Box Hedge
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Why Are My Box Hedge Leaves Yellow?
Yellow leaves on Box Hedges are one of the most common problems gardeners face. While watering issues and pests can play a role, the main cause is almost always nutrient deficiency. Because Box Hedges are shallow-rooted and slow-growing, they rely heavily on consistent fertiliser to stay green and dense.
Nutrient Deficiencies That Cause Yellowing
- Nitrogen deficiency: Older leaves turn pale yellow while new shoots appear weak.
- Magnesium deficiency: Yellowing occurs between green leaf veins, more common in sandy soils.
- Iron deficiency: Young leaves turn light yellow with green veins, especially in alkaline soils.
These problems typically occur when Box Hedges are not fertilised regularly, or when soil conditions limit nutrient uptake.
Restoring Green, Healthy Foliage
Yellow leaves cannot turn green again, but feeding will ensure new growth is strong and healthy. The fastest solution is to introduce a regular liquid fertiliser program that provides all major nutrients plus micronutrients.
The best choice is Complete Grow All Purpose Liquid NPK 20-20-20. It delivers nitrogen for leaf colour, magnesium and iron for chlorophyll production, and potassium for overall leaf strength. Because itโs liquid, it works quickly to correct deficiencies.
- Feed every 4โ6 weeks in spring and summer.
- Apply after pruning to support fresh, green regrowth.
- Ensure consistent watering to help nutrients move into the root zone.
Preventing Yellow Leaves on Box Hedges
The key to preventing yellow leaves is consistent care. Because Box Hedges grow slowly, any stress or deficiency shows up quickly in their foliage. Balanced fertiliser ensures hedges remain dense, green, and resilient year-round.
- Fertilise regularly with Complete Grow 20-20-20.
- Water deeply but avoid waterlogging, which limits nutrient uptake.
- Mulch lightly to retain soil moisture and improve nutrient availability.
FAQ โ Yellow Leaves on Box Hedges
Why are my Box Hedge leaves turning yellow? Usually due to nutrient deficiency, especially nitrogen or magnesium.
Can yellow leaves turn green again? No, but fertiliser ensures new growth comes through healthy and green.
How do I stop Box Hedges from yellowing? Use a balanced liquid fertiliser every 4โ6 weeks in the growing season.
Will watering alone fix yellow leaves? No โ fertiliser is essential, as water cannot replace missing nutrients.
What fertiliser is best to fix yellow leaves? Complete Grow All Purpose Liquid NPK 20-20-20 for fast, balanced correction.
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