With its temperate Mediterranean clime , many part of the San Francisco Bay Area are adept growing locations for orange trees and other citrus . Although you might need to protect your tree from winter frost , orange tree are broadly hardy in U.S. Department of Agriculture mood geographical zone 8 and higher . The Bay Area is cognize for its summer fog , which can bestow to powdery mould on orange trees , so select a resistant motley .

Washington Naval Oranges

Formerly promise the Bahia orange because of its discovery in Bahia , Brazil in the former 1800s , the Washington naval orange is commonly grown in Bay Area gardens . It ’s a large , mostly seedless orange with a slurred cutis that makes it promiscuous to peel . The Washington naval prefers a slightly cool clime , which characterise most weather in the Bay Area , specially with the night and early morning summertime fog . Washington naval Orange River mature just in time for include them in Christmas stockings as a healthy snack .

Valencia Oranges

Valencias are the best oranges for juice . Although the fruit have ejaculate , this orange is favored for its sweet flavor . It prefers a warm clime , so inland country of the Bay Area are the most conducive surroundings for growing a Valencia . This orange produce yield that is small than the Washington naval orange , but its superior juice makes this thin - skinned orange a popular choice . The Bay Area often has clay grunge , which is not the upright for citrus trees . If you decide to plant a Valencia or other Orange River tree , add plenty of organic topic to your filth or believe growing your tree in a large container to give it good drainage . The Valencia ripen from late spring through fall in the Bay Area , make it a good long - time of year yield .

Blood Oranges

You will find lineage oranges growing in the Mediterranean region , which gives a honest clue that they are compatible with the Bay Area ’s climate . The blood line orange ’s soma is a crimson color , making it unusual and very tasty . The pigments that do the violent color necessitate cold weather condition for develop , fit in to Texas A&M University , making this orange a good selection for growing in low acme in the Bay Area . Depending on your exact location , you may or may not achieve the ruby coloration . Several varieties of the blood orange exist : Egyptian , Maltese , St. Michael and Ruby are sometimes found at Bay Area nurseries as bare root plants .

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