Plant library · Fruit Trees
Citrus limon
Lemon is an evergreen fruit tree for warm gardens and large containers, bringing a lasting vertical presence rather than a short seasonal crop. At roughly 15 feet tall and 12 feet wide, it needs a dedicated sunny position where its canopy will not overtake smaller planting areas. Spring bloom may overlap with fruit, and the tree can remain visually active through much of the year.
Give a lemon tree an open, full-sun site in USDA Zones 9 through 11, preferably where it can stand apart from buildings, fences, and neighboring tree canopies. Keep the main canopy out of narrow side yards and away from doors, patios, and paths that need clear overhead circulation. In colder settings, use a movable container arrangement or reserve a protected growing space that can be kept frost-free through winter.[1][2]
Plant lemons 15 feet apart, center to center. A mature 12-foot spread leaves about 3 feet between neighboring canopies at that spacing, preserving a workable gap for light and access. For a single tree, draw its mature canopy as a 12-foot-wide circle, then keep the surrounding area open enough to reach the trunk, manage the ground beneath it, and move around the outer branches.
Use full sun and well-drained soil, avoiding low spots that hold water around the root zone. Moderate watering suits the tree’s planning profile, but irrigation should be easy to reach without routing hoses across paths or through densely planted beds. If it is placed beside a wall or fence, allow for the drier soil often created at the base of structures.[1][3]
Spring is the main bloom period, although flowers may appear at other times of year. Plan the tree as a permanent evergreen anchor rather than leaving its bed available for seasonal changeovers. Winter into early spring is the principal harvest window, so keep the route from the tree to the house or work area convenient during cooler, wetter weather.
Frost exposure is the main siting constraint. Flowers and young fruit can be damaged near freezing, while harder freezes can injure foliage and wood, so avoid cold pockets and exposed low ground. A sheltered position reduces weather stress, but do not crowd the tree against structures or other trees; shading and restricted canopy space can reduce normal growth and fruiting.[1]
Editorial content updated 2026-07-20.