Curry Leaves
Don’t fertilize when the plant is in its dormant period, which occurs in the winter in colder climates. Because the curry leaf plant can be iron deficient, you can add a teaspoon of iron sulfate to the soil once a month. One symptom of iron deficiency is when the younger leaves develop chlorosis or yellowing in between their veins.
The absorbency of iron is highly reliant on pH level. For example, if the growing medium is above the measurement of pH 6.5, iron will convert into a form that is no longer accessible to the plant, resulting in an iron deficiency.. Iron (Fe) in plants acts much like how it does in the human bloodstream – it assists with transporting oxygen through a plant’s circulatory system. Iron plays an important role in the formation of chlorophyll, which is key for photosynthesis and gives plants their green colour.
Optimizing Phosphorus Fertilization: In certain circumstances, phosphorus (P) and Fe can react together to form insoluble iron phosphates.
Symptoms to look out for include:
- Leaf chlorosis – yellowing of plant leaves with green veins
- Yellow leaves occasionally turning white if worsened
- Signs of necrosis where flowering and plant growth is inhibited
- Poor growth and leaf loss
- Intense yellowing on the young leaves
- Growth shoots between veins