Transplanting Mature Arborvitae: Risks and Better Alternatives

A homeowner in Eugene, Oregon, has a 15-year-old arborvitae hedge where two of five plants died. They're considering moving a 15–20-foot-tall specimen to fill the gap for aesthetics and future spacing. While understandable, transplanting a large, established arborvitae carries significant risk.

Why Transplanting Large Arborvitae Is Problematic

Arborvitae grow rapidly—often over two feet per year—and a 20-foot specimen has an extensive root system. After 15 years, the trauma of transplanting can be fatal. The fact that two original plants already failed suggests site conditions may not be ideal, further reducing transplant success odds.

Better Options: Plant New, Prune Existing

Instead of moving the large shrub, purchase a new nursery specimen of similar size. These establish quickly, often come with a transplant guarantee, and can be professionally installed with a large root ball. Meanwhile, selectively prune the taller existing arborvitae to encourage a more uniform height across the hedge.

If You Must Move It, Hire Professionals

If relocation is non-negotiable, hire a landscape company with tree-spade equipment and a written survival guarantee. Never attempt this yourself, and avoid transplanting once summer heat arrives.

Investing in a new plant is the safer, more reliable path to a cohesive hedge.