Tree · Rutaceae
Meyer Lemon
Citrus × meyeri
Give it bright sun, even water, and shelter from frost, and this dwarf citrus sets fragrant white blooms and round, sweet fruit.
Full sun
Every 5–10 days
USDA 9–11
6–10 ft · 1.8–3 m
Overview
Up close, the Meyer lemon reads as a small, densely leaved evergreen, its glossy foliage carried on a compact frame. It is a hybrid citrus, most likely a lemon crossed with a mandarin or sweet orange, and the fruit tells that story plainly: rounder, sweeter, and thinner-skinned than a grocery lemon, its rind smooth and its flesh juicy and pale, with just enough tartness to bite. The whole tree stays small enough to sit in a pot, which is why it turns up far outside the warm zones where it can live outdoors.
Left to grow, it fills out into a compact evergreen reaching 6 to 10 feet (1.8 to 3 m) tall in the ground and staying much lower in a container. The fragrant white flowers open on and off through the year, heaviest in spring, small and pale against the dark leaves, and the round fruit ripens slowly, mostly from fall into winter. On a well-kept tree the pale blossoms and the deepening fruit hang side by side on the same branch.
For all that fine detail, the tree keeps clear demands. Give it strong light, steady moisture, and shelter from hard frost, and the leaves stay thick and glossy and the crop keeps coming. Miss on the cold or the watering, and the change is visible fast, as leaves loosen and fall or the blades pale to yellow between their green veins.
Care
The short version: full sun and a well-draining, slightly acidic mix, water once the top inch dries, feed monthly through the growing season with a citrus fertilizer, and keep the tree above 50°F by moving containers indoors before frost.
Light
Give the tree full sun, ideally eight hours a day or more, and the glossy canopy fills in with steady blooms and fruit. In partial sun or light shade it carries on, but the foliage thins and the crop drops off. Indoors, set it at the brightest window you have, or add a grow light.
Water
Let the top inch (about 3 cm) of mix dry, then water deeply until it runs from the drainage holes. Never let the rootball go bone-dry or stand in water, and water container trees more often through summer heat. That even moisture is what keeps the thick leaves and the round fruit clinging to the branch.
Soil
Root it in a well-draining, slightly acidic sandy loam or a good citrus or potting mix. A pH of 6.0 to 7.0 keeps the micronutrients within reach, which is what holds the leaf blades an even, deep green rather than a mottled yellow. Above all, sharp drainage is the detail to get right.
Temperature
The tree lives across roughly 23°F to 95°F (-5°C to 35°C), but the cold end is where the leaves suffer. With protection it holds near 20°F (-7°C), yet a hard frost scorches the foliage brown and can kill an unguarded tree, so bring containers above 50°F (10°C) before winter.
Humidity
Ordinary room air near 40% to 60% suits it. The dry heat of a winter room can stress an indoor tree and draw fine-webbing spider mites onto the leaf undersides, so a humidity tray or an occasional misting helps. Outdoors there is nothing to tend.
Feeding
Feed monthly from spring through late summer while the tree is in active growth, using a balanced citrus fertilizer that carries nitrogen along with iron, zinc, and manganese. Those micronutrients keep the blades evenly green and hold off the interveinal yellowing that shows when the tree runs short. Ease off through the dormant winter months.
Pruning
Prune lightly after the main harvest to shape the tree and open the leafy canopy to light and air. Cut out deadwood, crossing branches, and any suckers rising below the graft. It takes a firmer cut in stride, which makes holding a container tree to a tidy shape easy.
Repotting
Move the tree into fresh citrus or potting mix every 2 to 3 years, or sooner once it turns rootbound. Roots coiling around the pot, threading out the drainage holes, or water running straight through all mark the moment. Step up just one pot size so the mix never stays soggy around the roots.
Size & spacing
In the ground a Meyer lemon reaches about 6 to 10 feet (1.8 to 3 m) tall and 4 to 8 feet (122 to 244 cm) wide, a rounded, leafy crown that a pot keeps well under. Give an in-ground tree room for that full spread and for air to move around the dense canopy.
When to plant
Meyer lemon holds a place in the ground all year through the mild winters of zones 9 to 11. In colder places it lives in a container, comes outside after the last frost once nights stay above 50°F (10°C), and moves back in before the cold returns. The white flowers recur through the year with a spring peak, and the round fruit colors up across fall and winter.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Plant: After the last frost when night temperatures stay above 50°F (late spring); in zones below 9 grow in a container and overwinter indoors
- Harvest: Blooms intermittently year-round, heaviest in spring; fruit ripens mainly fall through winter
Hardiness
USDA hardiness zones: 9–11
Temperature: down to -7°C
Troubleshooting
Most of what troubles a Meyer lemon traces to cold, water, or feeding, and the leaves are where you see it first, in a paled blade or a loosened stem. Read those early marks on the foliage and you can act before the branches go bare. Match what you see below, then correct it while it still helps.
Leaf blades gone yellow between green veins
The picture is unmistakable: a leaf washed pale yellow while its network of veins holds a firm, deep green, the signature of interveinal chlorosis. Under that faded blade the tree has lost its grip on iron, zinc, or manganese, usually because the soil pH has climbed too high or the roots have sat in a sodden mix. A complete citrus fertilizer with chelated micronutrients, sharper drainage, and a pH eased back toward 6.0 to 7.0 bring the even green back to the blade.
