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Nutrients

Potassium Deficiency in Passion Fruit

Commonly affects: Passiflora edulis (Passion Fruit)

Leaf edges develop a scorched, brown, crispy margin while the leaf interior stays green, and fruit quality and retention decline.

Potential Causes

  1. 1Insufficient potassium relative to this fruiting vine's high demand
  2. 2Sandy soil with poor nutrient retention
  3. 3Heavy nitrogen feeding without balancing potassium

Solution Steps

  1. 1Apply a potassium-rich fertiliser, especially once flowering and fruiting begins
  2. 2Use a balanced fruiting fertiliser rather than a high-nitrogen general feed during fruit development
  3. 3Mulch with potassium-rich organic matter like composted banana peels or wood ash in moderation

Prevention Tip

Switch to a potassium-heavy fruiting feed once flowering starts — passion fruit's potassium needs increase sharply during fruit development.