Eastern white cedar hedges in Northern Ontario typically grow 15 to 30 centimetres (6 to 12 inches) per year once established, depending on soil quality, sunlight exposure, watering, and growing conditions. Cedar is the most popular hedging species in the Powassan, North Bay, and Nipissing District area because it is native, winter-hardy, evergreen, and creates a dense privacy screen. Martin Services plants cedar hedges across the region and can advise on what to expect for growth rate at your specific property.
Factors That Affect Growth Rate
Sunlight is the biggest factor — cedars in full sun (6 or more hours of direct light) grow significantly faster than those in partial shade. Soil quality matters too — rich, well-drained soil with consistent moisture produces the fastest growth, while compacted clay or dry sandy soil slows things down. Watering during the first two to three years after planting is critical for establishing strong roots. Northern Ontario's short growing season means cedars have less time to put on new growth compared to Southern Ontario, which is why our 15 to 30 centimetre estimate is more conservative than what southern nurseries might promise.
What to Expect Year by Year
In the first year after planting, growth may be minimal as the cedar focuses energy on root establishment. By year two and three, you should see noticeable new growth of 15 to 20 centimetres per year as the root system strengthens. Mature, established cedars with good growing conditions can push 25 to 30 centimetres annually. A cedar hedge planted at 4 to 5 feet tall can reasonably be expected to reach 6 to 8 feet within three to five years in Northern Ontario. For faster results, Martin Services can source larger specimens — though they cost more, they give you an instant privacy screen.
Maximizing Growth Rate
To get the fastest growth from a new cedar hedge, water deeply and consistently for the first three years — at least once per week during dry periods. Mulch around the base to retain moisture and moderate soil temperature. A spring application of hedge fertilizer can boost growth. Avoid pruning new cedars aggressively in the first few years — light shaping is fine, but heavy pruning removes the growth points you need for filling in. Martin Services plants, maintains, and prunes cedar hedges with 35 years of experience knowing what works in Northern Ontario conditions.
Want a cedar hedge planted? Call Martin Services at (249) 506-9211 for a free estimate on hedge planting. We serve Powassan, North Bay, Callander, and all surrounding areas.