Box Hedge
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How Fast Do Box Hedges Grow?
Box Hedges are known for their formal look and slow, steady growth. In Australia, growth rates vary depending on the variety, climate, and care. On average, Box Hedges grow between 10โ30 cm per year, with Japanese Box being faster than English Box.
Growth Rates by Variety
- Japanese Box (Buxus microphylla var. japonica): Moderate to fast-growing, 20โ30 cm annually with good care.
- English Box (Buxus sempervirens): Slow-growing, 10โ15 cm annually, ideal for formal low borders.
- Korean Box (Buxus microphylla var. koreana): Medium growth, around 15โ20 cm annually, good for cold climates.
Growth speed is strongly influenced by fertiliser, water, and sunlight โ meaning a slow hedge can often be encouraged to grow faster with the right care.
How to Speed Up Hedge Growth
Although naturally slow, Box Hedges can be encouraged to grow faster with consistent feeding and proper maintenance. Key strategies include:
- Fertiliser: Apply a balanced liquid fertiliser every 4โ6 weeks in spring and summer.
- Watering: Keep soil evenly moist, especially for shallow-rooted young plants.
- Pruning: Light, regular trims stimulate new shoots and bushier growth.
- Sunlight: Ensure at least 4โ6 hours of direct sun for steady growth.
The best choice is Complete Grow All Purpose Liquid NPK 20-20-20, which provides nitrogen for foliage, phosphorus for roots, and potassium for resilience. Being liquid, it works quickly, helping hedges fill out faster and more evenly.
Why Box Hedges Grow Slowly
The main reasons Box Hedges fail to grow quickly are poor soil, lack of fertiliser, or irregular watering. Pests like mites can also stress plants and slow growth. By correcting these issues, most hedges can be brought back to healthy, steady growth.
Consistent feeding with Complete Grow 20-20-20 prevents nutrient deficiencies and ensures Box Hedges put on maximum growth each season.
FAQ โ Growth Speed of Box Hedges
How much does a Box Hedge grow per year? Between 10โ30 cm depending on the variety and conditions.
Which Box Hedge grows the fastest? Japanese Box is the quickest, with up to 30 cm of growth annually.
Why is my Box Hedge not growing? Usually due to poor fertilising, dry soil, or low light.
How can I make Box Hedges grow faster? Fertilise regularly with a balanced liquid NPK and prune lightly to encourage bushy growth.
Do Box Hedges ever stop growing? They grow slowly but steadily, eventually reaching 1โ2 m if left untrimmed.
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