native 6" evergreen shrub
Here are three suggestions for native evergreen shrubs:
Dwarf Oregon Grape - Berberis nervosa - Dwarf Oregon grape is another native shrub that has evergreen leaflets, nine to 19, on a full leaf stem spreading in handsome starbursts from stiff branches. In early spring, it produces sweet-smelling, bright yellow flowers. The dwarf Oregon grape is found in a similar niche in nature to sword fern. It spreads to a mass of plants in the lower layer of a woodland landscape about 3 feet tall, and like sword fern, the dwarf Oregon grape will tolerate sun and summer drought once established. The leaves retain their spring hues of purplish red when planted in sunny sites and in a shady planting will keep a deep mat green growth requiring some summer water.
Snowbrush - Ceanothus velutinus - A fragrant froth of tiny, white flowers covers snowbrush’s shiny, evergreen leaves in summer, giving rise to its common name. The Many bipinnately compound leaflets form the leaves arranged in a starburst whorl on dwarf Oregon grape 17 leathery, 2- to 4- inch leaves have three prominent veins and are often sticky on top and leather-colored and velvety below. Snowbrush requires a sunny location and can adapt to very dry or moist situations. A many-branched, frequently thicket-forming plant growing 5 to 9 feet tall, snowbrush would make an effective screen, where it would be attractive to the California tortoiseshell and pale swallowtail butterflies. Snowbrush is a pioneer species, germinating after fires when competing shade plants have been removed. Like other ceanothus species, snowbrush fixes nitrogen, giving it an early advantage over other plants and enriching the soil for future plant communities.
Oregon Boxwood - Paxistima myrsinites - Oregon boxwood is a small, dense, evergreen that grows relatively slowly to about 3 feet in height. Its lustrous, leathery, inch-long leaves are sharply toothed and lightly rolled under at the edges. Tiny, four-petal, ruby flowers bloom at the base of its leaves in late spring. This tidy evergreen will be a welcome addition as a low border, an edging plant, or a fine-scaled evergreen accent in moderately dense to open shade. Oregon boxwood responds well to pruning, should one desire a native topiary in the garden!
It's a start! Good luck!