Protecting Plants from Dryer Vent Heat Damage

The Dryer Vent Problem

Three rhododendrons planted near a back door in Massachusetts: two thrive in full sun, but the one in front of the dryer vent has died. Hot, moist exhaust kills woody stems and buds.

Practical Solutions

• Redirect the Exhaust: Build a plywood screen or vent deflector to push hot air away from the planting bed.
• Replace the Rhododendron: Once the screen is in place, replant a new rhododendron for visual continuity.
• Alternative Plants: Even hydrangeas will suffer winter stem kill from vent heat. No plant tolerates this microclimate.

Why Moving the Healthy Plants Isn't Necessary

The two thriving rhododendrons are well-established. A simple vent screen solves the problem without disturbing them. The screen is low-cost, effective, and preserves the mature landscape.