
Citrus trees are one of the most popular fruit trees to grow in Australia, with their fragrant flowers and brightly coloured fruits. They are well-suited to the Australian climate and can be grown in both pots and gardens, provided they have sufficient sunlight and are planted in quick-draining soil. When it comes to planting citrus trees, spacing is important to ensure their healthy growth and fruit production.
| Characteristics | Values |
|---|---|
| Sunlight | Minimum of 5 hours of full sun per day |
| Soil | Well-drained, quick-draining, rich, light |
| Watering | Deep and thorough, occasional |
| Fertiliser | Fruit & Citrus Plant Food, liquid feed, SeaMax® Organic Fertiliser Liquid, Flourish Fruit & Citrus Soluble Plant Food |
| Pests | Citrus leafminer, scale, aphis |
| Pruning | 2-3 metres wide and tall |
| Planting Time | Late winter or early spring (August-October), spring and autumn |
| Distance from Fence | More than 1 metre |
| Distance from Wall | As far as possible |
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What You'll Learn

Citrus trees need a gap of 2-3 metres around them
Citrus trees are a great addition to any garden, with their fragrant flowers and brightly coloured fruits. They are well-suited to the Australian climate and can be grown in most parts of the country. If you're planning to grow citrus trees, it's important to give them the space they need to thrive. As a general rule, citrus trees should have a gap of 2-3 metres around them. This allows them to get enough sunlight and promotes healthy growth.
When planting citrus trees, it is important to consider the spacing between them. The recommended distance of 2-3 metres between trees is based on the mature size of the trees. This spacing allows adequate air circulation and sunlight penetration for each tree. Planting them too close together can lead to overcrowding, which will hinder their growth and crop yield. It is also important to note that the root systems of citrus trees can be invasive and may cause damage to nearby structures, so it is important to consider this when deciding on spacing and placement.
Citrus trees require full sun and well-drained soil to thrive. When planting, it is recommended to dig a hole at least two to three times the size of the pot the tree is currently in and enrich the soil with fertilisers. This will give the roots ample space to grow and access nutrients. The hole should be filled with water to check that it drains within 30 minutes. If it doesn't, consider adding natural fertilisers like blood and bone, rotted manure, or potash to improve drainage.
Proper spacing is crucial for the long-term health and productivity of citrus trees. By providing them with the recommended 2-3 metre gap, you encourage strong and healthy growth. This spacing also makes it easier to care for the trees, such as when mulching or fertilising. Adequate spacing also reduces competition for resources, allowing each tree to access the sunlight, water, and nutrients it needs to produce delicious fruits.
In addition to spacing, it is important to consider the timing of planting. The best times to plant citrus trees in Australia are spring and early autumn, avoiding the extreme heat of summer. This gives the trees a chance to establish themselves before the onset of extreme temperatures. For bare-rooted trees, late winter to early spring (August to October) is recommended to minimise stress and ensure the roots do not dry out.
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Plant in late winter/early spring
Citrus trees are well-suited to the Australian climate and can be grown in both pots and gardens. They require a bit of love, attention, and the right growing conditions to thrive. The best time to plant citrus trees is in late winter or early spring (August to October), when the risk of frost has passed, to minimise stress on the trees. Planting outside this season increases the risk of tree failure.
When planting citrus trees, it is important to choose the right position and soil. Citrus trees need a full sun position and plenty of room to grow in all directions. Ideally, they should have a 2-3 metre gap all around them. If planted in a position where they are overcrowded or shaded by other trees, they will not grow or crop well. Citrus trees also need well-drained soil. To test if your soil drains quickly enough, dig a hole and fill it with water to see if it drains in less than 30 minutes. You can improve the soil by adding natural fertilisers such as blood and bone, rotted manure, and potash.
Before planting, dig a hole that is at least two to three times the size of the pot the tree is growing in. Remove the plant from its bag or pot and gently tease out the roots so they are oriented in all directions. Cut off any roots that have started to spiral and are root-bound, as this will affect the growth of your tree. Place the tree in the hole and backfill with soil, being careful not to bury the tree too deep. The soil surrounding the tree should be level with the surrounding ground. Gently pat down the soil with your foot to create a slightly firmer area around the tree, which will help the water stay long enough to penetrate the root zone before running off the surface.
After planting, water the tree thoroughly. As little as 5 litres of water per tree will practically eliminate any planting stress and settle the soil around the root system. Newly planted trees may require irrigation within 24 hours if the weather is hot, or a few days if the weather is mild. Regular fertilising is also important to promote strong, healthy growth, which will help the tree produce better crops of fruit.
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Watering and fertilising
When planting citrus trees, it is important to space them correctly to allow for proper air circulation and sunlight exposure. The recommended spacing between citrus trees in Australia varies depending on the type of citrus tree and the rootstock used. Generally, dwarf citrus trees should be planted about 2.5 to 3.5 metres apart, while standard-sized citrus trees should be spaced about 4 to 5 metres apart.
