspect it is a variety of E. rubra, although its identifying tags are long gone. I’ve asked my neighbor if I can take cuttings this month so I can start a few of this unnamed but beautiful escallonia for my own yard. Left largely unattended, it provides continuous bloom, hasn’t sent up one sucker, and holds its form with no pruning at all. I can’t say the same for my E. ‘Apple Blossom.’ Without annual shearing, it begins to look twiggy and sparse.”–wsu.edu

“Evergreen Escallonia can also make an attractive hedge; it isn’t dense, but makes a useful screen. It is best suited to southern areas, and seems happy by the coast.”–rspb.org.uk

Escallonia rosea

“…prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires dry or moist soil. The plant can tolerate maritime exposure.”–ibiblio.org

Escallonia ‘Peach Blossom’

“…shiny dark green leaves, and open cupped flowers. These are peach-pink with white at their centre, and borne in June on arching shoots. It reaches around 2.5m (8ft) in both height and spread and makes a dense shrub or hedge. It is most suitable for mild areas, especially by the coast.”–plantpress.com

Escallonia rubra

“Big shrub with dark, glossy green leaves and dark red flowers. Leaves have a resinous odor. Flowers attract hummingbirds. Grows 2 – 3’ a year to 8’+. The more widely planted Escallonia X ‘Frades’ (Pink princess shrub) is subject to iron deficiency if it gets watered regularly.”–redwoodbarn.com