Humax (Gallon)

Humax is a concentrated humic acid product designed to improve soil health and nutrient availability for a wide range of crops and plants. Derived from high-quality leonardite, it contains 12% humic acids that help stimulate beneficial soil biology, enhance root growth, and increase the uptake of essential micronutrients such as calcium, phosphorus, magnesium, and iron. Humic acids also improve soil structure, aiding water retention and reducing nutrient leaching.

Suitable for use as either a soil drench or a foliar application, Humax is compatible with most fertilizer solutions as well as biological and enzymatic formulations, making it easy to integrate into existing fertility programs. Lower foliar application rates can improve the efficiency of nutrient absorption, while higher soil application rates deliver long-lasting benefits to soil quality and plant vigor. Its versatility makes it an excellent choice for use in vegetable gardens, orchards, vineyards, and ornamental plantings.

Whether you’re looking to boost nutrient uptake during the growing season or improve long-term soil fertility, Humax offers a natural, effective solution to support healthy plant growth.

Explore more soil health solutions in our Soil Amendments collection.

• Active Ingredient: 12% humic acids from leonardite
• Foliar Rate: 4–16 oz/acre to enhance nutrient uptake; 16–32 oz/acre standard application
• Soil Rate: 32–64 oz/acre in water or fertilizer solutions
• Application: Soil drench or foliar spray

SEEDTIME FULFILLED SHIPPING (items fulfilled by Seedtime)

• We ship to the USA only.
• We offer free shipping on all products fulfilled by Seedtime with an order value over $49
• Orders placed before 12pm Eastern Time ship the same day. Orders after 12pm Eastern Time will ship the next business day. Timing applies to orders in the lower 48 States.
• Standard delivery time is 3-7 business days.
• Easy 30 day returns or exchanges.

RETURNS

Your satisfaction means the world to us which is why all of your orders are backed with our 30 Day Satisfaction Guarantee. Either you love it, or you can return it for an equal exchange or get a full refund. Just send us a support ticket to support@seedtime.us and we'll be glad to help you with your return.

Other Vendor Fulfilled Shipping & Returns

We offer products that are fulfilled by other vendors. Vendors shipping rates and return policies may vary and returns may be subject to a restocking fee. Please reach out to support@seedtime.us for any specific questions on vendor shipping or return policies.