Plant guide:🍋 Lemon Tree
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Nutrients

Yellowing Leaves on Lemon Tree From Nutrient Deficiency

Commonly affects: Citrus limon (Lemon Tree)

Leaves yellow in various patterns — overall pale colour, yellowing between green veins, or yellow blotching — depending on the specific nutrient involved.

Potential Causes

  1. 1Nitrogen deficiency causing overall pale yellowing, particularly on older leaves
  2. 2Iron deficiency causing interveinal yellowing (green veins, yellow tissue between them), often linked to alkaline soil or container mix pH
  3. 3Magnesium deficiency causing yellow blotching often starting at leaf margins
  4. 4Citrus being naturally heavy feeders that deplete container soil relatively quickly

Solution Steps

  1. 1Feed regularly with a citrus-specific fertiliser formulated with the micronutrients citrus commonly needs
  2. 2Apply a chelated iron supplement if interveinal yellowing specifically is present, and check soil pH if it persists
  3. 3Apply Epsom salt (magnesium sulfate) as a supplement if magnesium deficiency's characteristic pattern is present
  4. 4Refresh container potting mix periodically, since citrus depletes nutrients faster than many houseplants

Prevention Tip

Citrus-specific fertiliser, formulated with the micronutrients this plant family commonly lacks, resolves far more yellowing than a generic all-purpose feed.