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Best Citrus Fertiliser: How to Feed Your Lemon, Lime, and Orange Trees for Maximum Health and Yield
Growing vibrant and productive citrus trees, including lemons, limes, and oranges, requires the right balance of nutrients. To keep your citrus trees strong, healthy, and producing high-quality fruit, the choice of fertiliser is crucial.
Our Citrus Fertiliser Blend is specially formulated to meet the unique needs of citrus trees, delivering the perfect balance of Nitrogen, Phosphorus, Potassium, and essential micronutrients. It ensures healthy foliage, abundant blooms, and rich, juicy fruit throughout the growing season.
Whether you’re growing citrus trees in your backyard or on a balcony, the correct fertilisation schedule is key to ensuring consistent growth and fruiting. Our Citrus Fertiliser Blend is designed specifically for these needs, with a high concentration of potassium to improve fruit quality, phosphorus for robust root development, and a low nitrogen profile to avoid excessive leafy growth.
Why Our Citrus Fertiliser Blend is the Best Choice for Your Trees
Our Citrus Fertiliser Blend was created with a deep understanding of citrus plant biology and nutritional needs. It is specifically formulated to encourage optimal fruit production, healthy root systems, and vibrant, green foliage. The product is made for both **potted** and **in-ground** citrus trees, ensuring that no matter where you plant your citrus, they receive the right nutrients.
- High Potassium Content: Potassium is essential for fruit quality. Our blend helps increase fruit size, sweetness, and peel strength.
- Low Nitrogen Levels: Low nitrogen prevents excessive leafy growth and ensures energy is directed towards flowering and fruit production.
- Phosphorus for Root Health: Adequate phosphorus promotes strong root development, which is crucial for water and nutrient uptake, especially in citrus trees with shallow root systems.
- Magnesium and Calcium: Magnesium enhances chlorophyll production, while calcium strengthens cell walls and prevents rind splitting in fruit.
By using our **Citrus Fertiliser Blend**, your citrus trees will be supported through each phase of growthโfrom establishing roots and developing flowers to fruit-bearing and harvesting. This balanced fertiliser ensures you get the best results with minimal effort.


How to Fertilise Citrus Trees for Optimal Growth & Fruit Production
To achieve the best results, applying the right fertiliser at the right time is essential for citrus trees. Our **Citrus Fertiliser Blend** is specially designed to address the distinct needs of these plants, helping them thrive in both **potted** and **in-ground** environments. The key is a balanced, seasonal feeding schedule that supports your treeโs growth and fruiting cycles.
Seasonal Feeding Schedule
- Spring: Apply a full feed as buds form to encourage strong new growth. Dissolve 1โ2 tablespoons of fertiliser per metre of canopy in water and drench the soil evenly.
- Summer: Reapply every 3โ4 weeks to maintain fruit sizing, sweetness, and overall vitality. Always water deeply after feeding.
- Autumn: A lighter feed to store energy for the next season and strengthen roots as the weather cools.
- Winter: No feeding required. This is a dormant period, so focus on pruning and mulching to retain moisture.
Feeding Citrus in Pots and Containers
Potted citrus trees require more frequent feeding since they leach nutrients more rapidly. Use a half-strength solution every 2-3 weeks during active growth, and be sure to flush the pots with water monthly to prevent mineral build-up and ensure healthy root systems.
Application Tips for Best Results
- Always water the soil before applying fertiliser to protect the fine feeder roots.
- Apply fertiliser evenly beneath the canopy, avoiding the trunk to prevent burning.
- Best applied early morning or late afternoon to minimise evaporation and prevent leaf stress.
- Mulch lightly after application to help retain moisture and improve nutrient absorption.


Feeding Citrus Trees for Optimal Growth and Fruit Production
Proper fertilising ensures your citrus trees are provided with the nutrients they need to thrive, producing large, healthy fruit year after year. By following a seasonal feeding schedule and applying the right amount of fertiliser, your citrus trees will grow strong roots, lush foliage, and delicious, high-quality fruit.
Best Practices for Fertilising Citrus Trees
When applying fertiliser, the most important thing to remember is to give your citrus trees the right nutrients at the right time. Regular feeding during the growing season promotes healthy root development, flower formation, and fruit set. However, you should also avoid over-fertilising, as this can lead to nutrient imbalances and stress the tree.
Key Application Tips for Best Results
- Water Before Fertilising: Ensure the soil is moist before applying any fertiliser. This helps avoid root burn and allows the nutrients to be absorbed more effectively.
- Even Application: Spread the fertiliser evenly around the root zone, ensuring it is not concentrated near the trunk or stems. This prevents localised nutrient buildup that could cause harm.
- Apply Early or Late: Fertilising early in the morning or late in the afternoon can reduce evaporation, ensuring the fertiliser remains effective and is absorbed properly.
- Regular Mulching: Mulch around the base of the tree after fertilising to help retain moisture, suppress weeds, and improve nutrient absorption.
How to Spot Nutrient Deficiencies in Citrus Trees
Even with regular feeding, citrus trees may show signs of nutrient deficiencies. Recognising these signs early can help you address issues before they become serious. Here are some common deficiencies you might encounter:
Magnesium Deficiency (Yellowing Leaves Between Veins)
Magnesium deficiency manifests as yellowing between leaf veins, often referred to as interveinal chlorosis. This can be remedied by applying a fertiliser with added magnesium, such as our **Citrus Fertiliser Blend**, which will help restore green pigmentation to the leaves.
Nitrogen Deficiency (Pale Yellow Leaves, Stunted Growth)
If your citrus tree’s leaves turn pale yellow and the growth slows, it could be a sign of nitrogen deficiency. However, be careful not to overapply nitrogen as this can lead to excessive leaf growth with little fruiting. Our **Citrus Fertiliser Blend** provides a balanced nitrogen level to encourage healthy growth without over-stimulation.
Iron Deficiency (Yellow Leaves with Green Veins)
Iron deficiency in citrus trees results in yellowing of leaves, particularly in younger growth, with the veins staying green. Iron chelates are needed to correct this imbalance. Our **Citrus Fertiliser Blend** offers micronutrient support to help avoid such issues.
Frequently Asked Questions About Feeding Citrus Trees
Why is low-nitrogen fertiliser better for citrus trees?
Excessive nitrogen can lead to an overgrowth of leaves, while preventing flowers and fruit from forming. A controlled nitrogen level in our **Citrus Fertiliser Blend** encourages balanced growth, focusing energy on flower and fruit production rather than just foliage.
How often should I fertilise my citrus trees?
Feed citrus trees every 4-6 weeks during the growing season (spring through summer). In winter, pause fertilisation as the tree enters a dormant phase. Our **Citrus Fertiliser Blend** provides sustained nutrients, reducing the need for frequent reapplications.
What is the best time to apply fertiliser to citrus trees?
The best time to fertilise citrus trees is early morning or late afternoon. This reduces evaporation and ensures the fertiliser is absorbed efficiently. Avoid fertilising during the hottest part of the day to prevent nutrient loss.
Why are my citrus trees producing small fruit?
Small fruit can be caused by nutrient imbalances, especially a lack of potassium or phosphorus. Ensure your citrus is receiving a balanced feed, such as the **Citrus Fertiliser Blend**, to support proper fruit sizing, sweetness, and juice content.
Final Recommendation
For optimal citrus tree health, choose the CompleteGrow Citrus Fertiliser Blend. This expertly balanced fertiliser is designed to keep your citrus trees healthy, productive, and fruiting for years to come. Itโs the best choice for vibrant foliage and high-quality fruit!
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