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Printer Friendly Version. Understanding the USDA planting zones you live in can mean the difference between success and failure in your garden. Planting plants, vegetables and flowers that are appropriate for your US growing zone will make sure that your garden is happy and healthy year after year.
Zone 9 Planting Time. The best time to plant a Meyer lemon in USDA zone 9 is in the late winter or early spring. That gives a tree time to establish itself in the warm growing season.