Encouraging a cedar hedge to fill in quickly in Victoria, BC, involves several key gardening practices tailored to the local climate and the specific needs of cedar trees. By providing the right conditions and care, you can help your hedge become denser and more uniform at a faster rate. Here's how:

1. Select the Right Cedar Variety

First, ensure you have a cedar variety that suits the Victoria climate and is known for fast growth. The Western Red Cedar (Thuja plicata) is a popular choice in the Pacific Northwest for its growth rate and adaptability.

2. Planting Density

When initially planting your cedar hedge, consider the recommended spacing for the variety you've chosen, but err on the side of slightly closer spacing to encourage a dense hedge. However, be careful not to plant them too close, as this can lead to competition for resources and slower overall growth.

3. Soil Preparation and Mulching

Cedars thrive in well-draining, fertile soil. Before planting, amend the soil with organic matter like compost to improve soil structure and fertility. After planting, apply a layer of mulch around the base of your cedars to retain moisture, regulate soil temperature, and reduce weed competition. Be sure not to pile the mulch against the trunk, as this can encourage rot.

4. Watering

Cedars require consistent moisture, especially during their establishment phase and in the dry summer months common in Victoria. Water your hedge deeply and regularly, allowing the soil to dry slightly between waterings. This encourages the roots to grow deeper, supporting faster top growth.

5. Fertilization

Feed your cedar hedge in early spring and again in mid-summer with a balanced, slow-release fertilizer formulated for evergreen trees and shrubs. Proper nutrition supports healthy, vigorous growth, helping the hedge to fill in more quickly.

6. Pruning

Regular pruning is essential for encouraging a dense growth habit. Prune lightly but frequently during the growing season to stimulate branching, which results in a fuller hedge. Avoid heavy pruning, especially on older cedars, as they do not regrow well from old wood. Always use sharp, clean pruning tools to make clean cuts.

7. Pest and Disease Management

Monitor your hedge for signs of pests or diseases, which can slow growth or cause thinning. Common issues include root rot (due to poor drainage) and cedar leaf blight. Address any problems early with appropriate cultural practices or treatments.

8. Provide Protection

In their first few years, young cedar plants might benefit from some protection during the harshest winter months. Although Victoria's climate is relatively mild, unexpected cold snaps can damage tender growth. Use burlap screens to shield your hedge from drying winds and extreme cold if a harsh winter is forecasted.

By following these guidelines, you can help your cedar hedge in Victoria, BC, grow denser and more robust, filling in faster to create the lush, privacy-providing barrier you desire. Remember, patience and consistent care are key to achieving a healthy and beautiful hedge.