Lilac Wind Tolerance and Windbreak Suitability

Common lilac (Syringa vulgaris) on exposed ridges handles wind well — but fails as a windbreak because it's deciduous (leafless in winter when wind protection matters most).

Wind Tolerance

• Sturdy branches, flexible wood — resists breakage except in hurricane-force winds.
• Root system anchors well in most soils.
• Full sun on ridge = optimal flowering.

Windbreak Limitation

• Winter: No leaves = no wind reduction (50-60% reduction needs foliage).
• Summer: Good windbreak when leafed out.
• Solution: INTERPLANT with evergreens (arborvitae, spruce, juniper) for year-round function.

Design Recommendation

Plant evergreen windbreak row (primary), with lilacs as colorful secondary row on leeward side. Lilacs provide spring flowers and summer density; evergreens provide winter protection.

Lilacs belong IN a windbreak, not AS the windbreak.