How Big Does a Dwarf Lemon Tree Grow?
A dwarf lemon tree in a nursery pot can stay patio-sized for years or climb past 10 feet. Dwarf lemon tree height depends on the rootstock the tree is grafted onto, the soil, and the container, and lemon trees planted in the ground behave differently from the same trees in pots.
Dwarf vs. Standard Lemon Tree Size
Standard lemon trees reach 10 to 20 feet in height, and lemon trees in a yard need 15 to 25 feet or more of room from buildings and other trees. Pruning can hold a standard tree at 7 to 10 feet high and 10 to 15 feet wide.
A dwarf citrus tree is a standard variety grafted onto a dwarfing rootstock such as Flying Dragon, and dwarf is defined by convention as about 5 to 6 feet tall at maturity. Actual height varies, because Flying Dragon rootstock produces trees of varying size, and lemons on it reached 11.5 feet at 12 years in one study. Soil matters too: trees on that rootstock tend to stay smaller in deep sand and can reach standard size on better soils.
A pot limits size as well. A Meyer lemon in a container grows 3 to 4 feet tall, and patio containers can keep dwarf lemon trees compact with regular pruning. A tree that is small only because of its pot, though, can grow to standard size once it goes into the ground.
Growing Dwarf Lemon Trees Indoors
A Meyer lemon tree can live indoors as a houseplant, though it is unlikely to fruit when kept inside. Start in a 5-gallon pot and move up to 15 and then 25 gallons as the tree grows. Larger containers support better root development, but the pot has to stay movable if the tree goes outside each summer.
Set the container in a sunny location near a south-facing window, keep nighttime temperatures near 65°F, and keep the tree away from heating vents and blasts of hot air. Dry indoor air hurts citrus, so add humidity with a pebble tray or occasional misting. Large temperature swings and too much or too little water cause leaf, flower, and fruit drop.
Meyer lemons are self-fertile, but they still need air movement or insects to distribute pollen. Indoors, brushing each flower lightly with a small paintbrush moves pollen by hand, and fruit set may drop if the tree stays inside too long.
Prune the tree lightly by removing dead or diseased branches and any foliage that blocks air circulation. Watch for pests or diseases: scale, aphids, and spider mites are the usual pests, and washing the foliage before the tree comes inside helps prevent them.
Bring the container inside before a frost, since lemon flowers and young fruit are killed at 29°F and Meyer lemons need frost protection below 20°F.
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Sunlight Requirements
Outdoors, lemon trees need full sun for the best growth and fruit production. Indoors, a south-facing window that gives the tree six to eight hours of sun is the target for sun exposure. Low winter light may call for supplemental lighting, and a grow light fills the gap when a sunny window falls short.
Move a tree outdoors gradually: take it outside during the day for several days, bring it in at night, and keep it in shade for the first week. Once acclimated, citrus need full sun to bloom and fruit.
Time to Bear Fruit
Young lemon trees usually begin fruit production in the third year, and the time from flowering to harvest ranges from 4 to 12 months depending on the variety, crop load, temperature, and cultural practices. Fruit production may occur year round, with the major harvest in summer, autumn, or winter depending on the variety, and Meyer lemons bear fruit mostly during fall and winter.
Plant in late winter or early spring, and apply a balanced fertilizer such as 6-6-6-2 when new growth begins, repeating every 3 to 4 months in the first year. Too much fertilizer produces leafy growth at the expense of fruit. Container trees get fertilizer in summer, following the label, with less in winter.
Fruit Quality and Edibility
Meyer lemons are thought to be a cross between a lemon and an orange or mandarin. The fruit is sweeter than common lemons and turns a rich orange-yellow, and cooks and bakers prize its sweet-tart flavor. True lemons have juicy, acid pulp, and lemon fruit goes into juice and desserts, with the peel candied or used in cooking.
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Frequently Asked Questions
How Big Does a Lemon Tree Get?
Standard lemon trees reach 10 to 20 feet, and pruning can hold them at 7 to 10 feet high and 10 to 15 feet wide.
How Big Do Lemon Trees Get in a Container?
A Meyer lemon in a container grows 3 to 4 feet tall, and the same tree planted in the ground can grow larger.
How Tall Is a Dwarf Lemon Tree?
Dwarf citrus is defined by convention as 5 to 6 feet tall at maturity, though rootstock, soil, and variety shift that height.
Can a Dwarf Lemon Tree Live Indoors?
A Meyer lemon can live indoors as a houseplant, but it is unlikely to fruit there. It needs six to eight hours of sun, and a grow light can supplement a winter window.
How Long Does a Dwarf Lemon Tree Take to Bear Fruit?
Young lemon trees usually begin fruiting in the third year, and the time from flowering to harvest runs 4 to 12 months.
References
University of Florida IFAS Extension, "Lemon Growing in the Florida Home Landscape"
https://ask.ifas.ufl.edu/publication/HS402
University of Florida IFAS Extension, "Dwarfing and Freeze Hardiness Potential of Trifoliate Orange Rootstocks"
https://journals.flvc.org/edis/article/view/113279
UF/IFAS Gardening Solutions, "Meyer Lemon"
https://gardeningsolutions.ifas.ufl.edu/plants/edibles/fruits/meyer-lemon/
UF/IFAS Gardening Solutions, "Dwarf Fruit Trees"
https://gardeningsolutions.ifas.ufl.edu/plants/edibles/fruits/dwarf-fruit-trees/
Oregon State University Extension, "How to grow Meyer lemons successfully in the Pacific Northwest"
https://extension.oregonstate.edu/news/how-grow-meyer-lemons-successfully-pacific-northwest
