Skip to content
On-site pickups can now be placed online, but please call us to schedule a pickup time.
On-site pickups can now be placed online, but please call us to schedule a pickup time.

Harmony Ag Organic Fertilizer (5-4-3) 9% Calcium - 40 lb Bag

  • Organic Status - OMRI Listed


Harmony Ag Organic Fertilizer w/ 9% Calcium (5-4-3) is our most popular fertilizer, made from composted poultry layer manure. All-purpose for vegetables, fruits, lawn and landscape. Slow release for steady, long-lasting color and growth.

Analysis: 1.0% water soluble nitrogen, 4.0% water insoluble nitrogen, 4.0% P2O5, 3.0% K20, 9.0% calcium, 0.7% magnesium, 0.73% sulfur, 0.2% iron. 395 ppm zinc, 52 ppm copper, 31 ppm boron.

Apply according to soil test report recommendations.
Vegetables: Apply at the rate of 35 pounds per 1000 sq ft or 1.5 cups per 10 ft. Reapply as needed. Possibly side dress at half the rate 4 to 6 weeks after planting.
Turf: For 1 lb of nitrogen per acre, apply 20 lbs per 1000 sq ft.
Flowers: 3 lbs. per 100 sq. ft. or 30 lbs. per 1000 sq. ft. Apply once or twice per season.
Shrubs: 5 lbs. per 100 sq. ft. or 50 lbs. per 1000 sq. ft. Scratch into the soil surface.
Trees: Apply 10 cups for each 1-inch of trunk diameter.

Original price $17.75 - Original price $17.75
Original price
$17.75 - $17.75
Current price $17.75

Honest Shipping, from our farm to yours


Not hiding shipping costs keeps it fair for everyone


Supplying farmers locally and nationally since 1990


Orders are packed and shipped quickly, accurately and with care

Customer Reviews

Based on 2 reviews
Love it

Easy to use and gives me outstanding results on my produce gardens and fruit trees. I have never worried about burning or harming my plants while using this fertilizer. I’ve recently expanded my orchard and the cost to purchase was getting prohibitive for the number of trees that I own. I’m so happy to have found 7 Springs by doing a Google search for this product. They make it affordable for me to purchase quantities that I need. If I include the 2 hour travel time to get it and gas, the price is still excellent. I’ll be making a larger order soon. Customer service, which is priority one for me, was also outstanding; on the phone and in person. I was a first time customer but now I’m a lifetime customer.

Kathleen F.
Excellent service

Quick, prompt analysis and service. Much appreciated.