Tree · Rutaceae
Meyer Lemon
Citrus × meyeri
Offer it bright sun, even water, and a little shelter from frost, and this forgiving dwarf citrus thanks you with fragrant blooms and sweet fruit.
Full sun
Every 5–10 days
USDA 9–11
6–10 ft · 1.8–3 m
Overview
Take a breath, because the Meyer lemon is a friendlier tree than its reputation suggests. It is a hybrid citrus, most likely a lemon crossed with a mandarin or sweet orange, and that mix shows up in fruit that is rounder, sweeter, and thinner-skinned than a grocery lemon, with just enough tartness to lift a dish. Best of all, it stays small enough to grow in a pot, which is exactly why so many gardeners well outside the warm zones can still enjoy it.
Given room, it settles into a compact evergreen tree, reaching 6 to 10 feet (1.8 to 3 m) tall in the ground and staying much smaller in a container. The fragrant white flowers arrive on and off through the year, heaviest in spring, and the fruit ripens at its own pace, mostly from fall into winter. Do not be surprised to find one happy tree carrying blossoms and fruit at the very same time.
It does have clear likes and dislikes, but none of them are hard to meet. Give it strong light, steady moisture, and shelter from hard frost, and it stays glossy and productive for you. And if the cold or the watering slips, the tree tells you kindly and early, dropping a few leaves or yellowing between the veins, which gives you plenty of time to put things right.
Care
The short version: give it 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 bringing containers indoors before frost.
Light
Give the tree full sun, ideally eight hours a day or more, and it will thank you with steady blooms and fruit. It will manage in partial sun or light shade, though the canopy thins and the crop shrinks a little. Indoors, park it at the brightest window you have, or add a grow light and it settles right in.
Water
Let the top inch (about 3 cm) of mix dry, then water deeply until it flows from the drainage holes. Never leave the rootball bone-dry or standing in water, and pour a little more often for container trees through summer heat. That steady, even moisture is what keeps the leaves and fruit right where you want them.
Soil
Plant it in a well-draining, slightly acidic sandy loam or a good citrus or potting mix, and you are off to a solid start. A pH of 6.0 to 7.0 keeps the micronutrients within reach, which is what heads off the yellow leaves citrus can get. More than anything else, sharp drainage is the thing to get right.
Temperature
The tree copes with a wide range of about 23°F to 95°F (-5°C to 35°C), but it is the cold end that asks for your attention. With protection it survives down to roughly 20°F (-7°C), yet a hard frost burns the leaves and can take an unguarded tree, so bring containers above 50°F (10°C) before winter and breathe easy.
Humidity
Ordinary household air suits it just fine, somewhere around 40% to 60%. The dry heat of a winter room can stress an indoor tree and tempt in spider mites, so a humidity tray or the occasional misting is a kind touch. Outdoors, there is nothing here for you to fuss over.
Feeding
Feed it monthly from spring through late summer while it is in active growth, using a balanced citrus fertilizer carrying nitrogen along with iron, zinc, and manganese. Those micronutrients quietly prevent the interveinal yellowing citrus shows when it runs short. Then ease right off through the quiet winter months.
Pruning
Prune lightly after the main harvest to shape the tree and open the canopy to light and air. Take out deadwood, crossing branches, and any suckers popping up below the graft, and you cannot go far wrong. It takes a firmer cut in stride too, which makes keeping a container tree compact refreshingly easy.
Repotting
Move the tree into fresh citrus or potting mix every 2 to 3 years, or a touch sooner once it grows rootbound. Roots circling the pot, poking through the drainage holes, or water racing straight through all gently signal it is time. Step up just one pot size so the fresh mix never turns soggy.
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, while a pot keeps it comfortably smaller. Give an in-ground tree room for that full spread and space for air to move around the canopy, and it will settle in nicely.
When to plant
Meyer lemon is at its most content in the mild winters of zones 9 to 11, where it can happily stay in the ground all year. Anywhere colder, don't worry, just grow it in a container, set it outside after the last frost once nights hold above 50°F (10°C), and welcome it back in before the cold returns. The tree blooms on and off all year but leans hardest into spring, with fruit ripening through 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 Meyer lemon hiccups come down to cold, water, or feeding, and the leaves are usually the first to speak up. Learn to read those early signs and you can steer things back on course long before the tree sheds its canopy. Find what you see below, then act while a small fix still does the job.
Pale leaves while the veins stay green
If the leaves fade but the veins keep their green, take heart, because this is a common and fixable sign called interveinal chlorosis. It means the tree can't reach the iron, zinc, or manganese it needs, usually because the soil pH has crept up or the roots have stayed too wet. Feed a complete citrus fertilizer with chelated micronutrients, ease up on the water, and gently bring the pH back toward 6.0 to 7.0.
