Fertilizing a Young Bald Cypress

Best Fertilizer for a 4-Year-Old Bald Cypress

A homeowner asks for the best fertilizer type for a 4-year-old bald cypress (Taxodium distichum).

Recommendation

• Product: Balanced granular fertilizer (10-10-10 or similar).
• Rate: 1 pound per inch of trunk diameter (measured at 4.5 ft).
• Method: Scatter evenly under the canopy (drip line), not against trunk. Water in thoroughly—ideally before rain.
• Timing: Spring and early fall. Avoid late-season fertilization.

Critical Warning

Never use "weed and feed" lawn products near trees. They contain broadleaf herbicides (2,4-D, dicamba) that can kill or severely damage bald cypress and other broadleaf trees.

Key Takeaway

Use 10-10-10 at 1 lb/inch trunk diameter, spring and fall. Keep herbicide-containing lawn products far from the root zone.