Answer: Your garden is in USDA Zone 8, with minimum temperatures of
10 to 20?F. Zone 8 skirts near the western and southern borders of the United States, from the rainforests of Washington's coast to the coast of North Carolina. Winters here are relatively warm, growing seasons are long, and rhododendrons flourish. In the Northwest, you'll enjoy mild summers with some of the best American gardening climate; and in the Southwest you'll have the definite winters and hot, dry summers of the desert. Plants for zone 8 include Arbutus unedo (Strawberry tree), Choisya ternata (Mexican orange), Olearia haastii (New Zealand daisy-bush), Pittosporum tobira (Japanese pittosporum), Prunus laurocerasus (Cherry-laurel), and Viburnum tinus (Laurenstinus).
Hope this information helps you plan your garden!
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