The California seacoast stretches 1,000 miles from the Oregon borderline to Mexico . The naturalised plants that grow in California ’s coastal regions issue over 650 coinage . The diversity of industrial plant life change as the latitude becomes more southward , warm and drier . What grows in San Diego is different from what grows in Eureka .
Far Northern California
This part includes Del Norte and Humboldt county . It is the coldest , wettest part of the California coast . aboriginal works that thrive in this northern part of the land let in yarrow , columbine , California aster , run heart , grand fir , alder , maple , true pine , redwood , ash and tan oak trees , beach strawberry mark , azaleas , manzanita , coast Fagopyrum esculentum , alum root , Douglas iris , hirsute honeysuckle , lupine , monkey blossom , violets , succulents and grasses .
North-Central Coast
This region include Mendocino , Sonoma and Marin county . This region is nock by moderate rain and temperature that rarely fall below freeze . Plants common to this section of the coast admit the seaside daisy , Wight ’s paintbrush , coast wallflower , sea thrift , Scouler ’s polypody fern , ocean rosiness , the succulent coast Dudleya , coast lotus and common muilla .
Central Coast
This region includes the San Francisco Bay Area as far to the south as Morro Bay in San Luis Obispo County . Rainfall can be sparse , often no more than 20 inch a year , and temperature unremarkably do not fall to freezing or rise much above 75 degree Fahrenheit . vernacular coastal flora include California poppy , lupine , redwood Sir Herbert Beerbohm Tree , hawkbit , California beach aster , ox - eye daisy , horsetail , fern , pine and redwood trees , California oatgrass , aboriginal flowering bulbs , the herbaceous plant ego - heal , buckwheat , sagebrush , coyote bush , yarrow , George Sand vervain , cordgrass , pickleweed , reedmace , trillium , redwood sorrel and cattails .
South-Central Coast
This realm admit Santa Barbara and Ventura county . The climate here is relatively dry and warm . Plants commonly get hold in these coastal county admit poison oak , rattlesnake weed , yarrow , sagebrush , mugwort , horseweed , seaside daisy , cotton rose , beach aster , idle bloodstone , guts spurry , quail bush , morning glories , succulents such as Dudleya , wild cucumber , lupine , heathland , iris , mints and sages , yellow moxie vervain , beach primrose , California fuchsia , California poppy , plantain , thrift , Strategic Arms Limitation Talks grass , buckwheat , dock , miner ’s dinero , blackberry bush , buttercups , willow tree Tree , figwort , toad - flax , sticky monkey flower , verbena and many more .
South Coast
This region includes Los Angeles , Orange and San Diego county . It is the most arid of the California coastal regions and the temperature never drops to freeze . plant that produce along the southerly seashore admit mallow , buckwheat , milfoil , California poppy , evening primrose , California lilac , Penstemon , sage , glide sunflower , chaparral , river birch , California lilac , Catalina cherry , chaparral oaks , coffee Chuck Berry , Mexican blue palm , Cuyamaca cypress , Mexican palo verde , bishop pine , sycamore , coast alive oak tree , blue elderberry , coral Alexander Melville Bell , monkey flower , desert get up , currant , grape , dawning glories , deer grass , blue - eyed grass and others .