Fix:
- Apply a complete citrus fertilizer with chelated micronutrients
- Improve drainage and reduce watering frequency
- Adjust soil pH toward 6.0 to 7.0
Glossy leaves let go in a single spell
When the glossy green leaves loosen and rain down all at once, the tree has taken a shock. Cold near or below 20°F (-7°C) is the usual blow, though a hard dry-out at the rootball, waterlogged roots, or a quick move between indoors and out will strip the branches just as bare. Set the tree in a sheltered spot above 50°F (10°C), hold the moisture even, and drape it in frost cloth before a cold snap reaches it.
Fix:
- Move the container to a sheltered spot above 50°F
- Maintain even soil moisture
- Protect with frost cloth during cold spells
White blossoms and green fruitlets falling
A ring of spent white flowers and pea-sized green fruitlets under the tree is nothing alarming, since a share of that drop is normal as the tree sheds more than its branches could ever ripen. A heavier fall reads differently and usually trails water or temperature stress, dry air, or a move during bloom. Hold the surroundings steady, keep watering and feeding to their rhythm, and leave the tree where it stands once the flowers open.
Fix:
- Maintain steady watering and feeding
- Avoid relocating the plant during bloom and fruit set
- Keep humidity moderate when grown indoors
Toxicity
The juicy pale flesh is good to eat, but the rest of the tree is not. The rind, the glossy leaves, and the seeds are steeped in essential oils and psoralens that irritate an animal's stomach and can leave skin sensitive to sunlight. Keep prunings, peels, and windfalls away from cats, dogs, horses, and grazing animals.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds
Safe for
People
Cats Mild
A cat that bites into the oily peel or a glossy leaf usually ends up with an upset stomach, with vomiting, loose stools, and a flat mood. The essential oils in that rind can also leave the skin sensitive to sunlight.
Dogs Mild
A dog that gnaws the leaves, the rind, or a dropped fruit tends to react with vomiting, diarrhea, and low energy. Most cases stay mild, though the oils may irritate the skin.
Horses Mild
The same oils and psoralens in peel and foliage upset a horse's gut, dulling the appetite and loosening the droppings. Keep prunings and windfalls out of the paddock.
Rabbits Caution
The oil-laden peel and leaves are no safe nibble for a rabbit. One that gets into them may go off its food or pass soft stools.
Livestock Caution
Goats, sheep, and cattle can take a stomach upset from the oily rind and foliage if they browse the tree or its trimmings. Fence them out and clear fallen prunings.
Birds Caution
The concentrated oils in the peel and leaves can irritate a bird, so both are best kept off the menu. A small taste of the plain flesh is the safer option.
People Flesh safe
The juicy, pale flesh is a kitchen favorite and good to eat. Handling a lot of peel or leaves can leave skin sensitive to sun, so wash up after pruning.
Keep prunings, peels, leaves, and seeds away from pets; the fleshy fruit is generally only a mild stomach irritant in small amounts.
Helpline numbers
United States
ASPCA Animal Poison Control: (888) 426-4435 (fee applies)
Poison Control: (800) 222-1222
Canada
Poison Centres: 1-844-764-7669
Varieties
Only two clones are worth telling apart, and what divides them is a virus rather than anything you would see on the leaf.
Improved Meyer
This virus-free, tristeza-tested selection from the 1970s became the standard nursery clone after the original trees were destroyed as symptomless carriers of the disease.
Original (True) Meyer
The pre-1970s clone was pulled from cultivation because it carried citrus tristeza virus without ever showing a visible sign of it.
How to propagate
Meyer lemon is one of the more willing citrus to multiply at home, and the method you choose sets how soon that first round fruit appears.
Stem cuttingsModerate
Late spring to summer from semi-hardwood growth · 6 to 12 weeks to root; 2 to 3 years to first fruit
Meyer lemon roots from cuttings far more willingly than most citrus, so it often grows on its own roots. Take firm semi-hardwood pieces in late spring or summer, expect them to root in 6 to 12 weeks, and look for the first fruit another 2 to 3 years out.
GraftingDemanding
Spring or late summer (T-budding) · A few weeks to take; 1 to 2 years to a field-ready tree
Budding a Meyer bud onto a disease-tolerant rootstock builds a more vigorous, more resistant tree. Slip the T-bud in during spring or late summer; it knits in a few weeks, and a field-ready tree follows in 1 to 2 years.
SeedModerate
Sow fresh seed in warmth · Several years to fruit
Fresh seed sown in warmth will sprout, but the seedlings creep along and are not reliably true to type, taking several years to fruit. It is a fun experiment rather than the way to raise real Meyer lemons.
Myths
A Meyer lemon is a true lemon.
It is a hybrid, most likely a lemon crossed with a mandarin or sweet orange. That parentage shapes a fruit that is sweeter, less sharp, and thin-skinned, and a tree that stays more compact and shrugs off cold better than a true lemon.
You can grow a true Meyer lemon from a saved seed.
Seedlings rise slowly and will not reliably match the parent tree. A named Meyer lemon is grown from cuttings or grafting, the only way to keep the fruit true to type.