The Eureka lemon tree has surpassed all in growth. Infestations may require spraying by a professional arborist. Citrus thrips and citrus mites are the most common pests to attack Arizona citrus trees. If you are searching “Phoenix Valley Citrus Tree Easy Care Guide”, you are looking for a guide that will help you understand how to care for your citrus trees in the heat of the Phoenix Valley. You can find information pertaining to your area on the citrus tree’s nursery tag. Citrus is one of the state’s iconic 5 Cs: Citrus, Cotton, Climate, Cattle and Copper. Care For A Citrus Tree In Arizona. The sun and soil are perfect for growing oranges, tangerines, lemons and grapefruit. Keep in mind that citrus trees do not produce fruit until they are 2-4 years old. Growing citrus trees in the desert environments that are common in Phoenix, Mesa, Gilbert, Queen Creek, and other Phoenix Valley cities is different than other areas of the state and country. A lemon tree can thrive if it is potted. Our yard is home to two orange trees a Navel and an Arizona Orange, a Rio Red Grapefruit and a Eureka lemon tree. Arizona’s citrus industry predates statehood by decades. Your citrus trees will grow best if you choose a rootstock that is preferred for planting in Arizona. This makes them great indoor plants too. Growing a Lemon Tree Indoors In Arizona. Citrus trees require the warm sun and well-drained soils of USDA hardiness zones 9 through 11, where the temperatures do not fall below 20 degrees F. If you are an Arizona gardener, your state resides within hardiness zones 5 through 10a.