Evergreen foliage all year round and lemons that mature slowly on the branch: the potted lemon tree (Citrus limon) makes home-grown citrus possible where the climate rules out planting directly in the ground. Give it a well-lit, unheated spot where the temperature never drops below 32°F (0°C), and you can pick your own fruit.
| Name | Citrus limon |
|---|---|
| Height | 3 to 10 feet (1 to 3 m) |
| Exposure | full sun |
| Soil | well-drained |
| Foliage | evergreen |
| Flowering | spring/summer |
| Harvest | fall/winter |
The climate in most of our regions isn’t well suited to growing lemon trees directly in the ground, but growing them in pots is perfectly possible.
The best varieties for growing lemon in pots are dwarf ones like the ‘Lisbon’. Special dwarf versions of the ‘Meyer’ and ‘Ponderosa’ lemons exist, too.
Evergreen foliage all year, and lemons that mature slowly on the branch: the potted lemon tree (Citrus limon) makes citrus possible where the climate rules out planting directly in the ground. Give it a well-lit, unheated spot where the temperature never drops below 32°F (0°C), and you can pick your own fruit.
| Task | When | Key point |
|---|---|---|
| Re-potting | Every 2 or 3 years, in spring | High-quality citrus soil mix, neutral to acidic (pH 5.5 to 7), with a drainage hole and a bed of pebbles |
| Pruning | Very regularly, possibly several times a year | Shorten each new shoot back to about half its length, cutting just above a leaf |
| Feeding | Every two weeks during the growth phase | Citrus-specific fertiliser, applied while watering, to boost fruit-bearing |
| Winter shelter | mid-autumn to late spring | A well-lit, unheated spot where the temperature never drops below 32°F (0°C) |
| Harvesting | Usually late autumn to early spring | Protect from freezing and keep the soil slightly moist while fruits mature |
Watering sits outside this calendar: it simply follows the soil, frequent in summer and reduced in winter.
Not every lemon suits life in a container: some stay naturally compact, others need hard pruning to stay in bounds. The table below compares the varieties most often sold in garden centres and mainstream catalogues.
| Variety | Fruit | Cold tolerance | Best for |
|---|---|---|---|
| ‘Variegated Pink Eureka’ | Striped skin, pink flesh | Low | Ornamental terrace plant |
| ‘Lisbon’ | Very acidic, juicy | Good for a true lemon | Reliable crops, needs pruning |
| ‘Eureka’ | Very tart, classic lemon | Low | Juice and zest, few thorns |
| ‘Villa Franca’ | Tart, smooth-skinned | Moderate | Dense leafy shape, few thorns |
Potted lemon trees cannot extract the nutrients they need from the ground.
So the pot and soil you have put in it are their only source of food for them to stock up and grow. Re-potting is critical.
For larger pots, repotting becomes difficult. In this case, increase nutrient availability by topdressing the top of the pot with rich, fresh soil mix.
Pruning isn’t really needed but if you don’t prune your lemon tree, it will quickly grow very large.
In pots, it is best to control your tree’s growth with very regular pruning.
Shorten each new shoot back to more or less half its length, taking great care to cut just above a leaf.
This will result in your lemon tree keeping a nice, tight shape.
Remove dead wood regularly and clear the inside branches of your lemon tree to let light penetrate to the center.
→ Important: many lemon trees are grafted. If you see suckers or shoots growing from below or at the graft point, prune them off immediately.
In pots, lemon trees dry up much faster than if they were planted in the ground.
In summer, frequent watering is required, whereas watering can be reduced in winter.
Every two weeks, during the growth phase, add citrus-specific fertilizer to boost fruit-bearing. You can do this while watering your lemon tree.
Growing these trees in pots is most adapted, because it makes it possible to bring the lemon trees to a well-lit spot where it doesn’t freeze in the winter.
Lemon trees aren’t indoor plants, and can’t bear staying in a heated environment all year round. They need relatively lower temperatures from mid-autumn to late spring.
It is important to place them in an unheated greenhouse for instance, where the temperature never drops below 32°F (0°C).
Harvest season is usually late autumn to early spring.
In the northern hemisphere, lemon fruits start forming in spring and slowly mature over the winter.
If ever you have to absolutely bring your lemon tree indoors to keep it from freezing, do your best to keep the air moist.
Learn more about citrus plants:
Pick the lemons as soon as they easily break off from their branch.
This shows that the fruit has matured enough for the seeds and flesh to be fully developed, without yet being over-ripe.
In summer, frequent watering is required, while watering can be reduced in winter. Water as soon as the soil is dry without flooding the pot, and avoid placing the tree near heat sources like radiators that could dry it out faster.
The article does not specify how long it takes for a potted lemon tree to reach maturity or produce its first harvest. It only notes that in the northern hemisphere, fruits start forming in spring and mature slowly over winter, with harvest season typically late autumn to early spring.
Pruning should be done very regularly, potentially several times a year, by shortening each new shoot back to about half its length just above a leaf. Also remove dead wood regularly and clear inside branches to allow light penetration, and immediately prune off any suckers or shoots growing from below or at the graft point.
Potted lemon trees cannot survive freezing outdoors and must be brought to a well-lit, unheated location where the temperature never drops below 32°F (0°C), such as an unheated greenhouse. They are not suitable as indoor plants and cannot tolerate heated environments year-round.
Common diseases include European brown rot (lemons rot on the tree), citrus foot rot (root infection), scale insects (whitish masses on leaves), aphids (curled leaves that fall off), and thrips (silver-white blotches on leaves and fruits, though the fruit remains edible).
