Orange trees grow in U.S. Department of Agriculture plant hardiness zones 9 through 11 and can be planted any time of the year including the summer, with special care and handling. Following a few tips helps the tree survive the stress of transplanting in warmer weather.Click to see full answer. Simply so, what is the best time to plant citrus trees?Do not plant citrus in a lawn or with plants that require frequent irrigation. Space standard trees at least 12 feet apart, and dwarf trees 8 to 10 feet apart. The best time to plant citrus is early spring after the danger of frost has passed and when nurseries stock the best selection.Beside above, how close can you plant citrus trees? Standard-size citrus trees should be spaced 12 to 25 feet apart and dwarf citrus trees should be set 6 to 10 feet apart. The exact distance depends on the variety. The bigger the fruit, the farther the distance. If the soil is not well-drained, plant the trees on a slight mound to prevent waterlogging. Likewise, people ask, can you plant citrus trees together? Citrus trees planted close together eventually form an overhead canopy that is completely intertwined, with fruits and foliage along each canopy’s original edges subjected to constant shade within this floating hedge. The trees may even cease to produce fruit if the canopy continues to grow denser.What grows well around citrus trees?Yarrow, dill, and fennel all attract lacewings and ladybugs, which feed on aphids. Lemon balm, parsley, and tansy attract tachinid fly and wasps, which kill harmful caterpillars. Another good set of citrus tree companions are legumes, such as peas and alfalfa.