Apply humic acid to improve nutrient availability

What to Do

Apply a liquid humic acid product at the label rate (typically 3 oz per 1,000 sq ft) every 2-4 weeks during the growing season using a hose-end or backpack sprayer.

Why It Works

Humic acid acts as a chelating agent, binding to nutrients like nitrogen, phosphorus, and potassium and making them more available to grass roots. It stimulates beneficial soil microbial activity, helps break down thatch, and has a mild pH-buffering effect that stabilizes soil chemistry.

Tips

• Results build gradually over weeks and months — this is not a quick fix.
• Humic acid is most noticeable on stressed lawns or poor soils where nutrient availability is limited.
• Pair with kelp extract for a combined soil-health approach.
• Products like The Andersons Humic DG (granular) are easier to apply than liquids.