Growing fuller boxwood hedges in Victoria, BC, where the climate is generally conducive to gardening, requires attention to planting, care, and maintenance practices. Here are key steps to achieve lush, dense boxwood hedges:

1. Choose the Right Variety

Select a boxwood variety that thrives in Victoria's climate and suits your desired hedge height and fullness. Some popular choices for hedges include Buxus sempervirens (common boxwood) and Buxus microphylla (littleleaf or Japanese boxwood), known for their dense foliage and growth habit.

2. Planting Properly

• Spacing: Plant boxwoods closer together for a dense hedge, typically about 1 to 2 feet apart, depending on the variety's mature size. However, avoid overcrowding, which can lead to poor air circulation and disease.
• Soil: Boxwoods prefer well-draining soil with a slightly acidic to neutral pH. Amend heavy clay or sandy soils with organic matter to improve structure and fertility.
• Location: Choose a site that receives at least part sun to part shade. Too much shade can lead to sparse growth, while too much sun in hotter climates can stress the plants.

3. Watering Wisely

Water newly planted boxwoods regularly to establish a deep root system, then reduce frequency. Boxwoods prefer evenly moist soil but are prone to root rot in overly wet conditions. Use mulch to help retain soil moisture and regulate temperature.

4. Fertilizing for Growth

Feed your boxwoods in early spring with a balanced, slow-release fertilizer formulated for evergreens or specifically for boxwoods. This will promote healthy, vigorous growth. Avoid high-nitrogen fertilizers that can encourage leggy growth rather than dense foliage.

5. Pruning for Density

Prune your boxwood hedges in late winter or early spring before new growth starts:

• Thinning: Remove some older branches entirely to improve light penetration and air circulation throughout the hedge, which encourages new growth from the base.
• Shaping: Trim the sides lightly to encourage branching, which results in a denser appearance. Avoid cutting into old wood that may not readily sprout new growth.

6. Disease and Pest Management

Keep an eye out for common boxwood problems like boxwood blight, leaf miners, and spider mites. Promptly address any issues with appropriate cultural practices or treatments. Healthy plants are more likely to grow full and dense.

7. Mulching and Soil Care

Apply a 2-3 inch layer of organic mulch around the base of your boxwoods to conserve moisture, suppress weeds, and provide nutrients as it breaks down. Avoid piling mulch against the stems to prevent rot.

By following these practices, gardeners in Victoria, BC, can cultivate fuller, healthier boxwood hedges that enhance the landscape's beauty and privacy. Regular care and monitoring will ensure your boxwoods develop into the lush, green hedges you desire.