Humboldt Hum-Bolt Humic Acid

Humboldt Hum-Bolt — Premium Humic Acid Concentrate

Hum-Bolt is a highly concentrated liquid humic acid derived from leonardite. Humic acids are the backbone of healthy soil — they chelate nutrients, buffer pH, improve soil structure, and feed beneficial microbes.

• High-grade leonardite source — maximum humic content
• Chelates nutrients — makes locked-out minerals plant-available
• Buffers soil pH — stabilizes the root zone
• Improves CEC — increases cation exchange capacity of soil
• Feeds soil biology — carbon source for bacteria and fungi

Use throughout the entire growth cycle. Compatible with all organic nutrient programs. Essential for container growing where natural humus is limited.