Fix:
- Apply a complete citrus fertilizer with chelated micronutrients
- Improve drainage and reduce watering frequency
- Adjust soil pH toward 6.0 to 7.0
A rush of leaves falling together
When a Meyer lemon drops a lot of leaves at once, it has almost always taken a fright of some kind. Cold near or below 20°F (-7°C) is the usual reason, though a hard dry-out, soggy roots, or a sudden move from inside to out can all do the same. Settle the tree in a sheltered place above 50°F (10°C), keep the moisture even, and tuck it under frost cloth when cold weather is on its way.
Fix:
- Move the container to a sheltered spot above 50°F
- Maintain even soil moisture
- Protect with frost cloth during cold spells
Blossoms and baby fruit letting go
Try not to worry when some flowers and tiny fruit fall, because a little drop is completely normal and simply the tree thinning a crop it could never ripen all at once. Heavier loss is worth a second look and usually follows water or heat stress, dry air, or being moved while in bloom. Keep the conditions calm and steady, stay on your watering and feeding routine, and leave the tree in place 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 flesh is good to eat, but the rest of the tree is best left alone. The peel, leaves, and seeds hold essential oils and psoralens that upset an animal's stomach and can leave skin sensitive to sunlight. To keep everyone comfortable, tuck 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 nibbles the peel or leaves will most likely end up with a queasy stomach, some vomiting, loose stools, and a subdued mood. Take care with the oils too, since they can leave the skin touchy in sunlight.
Dogs Mild
After chewing leaves, peel, or a dropped fruit, a dog usually shows vomiting, diarrhea, and a dip in energy. The good news is that most cases stay mild, though the oils may bother the skin.
Horses Mild
Those same oils and psoralens can unsettle a horse's gut, dulling the appetite and loosening the droppings. It helps to keep prunings and windfalls well out of the paddock.
Rabbits Caution
The peel and leaves carry the irritating oils, so they simply aren't a safe nibble for a rabbit. One that gets into them may go quiet about food or pass soft stools.
Livestock Caution
Goats, sheep, and cattle can pick up a stomach upset from the oily peel and foliage if they browse a tree or its trimmings. A little fencing and a quick clear-up of fallen prunings keeps everyone comfortable.
Birds Caution
Because the oils in peel and leaves are concentrated, they can bother a bird, so it is kindest to keep them off the menu. A small taste of the plain flesh is the gentler choice.
People Flesh safe
The juicy flesh is lovely to eat and a real kitchen treat. Working with a lot of peel or leaves can make skin sensitive to sun, so a quick wash after pruning sets you right.
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
There are really only two clones worth knowing, and the tale behind them is, at heart, the tale of a virus.
Improved Meyer
You will almost always meet this virus-free, tristeza-tested selection from the 1970s, which stepped in as the trusted nursery clone once the original trees had to be removed as symptomless carriers of the disease.
Original (True) Meyer
This pre-1970s clone had to leave cultivation because it quietly carried citrus tristeza virus without ever showing a single sign of it.
How to propagate
Good news for a first try: Meyer lemon is one of the easier citrus trees to multiply at home, and the method you choose simply decides how soon you pick fruit.
Stem cuttingsModerate
Late spring to summer from semi-hardwood growth · 6 to 12 weeks to root; 2 to 3 years to first fruit
Here is some encouragement: Meyer lemon roots from cuttings far more readily than most citrus, so it often grows happily on its own roots. Take semi-hardwood pieces in late spring or summer, expect roots in 6 to 12 weeks, and look forward to the first fruit another 2 to 3 years on.
GraftingDemanding
Spring or late summer (T-budding) · A few weeks to take; 1 to 2 years to a field-ready tree
Budding or grafting onto a disease-tolerant rootstock rewards you with a more vigorous, more resistant tree. Try the T-budding in spring or late summer; the bud knits within a few weeks, and a field-ready tree follows in 1 to 2 years.
SeedModerate
Sow fresh seed in warmth · Several years to fruit
Sowing fresh seed in warmth does work, but be patient, since the seedlings grow slowly and are not reliably true to type, taking several years to fruit. Think of it as a fun little experiment rather than the way to raise real Meyer lemons.
Myths
A Meyer lemon is a true lemon.
It is really a hybrid, most likely a lemon crossed with a mandarin or sweet orange. That gentle parentage is the happy reason the fruit turns out sweeter, less sharp, and thin-skinned, and why the tree stays more compact and takes cold in stride better than a true lemon.
You can grow a true Meyer lemon from a saved seed.
Seedlings are slow to get going and won't dependably resemble the parent tree. A named Meyer lemon comes from cuttings or grafting, and that is the one reliable way to keep the fruit true to type.