site in coastal southern California , about equidistant from downtown San Diego to the south and Anaheim to the north , Oceanside is defined on the USDA Plant Hardiness Zone map as Zone 10 . The climate is soft , though temperatures may reach a minimum of 30 degrees F overnight in winter . Oceanside , and all of southern California , is an first-class property for out-of-door horticulture , as works may relish loads of sunlight , low humidity and few insects . Drought may be a problem but can be puzzle out by extra irrigation .

Birds of Paradise

Birds of Paradise ( Strelitzia reginae ) which may also be known as the crane flower , is an evergreen plant repeated with arresting flowers in orange , down in the mouth and blanched that resemble tropic birds . Native to South Africa , these plant life are trunkless and have pissed stems with bloom or oblong leaves that resemble those on banana trees . raspberry of Paradise peak nearly year - round in Oceanside , which has a moderate climate . These plants boom in full Sunday to partial shade and require regular water .

Citrus Trees

As a whole , citrus tree are tropical evergreen plant trees and shrub that spring up all over southern California , include Oceanside , where lemons , limes , grapefruit and orangish variety show may be farmed or used in a home landscape . gamboge and calcined lime are particularly plentiful in this area , which has nerveless nights twelvemonth - circular . orange and grapefruit expect moderate to high warmth to shape sugars , though some varieties of oranges , including mandarins , will ripen with less high temperature . Citrus trees thrive in full sunlight with moist land , though it is important not to let the roots become too dry or flooded .

Rose Bushes

Rose crotch hair ( Rosa ) are among the most popular plant in the human beings , and many varieties boom in Oceanside due to the mild mood . These evergreen bush are uncommitted in many sizes , ranging from the nigh disease - resistant intercrossed Camellia sinensis , which can arise to 6 infantry , to the miniature pink wine , which can grow to 1 - 1/2 feet and produces tiny blooms . rose are susceptible to mildew , rust fungus or black spot in dazed areas , so if planting within five miles of the Pacific coastline , select a disease - resistive miscellany such as red Chrysler Imperial , orangish Tropicana or scandalmongering Graceland , all of which are hybrid tea roses . In Oceanside , plant life roses in full Dominicus , water regularly and prune back every year in January .

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