Selecting Pond-Safe Trees: Toxicity and Debris Considerations

Japanese Maples Are Safe

Dwarf Japanese maples are standard koi pond companions. They drop leaves only in fall. Toxicity is negligible unless massive quantities rot in the pond.

Trees to Avoid

• Nut trees (walnut, pecan, hickory): Juglone toxin + heavy nut drop.
• Fruit trees: Fermenting fruit + pesticide residues.
• Large deciduous trees: Overwhelming leaf litter.
• Willows, poplars: Invasive roots puncture liners.

Reference

Toxic plant list: bonniesplants.com.

Practical Tips

Plant trees 10+ feet from pond. Net the pond in fall. Clean skimmer daily. Roots are a bigger threat than leaves.