Citrus

Citrus

Originating in tropical and subtropical regions around the world, the Citrus is a common sight and ornamental in many Australian gardens. The citrus is an easy to grow, small, compact evergreen tree that displays an array of shiny green leaves, sweet aromatic flowers and brightly coloured, juicy lush fruit. The most popular grown citrus are the orange, the lemon, the mandarin, the grapefruit, and the lime.

  • Plant & Growing Tips:

    Citrus trees thrive in a consistently sunny, humid environment. In Australia, inland areas and dry coastal regions are preferred for citrus.

    Loams and sandy loams are the ideal soil types for planting. A minimum depth requirement of 60cm of well drained topsoil is needed with 80cm -1m as preferable.

    Avoid using very sandy soils that have poor water holding capacity or heavy clays that can lead to collar or root rot.

    The citrus requires a frost free position as leaf, branch and fruit damage can occur by even the lightest frost. Lemons, limes and grapefruits are much more frost sensitive than oranges, mandarins and cumquats.

    Offer a site with protection from prevailing winds. In exposed areas, windbreaks are essential.

    In summer water at least twice a week. Provide plants with a good soaking, this is particularly effective for young establishing trees. Mature trees can cope with just one good soaking a week. Container plants will require more watering attention as moisture evaporates much faster than plants in the ground.

    When the onset of flowering and fruit is present, watering is most important and should be increased.

    If planting several trees, 7m spacing is required between each row and 3.5-5m apart within the row.

    Citrus are perfect for small backyards, courtyards and balconies where dwarf varieties can be grown in containers and pots.

    Spring and early autumn are the optimum times for planting citrus.

    The citrus is rather self shaping. However, to improve air circulation under the tree, and to discourage fungal disease, you can prune away at some of the lower branches. Pruning back plants will also encourage fruit production.

  • Fertiliser Applications:

    Stage: Young Trees

    Product: Dinofert Organic Fertiliser, Dinofert Standard Pellets

    Gardener Use: 6 cups (1.2kg)

    Commercial Use: 1-1.5kg

    Comments: For citrus that has just been planted, apply fertiliser 6-8 weeks after planting. Citrus are heavy feeders and will require several applications throughout the year. The best time to fertilise is during early spring, late summer and early autumn. Scatter fertiliser around the drip line (underneath the outer foliage) but not too close to the trunk.

     

    Stage: Mature Trees

    Product: Dinofert Organic Fertiliser, Dinofert Standard Pellets

    Gardener Use: 15 cups (3kg)

    Commercial Use: Up to 4kg

    Comments: Apply around mature trees in early spring, late summer and early autumn in a broad band 20cm from trunk extending 50 to 100cm beyond canopy. Fruit bearing citrus trees thrive on high nitrogenous fertiliser and may take up to 12kg per year at a maximum of 4kg per split application. Fertilise along drip line.

Disclaimer

Please note that the above information and recommendations are provided in good faith and are given without liability for loss or damage suffered as a result of their application. Optimum response to fertilisers will only be achieved when weeds, insect pests and diseases are controlled and adequate soil water is available.

Fertiliser use recommendations are presented as a practical guide to good agronomic practice under most situations. Local soil, climatic and other conditions should also be taken into account as these could affect plant response to fertiliser rates and applications.

For further information we recommend you seek advice from your local agronomist.