Hello there, my Meyer lemon tree has a good crop of fruit but every lemon has very thick skin and a lot of white pith. How can I remedy this please? Thanks, Jean.

The main reason for this is nutrient imbalance. Even though citrus are easy care, if they don’t get the right balance of nutrients, it will affect how fruit develop. 

• Too much nitrogen is often the problem, this can come from heavy layers of animal manure, thick levels of compost or using a fertiliser that does not have a balance of nutrients and trace elements. 
• They require deep watering in summer when the fruit is developing, for established trees water once a week, for newly planted trees water 2-3 times a week until established. 
• To remedy, drench the plant with Tui Seaweed Plant Tonic, it will give the plant a boost and stimulate root growth, seaweed plant tonic can be applied every 2-4 weeks throughout the growing season.
• Apply Tui Citrus Food around the drip line in spring and again in late summer, early autumn. This is a balanced fertiliser which contains potassium and phosphorus which will help improve fruit quality.
• An additional application of Sulphate of Potash would also help with fruit quality.
• Could there be a chance that it is a variety other than Meyer lemon? Thick skinned fruit can also be due to the variety, some do have thick skin, especially older varieties.