Citrus limon
| Lemon (Citrus limon) | |
|---|---|
| Lemons (Citrus × limon) at Outjo, Namibia | |
| Common names | Lemon |
| Scientific name | Citrus limon [1] |
| Genus | Citrus |
| Family | Rutaceae [2] |
| Order | Sapindales |
| Habit | Evergreen fruit tree [3] |
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Citrus limon, commonly called lemon, is an evergreen citrus fruit tree. In warm-climate cultivation it is valued for its edible fruit and can remain productive without a second lemon variety for cross-pollination. Cultivar, rootstock, crop load, temperature, and general culture affect growth and the interval from flowering to harvest. [3]
Description[edit | edit source]
Lemon commonly forms an upright, spreading tree about 10–20 ft tall in the Florida home-landscape context described by UF/IFAS. Fruit characters and production behavior vary among cultivars. Citrus is evergreen, so a planted tree does not follow the pronounced winter dormancy of a deciduous fruit tree. [3] [4]
Cultivation[edit | edit source]
Soil and water[edit | edit source]
Use a well-drained soil rather than a site that remains saturated. UF/IFAS gives a soil-pH range of 5.5–6.5 for lemon and discusses irrigation, drainage, pruning, pests, and diseases in Florida home landscapes. Match irrigation to root-zone drying and rainfall, keeping young trees supplied while avoiding prolonged waterlogging. [3]
In containers, drainage is especially important because a small root volume can stay wet after rain or frequent irrigation. Rootstock choice can alter tree growth and yield, so a compact label or nursery claim should not be treated as a fixed size for every lemon tree. [3]
Sun and humidity[edit | edit source]
Choose the brightest practical position with good air movement. Lemon needs relatively little heat compared with many citrus crops and can produce good fruit in suitable near-coastal climates; that does not remove the need for a warm, frost-protected site where freezes occur. [4]
As a Citrus, it is reasonable to begin with open exposure and regular root-zone moisture while protecting young growth from drying winds; this is a genus-level cultivation inference, not a measured species-specific humidity requirement. [4]
Seasonal changes[edit | edit source]
Lemon remains evergreen through the year. Flowering-to-harvest timing is variable: UF/IFAS gives a range of about 4–12 months depending on cultivar, crop load, temperature, and culture. Adjust irrigation to the local wet and dry pattern rather than applying one calendar schedule, and maintain drainage during rainy periods. [3]
Propagation[edit | edit source]
Commercial and home-landscape lemon trees are typically propagated by grafting or budding onto a rootstock. Certified disease-free nursery trees are the safer starting material where available. Rootstocks influence tree growth, yield, fruit quality, and mineral relations, but the specific effect depends on the rootstock and production conditions; no single dwarfing outcome should be assumed for every cultivar. [3]
Flowering, fruiting, and harvest[edit | edit source]
Lemon is generally self-fruitful, so a second variety is not normally required for cross-pollination. Flowering and fruit development can overlap across the year in warm climates, but the time to harvest varies with cultivar, temperature, crop load, and culture. Young grafted trees in the Florida production context may begin producing around the third year; this is a regional production value, not a universal schedule. [3] [4]
Fruit and uses[edit | edit source]
Lemon is grown as an edible fruit crop. Cultivar differences affect fruit characters and the timing of the crop, so harvest should follow the selected cultivar's maturity and quality pattern rather than a single species-wide date. [3]
Container observations also show why cultivar and rootstock context matters. In a 2026 TropicalFruitForum discussion, brian in Pennsylvania zone 6 described a Lisbon lemon grafted onto Flying Dragon rootstock in a heated greenhouse as productive but still vigorous, with long internodes and large leaves. 70Malibu in Fullerton, California, described Eureka as maintainable in a pot or in the ground while a seedless Lisbon became very large. SoCalGardenNut described a neighbor's potted Lisbon kept at 3–4 ft with more than 22 fruits, while his own potted Meyer and Eureka trees were smaller than a ground-grown Eureka. These individual observations lack complete age and container-volume details and should not be treated as universal size or yield limits. [5]
Photos[edit | edit source]
Unripe fruits of Citrus limon Historical botanical illustration of lemon, showing a flowering branch, fruit, and seed sections
References[edit | edit source]
- ↑ [5] Dwarf lemon options? Tropical Fruit Forum; discussion containing attributed container-growing observations.
Image credits[edit | edit source]
- Citrus limon fruit at Outjo, Namibia: Hans Hillewaert, CC BY-SA 3.0, attribution required; individual file page: Citrus x limon (Outjo).jpg.
- Unripe lemon fruits: Commonists, CC BY-SA 4.0, attribution required; individual file page: Unripe fruits of Citrus limon.jpg.
- Historical botanical illustration of lemon: Franz Eugen Köhler / historical work, Public domain (PD-old); individual file page: Köhler’s Medizinal-Pflanzen lemon plate.
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