Box Hedge
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Best Fertiliser for Box Hedges in Australia
The best fertiliser for Box Hedges (Buxus, English Box, Japanese Box) is Complete Grow All Purpose Liquid NPK 20-20-20. This balanced fertiliser provides equal parts nitrogen, phosphorus, and potassium, along with essential micronutrients, giving hedges the nutrients they need to stay dense, glossy, and healthy.
Why Fertiliser Is Essential
Box Hedges are slow-growing by nature, but without fertiliser, they grow even slower and often suffer from yellowing leaves or patchy growth. Fertiliser provides the energy plants need for:
- Nitrogen (N): Encourages lush, green foliage and thicker hedges.
- Phosphorus (P): Strengthens the root system for long-term stability.
- Potassium (K): Improves leaf colour, thickness, and resistance to stress.
- Micronutrients: Prevent deficiencies that cause pale or yellow leaves.
Regular feeding ensures Box Hedges recover quickly after trimming and maintain their formal shape year-round.
How and When to Fertilise Box Hedges
Box Hedges benefit most from light, regular feeding rather than occasional heavy applications. A liquid fertiliser is the fastest way to supply nutrients, especially after pruning.
- Spring: Start feeding as new growth emerges to support the first flush of leaves.
- Summer: Fertilise every 4โ6 weeks to maintain steady growth and hedge density.
- After Pruning: Always apply fertiliser to encourage fast, even regrowth.
- Autumn: Give a final feed before cooler weather to strengthen the hedge for winter.
Mix Complete Grow All Purpose Liquid NPK 20-20-20 at the recommended rate and water it in well. Because Box Hedges are shallow-rooted, regular watering and fertilising are crucial to avoid nutrient deficiencies.
Fertiliser Problems with Box Hedges
Many Box Hedge issues are linked to poor fertilising practices. Overfeeding with high-nitrogen fertilisers causes soft, weak growth, while underfeeding leads to pale leaves and sparse hedges. Balanced feeding is the solution.
For consistent results, Complete Grow All Purpose Liquid NPK 20-20-20 is the best option. It keeps hedges strong, healthy, and resistant to stress.
FAQ โ Fertilising Box Hedges
What is the best fertiliser for Box Hedges? A balanced liquid NPK like Complete Grow 20-20-20.
How often should Box Hedges be fertilised? Every 4โ6 weeks in spring and summer, and after trimming.
Can I use slow-release fertiliser? Yes, but liquid feeding is faster and better for consistent colour and density.
Why are my Box Hedge leaves yellow? Usually a nitrogen or magnesium deficiency, solved with regular balanced feeding.
Do Box Hedges need fertiliser in winter? Not usually, as growth slows, but a light autumn feed helps them through the season.
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