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Citrus Tree Pruning

Citrus trees are largely self-shaping, requiring little pruning. Occasional pruning to shape leggy branches or to give a citrus tree the desired shape can be done any time of the year except winter.

Pinch back tips of new growth to help round out citrus trees. Cut back erratic new growth or trunk suckers not wanted above the graft union. Head back upright growth to limit the size of a citrus tree.

Mature citrus trees can be pruned to remove dead, diseased, or broken branches. Prune also to admit light to the fruit–but only if the branching and leaf cover is excessive.

Citrus trees store their food in their leaves; the amount of foliage on a tree is directly related to the amount of fruit the tree will produce.

The best citrus pruning practice is to remove unwanted growth while it is still small. Pruning early in a tree’s life will make pruning of mature trees almost unnecessary.

Training Citrus

Citrus trees can be trained to a high branching structure–with the lowest branches several feet above the ground.  But citrus branches can be allowed to “skirt” the tree–that is hanging almost to the ground. The fruit on skirted trees is easier to reach–and weed growth is controlled. Full skirted trees are less susceptible to bark and fruit sunburn which is important in hot and dry regions.

Orange and grapefruit trees require very little pruning; their twiggy growth will fill out into full, rounded shape. Lemon and lime trees have an upright growing habit; vigorous lemon growth may require pinching or heading pack to keep a pleasing shape.

Thinning and heading back will result in the loss of some crop. Shaping is best done early in the tree’s life–when the tree is smaller and pruning is easier; this will allow for heavier fruit yield in later years.

Buddha's hand
Buddha’s hand

Pruning Established Citrus Trees

Established and neglected citrus trees can be pruned to restore shape. Remove dead, damaged, or diseased wood first. If extensive pruning is required, prune the tree so that the main scaffold branches remain. Newly exposed bark–the trunk and interior branching–should be protected from sunburn by the application of indoor latex white paint or protective paper or cloth wraps. Citrus bark is thin and easily damaged by sun exposure; sunburned bark will become hard and brittle and may peel.

 Cold Weather Damage to Citrus

Foliage and branching damaged by frost or freezing weather should not be thinned or pruned away until new growth begins and the damaged area is clearly defined. Minor frost damage includes yellow, droopy, and wilted leaves. Leaves that have been frozen will shrivel and drop from the tree; they may remain on the tree for several weeks without drying or turning color before dropping. Allow new growth to begin before pruning away frost or freeze damage; do not prune until the threat of frost is past. Remove damaged fruit immediately after a freeze.

Citrus trees damaged by frost or freezing weather may require major pruning or removal. Do not begin this process until the extent of the dieback is clear; this could be several weeks or months after the freeze.

Citrus that has been heavily pruned should be only lightly fertilized. Keep the ground just moist, but do not overwater freeze damaged or heavily pruned citrus.

Many citrus trees have thorns. Use heavy gloves, goggles, and pruners suited for the size of the tree and branches you are pruning.

Also of interest:

How to Plant, Grow, Prune, and Harvest Citrus

Common Oranges: Valencia and Trovita

Satsuma Mandarin Orange

Clementines: Kitchen Basics

 

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8 Comments

    • Your soil or fertilizer may be very rich in nitrogen resulting in extra green growth. If you prune now, any flowers your prune away will mean less fruit. But it you don’t prune, many flowers will set fruit and the weight of ripening fruit could result in branches breaking.

  1. Hi Steve
    My grapefruit tree (Poor man’s orange) is at least 60 years old and is not only far too big but it produces far too many fruit.
    They drop on the garage roof and wake all the neighbours!!
    I would like to prune it to down to the same level as the guttering on the garage. It is not the fruit I am interested in (give it all away)
    but I want to keep the tree because it gives my bedroom privacy.
    How savage can I be?

    • The best strategy for pruning a mature tree is to take it slow. Look at the tree as a whole; develop a multi-year pruning strategy. Do not remove more than 25 percent of the whole in one year’s time. First, remove dead or diseased branches. Next, remove weak branches or branches that are crossing or rubbing against each other. Then you can begin to shape the tree or head it back removing top growth. To get the tree to the size you want may take two or three years. Taking more than 25 percent of the tree in a year could cause the tree severe stress.

    • Used coffee grounds can be used for several different purposes in the garden: (1) used coffee grounds are slightly higher in nitrogen than phosphorus and potassium, so they can be used as a fertilizer; (2) used coffee grounds add organic matter to the soil which can, in turn, be used as a food for worms and beneficial microorganisms; (3) used coffee ground will repel some insects (and frogs), so they can be used to discourage snails, slugs, and other pests from reaching and feeding on plants; (4) used coffee grounds mixed with compost can help open up clay soil making the soil better drained. It’s best to mix used coffee grounds with aged compost (or to add them to the compost pile) or with organic planting mix rather than to simply dump them onto the soil alone. A more specific answer to your question would be: used coffee grounds will benefit citrus because they are slightly higher in nitrogen than phosphorus and potassium; citrus benefit from more nitrogen. Mix the grounds into your native soil (by scratching the ground into the soil with a steel rake) or mix them with another amendment such as aged compost. Adding coffee grounds to compost is the safest method of application.

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