Topping Magnolia and River Birch: Why It's Harmful and What to Do Instead

Do not top either tree. Topping (indiscriminate heading cuts) destroys natural form, triggers weak epicormic sprouts, invites decay, and shortens lifespan.

Better Solutions

• **River birch (35 ft, limbs on house):** Prune offending limbs **back to trunk or major lateral** during **dormant season** (winter) to minimize sap flow. This eliminates contact permanently.
• **Magnolia (16 ft, wants bushier):** Magnolias bloom on old wood. **Light shaping after flowering** (late spring) can encourage density—but **never remove the central leader**. Consider a smaller cultivar if space is truly limiting.

Resources Against Topping

• ISA: Why Topping Hurts Trees
• Comprehensive links: steamboats.com

**Prune with purpose: remove conflicts, preserve structure.**