How to Plant and Maintain a Formal Hedge

Spacing for Density

Plant shrubs closer than usual—half to one-third the recommended spacing—to create a thick hedge. Maintain full recommended distance from walkways or structures to avoid excessive pruning and bare wood at the base.

Initial Pruning

• Deciduous shrubs: Cut back by one-third (large) or to a few inches (small).
• Fast-growing broadleaf evergreens: Prune moderately.
• Slow-growing evergreens & conifers: Only shorten lateral branches; don't head back.

Ongoing Maintenance

First year: Trim only overly vigorous shoots. Subsequent years: Shear new growth by half after spring flush, and again mid-season if needed. In frost-prone areas, stop pruning by midsummer.

Shape for Health

Always slope sides so the base is wider than the top. This allows sunlight to reach lower foliage, preventing dieback. In snowy regions, a rounded or peaked top prevents snow accumulation and breakage.