Growth Rates of Lemon Trees

Climate

• Lemon trees can grow in humid or dry climates, but humidity is unfavorable for the curing and storing of lemons. California is the largest lemon-growing area, with annual rainfall ranging from 10 to 50 inches. During dry periods, however, the lemon tree needs irrigation. Since lemon is prone to cold, a temperature drop to 20 degrees Fahrenheit may damage the lemon tree and slow growth.

Size

• The size of the lemon tree also impacts growth. Citrus trees are available in standard, semi-dwarf and dwarf sizes. These sizes can be maintained for their growth in a large pot with a mature height of almost 6 feet. Nevertheless, the standard-sized citrus tree can grow from 18 to 25 feet high when planted in the ground as the roots are unrestricted. Since lime trees are not fast growers, they require 10 to 15 years to reach maturity. The semi-dwarf lemon trees grow about two-thirds in size as compared to the standard tree, whereas the dwarf lemon achieves 4 to 6 feet upon maturity.

Fertility

• The lemon tree can root itself in poor soil. In California, excellent growth is seen on silty clay loam soil that has a high capacity for retaining water. Unless lying over calcareous subsoil, black soils are suitable for lime tree growth. The pH level should be maintained at 5.5 to 6.5. Achieving this pH level for lime is essential if soil acidity is high.

Cultivation and Weed Control

• You don't need to work the soil to achieve good tree growth. In fact, disturbing the soil can damage the shallow roots and affect tree growth. Avoid heavy weed growth around and under the tree, however. Since weeds retard the lemon's growth rate, herbicides are necessary to keep weeds away. Check the label of the herbicide to see if the species of lemon can tolerate it and for rate of application.