Repotting a Root-Bound Philodendron: Root Pruning Guide

Philodendrons are vigorous growers that can become severely root-bound after years in the same pot. When roots fill the container and begin circling, the plant struggles to absorb water and nutrients. The solution? Root pruning during repotting.

Step-by-Step Root Pruning

1. Remove the plant carefully from its pot. If it's stuck, tap the sides or run a knife around the edge.
2. Trim the rootball: Using a sharp, clean knife, slice off 2–3 inches from the bottom and all around the sides. Cut only roots—avoid damaging the stem or crown.
3. Optional division: If the plant is large, you can split the rootball down the middle and pot each half separately—great for sharing!
4. Repot: Return the plant to the same pot (cleaned) or a slightly smaller one. Fill gaps with fresh, well-draining potting mix. Water thoroughly.

Aftercare

• Place in bright, indirect light.
• Water when the top inch of soil feels dry.
• Hold off on fertilizer for 4–6 weeks to let roots recover.

Root pruning rejuvenates old philodendrons, encouraging fresh growth and preventing decline. It's a routine task that keeps these tropical favorites thriving for decades.