Now, onto the watering and fertilising instructions:
Watering:
Citrus trees require regular watering, especially during the first few years after planting. The frequency of watering depends on the climate, soil type, and season. In general, citrus trees should be watered deeply and less frequently, allowing the soil to dry out slightly between waterings. Overwatering can be detrimental, leading to root rot and other issues.
For newly planted citrus trees, water thoroughly to help establish a strong root system. During the first year, water deeply twice per week in the absence of rainfall. In the second year, water once or twice a week, and from the third year onwards, the roots will be well-established, and the frequency can be reduced to once a week or bi-weekly, depending on the weather.
Always ensure that water reaches the outer edges of the canopy, as this is where the majority of feeder roots are located. Water slowly and thoroughly to encourage deep root growth. Avoid shallow, frequent watering, as this can lead to weak, shallow root systems that are more susceptible to stress.
Fertilising:
Citrus trees are heavy feeders and will benefit from regular fertilisation. A well-balanced fertiliser with nitrogen, phosphorus, and potassium (NPK) is ideal. Apply fertiliser three to four times per year for established trees, with the first application in early spring, just as new growth begins. The second application can be made in late spring or early summer, followed by another in late summer or early fall. Finally, a winter application can be made in late fall or early winter to promote healthy growth in the following spring.
For newly planted trees, hold off on fertilising until the tree shows signs of new growth. At this point, use a balanced citrus tree fertiliser or a slow-release granular fertiliser. Avoid high-nitrogen fertilisers during the first year, as they can promote leafy growth at the expense of root development.
Always follow the manufacturer's instructions for application rates and methods. Spread the fertiliser evenly under the canopy, away from the trunk, and water it in well. Avoid excessive fertiliser, as this can burn the roots and cause damage.
When fertilising citrus trees, it is important to monitor the tree's health and adjust the fertiliser type and application rate as needed. Keep in mind that over-fertilisation can be just as detrimental as under-fertilisation. Always follow best practices for fertiliser storage and handling to ensure the safety of yourself, your trees, and the environment.
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Sunlight requirements
Sunlight is essential for citrus trees to thrive, and the amount of sunlight they receive can significantly impact their growth, fruit production, and overall health. In Australia, where the climate can vary widely, it is important to consider the sunlight requirements of citrus trees when planning your garden or orchard.
Citrus trees generally require full sun to grow and produce fruit optimally. Full sun typically means at least 6-8 hours of direct sunlight per day. When planting citrus trees in your yard or garden, choose an area that receives direct sunlight during most of the day. Avoid planting in areas that are shaded by buildings, large trees, or other structures that may block the sun's rays.
The direction of sunlight is also important to consider. In the southern hemisphere, such as in Australia, citrus trees should be planted in a north-facing direction to receive maximum sunlight exposure. This orientation ensures that the trees receive direct sunlight throughout the day, promoting healthy growth and fruit development.
While full sun is ideal, some citrus varieties can tolerate partial shade, especially in warm climates. If you live in an area with hot summers, providing some afternoon shade can help protect the trees from heat stress and sunburn. However, too much shade can lead to reduced fruit production and inferior fruit quality.
Additionally, the amount of sunlight required may vary slightly between different citrus varieties. For example, lemons and limes tend to be more tolerant of partial shade than oranges and grapefruit. It is always best to research the specific requirements of the citrus variety you plan to grow, as this can help ensure you provide them with the optimal amount of sunlight.
By ensuring your citrus trees receive the appropriate amount of sunlight, you can create the ideal conditions for their growth and enjoy a healthy and productive tree for years to come. Proper sunlight exposure is a key factor in successful citrus tree cultivation, contributing to an abundant harvest of delicious, nutritious fruit. With the right care and attention to their sunlight needs, your citrus trees will thrive and provide a plentiful supply of vibrant, juicy citrus fruits.
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Soil preparation
Soil Type and pH:
Citrus trees prefer a slightly acidic to neutral pH level, ideally between 6.0 and 7.5. Test your soil's pH using a testing kit or a local agricultural extension service. If your soil is highly alkaline, you can amend it by adding
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Frequently asked questions
Citrus trees need plenty of room to grow, so ideally, they should have a 2-3 metre gap all around them. They also need at least five hours of full sun per day.
The best time to plant citrus trees is in late winter or early spring (August-October), when the risk of frost has passed. Avoid planting in the heat of summer.
Dig a hole at least twice as wide as it is deep. Water-storing crystals can be added to the hole. Remove the plant from its bag or pot and gently tease out the roots so they face outward. Cut off any roots that have started to spiral. Place the plant in the hole and backfill with soil, being careful not to bury the tree too deep. Water the tree thoroughly.



































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