Zone 10 Information
Zone 10 is steeped in heat and moisture from the surrounding seas. The edges of California and Florida are where Zone 10 is primarily found, as well as the northern tip of Kauai, Hawaii (known as the Flower Island). Zone 10 will nurture many plant varieties, even tropical plants. Though many types can thrive in this year-round warmth, it can be too hot for some plants, such as lilacs.
Zone 10 was divided in 1990 into two areas by the National Arboretum to provide gardeners with even more environmental detail: 10a and 10b
10a - Minimum temperature of 30 to 35 F (1.6 to -1.1 C) Places like Naples, Florida and Barstow, California.
10b - Minimum temperature of 35 to 40 F (4.4 to 1.7 C) Places like Miami, Florida and Coral Gables, Florida.
Here's a partial list of plants that thrive in Zone 10
Aloe Torchplant(Aloe arborescens)
Golden Barrel Cactus(Echinocactus grusonii)
Bird of Paradise(Strelitzia reginae)
Angelwing Jasmine(Jasminum nitidum)
Chinese Lantern(Physalis alkekengi)
Red Bougainvillea(Bougainvillea x 'Barbara Karst')
Eucalyptus Silver Dollar Gum(Eucalyptus polyanthemos)
Rubber plant(Ficus elastica)