Citrus x limon or Lemon Tree is probably from Asian origin and has been imported in Europe as early as the 1st century AD. It is now grown around the world.
A phylogenetic study showed that it is a cross between sour orange (Citrus aurantium) and citron (Citrus medica).
Its fruit, called lemon, is consumed in cooking because of its sour taste. It contains a lot of vitamin C, which is why it was used in the navy to prevent scurvy (a disease caused by vitamin C deficiency).
This is a slightly rustic tree (short frost to -8 °C). However, it is better overwinter it in a frost free place.
The lemon tree is a tree with a spherical crown, 4-6 m high. The branches are thorny.
The foliage is evergreen. The leaves are dark green, leathery, elliptic-obovate to lanceolate green. They give off a scent when they are wrinkled.
The flowers are pleasantly scented. They are produced in groups. They are white inside, white-pink outside. Flowering occurs throughout the year.
The fruit is oblong and measures 7-12 cm long. It has a thick fleshy and glandular skin. The fruit is a green bay that turns yellow when ripe. The flesh is juicy, divided into segments. It contains few seeds.
Lemon, Lemon Tree
Citrus: from the Latin citrus (citrus, citronnier)
Limon: from the Persian limun (citrus)
Citrus × aurantium, Citrus × aurantium var. mellarosa, Citrus × bergamia, Citrus × bergamia subsp. mellarosa, Citrus × bergamota, Citrus × limodulcis, Citrus × limonum, Citrus × mellarosa, Citrus × meyeri, Citrus limonum, Citrus medica fo. limon, Citrus medica subsp. limonia, Citrus medica var. limon, Citrus medica var. limonum, Limon × vulgaris
USDA zone 9, -8 °C but over short periods. It is recommended to keep it in a frost free place during winter.
All year round
Seed, cuttings, grafting and layering. Grafting ensures plants with the same characteristics as the parent plant and generally produces more fruit than plants propagated seed or cuttings.
Flowering and fruiting takes place 3-5 years after sowing or planting.
- collect seeds from vigorous plants and mature fruit
- clean the seeds and let partially dry
- sow in moist sowing mix
- 20-30 °C
- germination time: 5-50 days
Any soil, well drained
Water till saturation and then water again when the rootball dries. This prevents the roots from rotting.
Universal or specialized for citrus and olive liquid fertilizer, once a week during the growing period, once a month in winter.
In summer, the plant may be grown outdoors in full sun and sheltered from the wind. Overwinter in a cool room at 5-10 °C.