California Citrus Trees

Nothing compares to a freshly picked orange from a California citrus tree.

Citrus trees in California have the ability to grow in a range of soils, although sandy soils require more water and fertilization than soils with higher clay contents. Adding manure and compost to the soil will increase its ability to retain nutrients and water. Like any tree, California citrus trees need proper care and a dedicated grower to truly flourish.

History

The first citrus seed in California was planted in 1769 by Father Junipero Serra according to Californiacountry.org. Since then, California has become home to a wide range of citrus trees including orange, mandarin, kumquat, grapefruit, lime, lemon and more.

No Frost

Citrus trees in California need to be protected from frost, or they could die. Wind machines are used in California to prevent excessive frost and colder temperatures from damaging the tree. These wind machines mix the warmer air above the ground with the colder air below, creating warmer air around the citrus tree.

Diseases

California citrus trees have become threatened by the Asian Citrus Psyllid, an insect which carries a disease known as HLB or Citrus Greening Disease. Citrus trees in California that are infected by this disease will produce inedible, bitter and misshapen fruit. While this disease isn't harmful to humans, it is deadly to California citrus trees. There is no known cure as of 2011.

References

• California Citrus Threat: The Disease Huanglongbing
• Sunkist: Citrus 101
• California Country: The History Of Citrus In California
• Four Winds Growers: Our Citrus Trees

Resources

• Aggie Horticulture: Home Fruit Production Citrus