Position:
Eureka lemon trees thrive in warm subtropical and tropical climates. They prefer full sun but can tolerate some shade, although they are sensitive to cold temperatures and should be protected from frost.
Soil type:
The optimal soil pH level for growing lemons and many other plants is 5.5 to 6.5. If the soil is too alkaline, with a pH of 7.0 or higher, the iron in the soil becomes inaccessible to the lemon tree, leading to iron deficiency. Add 1-2 bags of acid compost to your soil before planting.
Watering:
Citrus trees need soil that is moist but not wet. The best method for watering citrus trees is to water deeply and infrequently. Water when the top 5 cm of soil is dry. Test by pressing a finger into the soil to the second knuckle and feel whether it is dry or moist.
Mulching:
Apply 2 to 5 centimetres of pine bark mulch to protect the roots from UV damage and drying out. It retains moisture and maintains an optimal pH. Do not let the mulch touch the plant stem, as it may cause infection or rot.
Fertilising:
Eureka lemons benefit from monthly fertilising from April through September. Yellowing leaves usually indicate that the tree needs fertiliser or is overwatered.
Use a slow-release, nitrogen-rich fertiliser, like our berry fertiliser (excellent for citrus). Apply 1 teaspoon of our berry fertiliser every 4-5 months.
Pruning:
Prune your tree periodically to keep it healthy and in shape. Cut back the branches that do not produce fruit. This will allow the side branches to spread and grow into that space. The side branches will then be strong enough to bear the weight of the fruit. Cut any branches growing towards the trunk to increase airflow between the branches. The best time to prune is after fruiting.
Pests & Diseases:
Citrus trees are susceptible to aphids, red spider, and mildew. We recommend Effective Microorganisms to prevent the spread of these pests and diseases. Spray the tree down harshly to remove the insects first, then spray with Agricultural Neem Oil or Effective Microorganisms (EM Control ) from our store.
Harvesting:
Harvest the lemons when they are fully coloured and firm to the touch. Lemons can be picked as needed and are typically ripe from late autumn through winter.
