Use kelp extract to reduce drought and heat stress

What to Do

Apply liquid sea kelp extract at the label rate (typically 1-3 oz per 1,000 sq ft) every 2-4 weeks starting in late spring. It can be tank-mixed with humic acid for a combined application.

Why It Works

Kelp contains natural cytokinins and auxins that act as mild growth regulators and stress reducers. Research shows seaweed extracts can improve plant tolerance to abiotic stressors like drought and extreme temperatures. Kelp also acts as a natural rooting hormone, promoting root development.

Tips

• Effects are subtle and cumulative — kelp is a soil-health supplement, not a fertilizer replacement.
• Best results show up during summer stress periods, but start applying in spring to build up benefits.
• Products like Simple Lawn Solutions Sea Hume combine kelp and humic acid in one bottle.