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15-lb 5000-sq ft 1-0-1 Mineral Supplement

Ratings & Reviews for Ironite 15-lb 5000-sq ft 1-0-1 Mineral Supplement

4.3
396
Review
 4.3 out of 5
396 Reviews


87% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The Ironite Mineral Supplement 1-0-0 is widely praised for its ability to improve the health and appearance of lawns. Customers report the product makes the grass greener, thicker, and more lush, with some noting reduced mowing needs. While a few had minor issues like clumping, the overall sentiment is very positive, with the product described as a "game changer" that transforms lawns, making them darker green, healthier, and more vibrant. The product is also noted to be pet-safe, an important consideration for many homeowners.

Customer review summary generated by AI, including incentivized reviews.
396 Customer Reviews

Underperformed and Overpriced

Would Not Recommend

I was disappointed with this product's performance. I applied the granules as directed, but unfortunately, I did not see any noticeable improvement in my lawn's color or health. Additionally, the spreader settings provided were inaccurate, and the product did not distribute evenly. Based on my experience, I've had far better results with Milorganite, which I've found to be more reliable and effective.

July 23, 2025

From pennington.com

Response from penningtonpwr

Hi RyGuy11! We are sorry to hear that this product underperformed. We would like to hear more about your experience, as your feedback is truly importa...

penningtonpwrMay 10, 2026

Underperformed and Overpriced

Would Not Recommend

I was disappointed with this product's performance. I applied the granules as directed, but unfortunately, I did not see any noticeable improvement in my lawn's color or health. Additionally, the spreader settings provided were inaccurate, and the product did not distribute evenly. Based on my experience, I've had far better results with Milorganite, which I've found to be more reliable and effective.

July 23, 2025

From Pennington

Response from penningtonpwr

Hi RyGuy11! We are sorry to hear that this product underperformed. We would like to hear more about your experience, as your feedback is truly importa...

penningtonpwrJanuary 18, 2026

I would buy this product again and this is my 2nd year using

Would Recommend

The product is applied by spreader on front and back lawn. Within a week it has greened up. My yard is the neighborhood envy. Follow the application instructions and see the improvement.

July 17, 2025

From pennington.com

I would buy this product again and this is my 2nd year using

Would Recommend

The product is applied by spreader on front and back lawn. Within a week it has greened up. My yard is the neighborhood envy. Follow the application instructions and see the improvement.

July 17, 2025

From Pennington

Fantastic Product

Would Recommend

I've been using this product for a long time and results are phenomenal. You need to use as directed. Why the negative reviews! This product works as stated everytime. Brings the green out beautifully after about 7 to ten days. If your not getting good results I'd say maybe your lawn is lacking some crucial elements preventing the Iron and minerals from being taken up in the roots of the grass. Have your soil tested. Our soil around here is pretty horrible and rocky but the Ironite brings out th...

April 8, 2025

From pennington.com

Response from penningtonpwr

We're happy to hear it. We appreciate your business!

penningtonpwrMay 10, 2026

Fantastic Product

Would Recommend

I've been using this product for a long time and results are phenomenal. You need to use as directed. Why the negative reviews! This product works as stated everytime. Brings the green out beautifully after about 7 to ten days. If your not getting good results I'd say maybe your lawn is lacking some crucial elements preventing the Iron and minerals from being taken up in the roots of the grass. Have your soil tested. Our soil around here is pretty horrible and rocky but the Ironite brings out th...

April 8, 2025

From Pennington

Response from penningtonpwr

We're happy to hear it. We appreciate your business!

penningtonpwrJanuary 18, 2026

WOULD NOT BUY AGAIN AS NO CUSTOMER PRODUCT SUPPORT AVAILABLE

Would Not Recommend

FIRST OFF THEY SHOULD HAVE SOME THERE TO ANSWER THE PHONE WHEN THEY ARE SUPPOSE TO BE OPEN 8:00 TO 6:00 MON THRU FRIDAY. I LIVE IN MOUNTAIN STANDARD TIME ZONE AND CALLED THE 1-800 NUMBER THREE TIMES AT 8:30/8:45/9:45 - THAT WOULD BE 9:30/9:45/10:45 THEIR TIME (CENTRAL STANDARD TIME). THEIR MESSAGE SAID TO EITHER CALL BACK DURING NORMAL BUSINESS HOURS WHICH STARTS AT 8:00 TO 6:OO CENTRAL TIME BUT MY ONLY OPTIONS WAS TO LEAVE A MESSAGE. A COMPANY THAT SELLS CHEMICAL PRODUCT SHOULD HAVE SOMEONE THE...

June 15, 2024

From pennington.com

Response from penningtonpwr

We apologize for the delay in responding to your needs. Our customer service team is dedicated to helping all of our customers and can sometimes be bu...

penningtonpwrMay 10, 2026

WOULD NOT BUY AGAIN AS NO CUSTOMER PRODUCT SUPPORT AVAILABLE

Would Not Recommend

FIRST OFF THEY SHOULD HAVE SOME THERE TO ANSWER THE PHONE WHEN THEY ARE SUPPOSE TO BE OPEN 8:00 TO 6:00 MON THRU FRIDAY. I LIVE IN MOUNTAIN STANDARD TIME ZONE AND CALLED THE 1-800 NUMBER THREE TIMES AT 8:30/8:45/9:45 - THAT WOULD BE 9:30/9:45/10:45 THEIR TIME (CENTRAL STANDARD TIME). THEIR MESSAGE SAID TO EITHER CALL BACK DURING NORMAL BUSINESS HOURS WHICH STARTS AT 8:00 TO 6:OO CENTRAL TIME BUT MY ONLY OPTIONS WAS TO LEAVE A MESSAGE. A COMPANY THAT SELLS CHEMICAL PRODUCT SHOULD HAVE SOMEONE THE...

June 15, 2024

From Pennington

Response from penningtonpwr

We apologize for the delay in responding to your needs. Our customer service team is dedicated to helping all of our customers and can sometimes be bu...

penningtonpwrJanuary 18, 2026

No Effect

Would Not Recommend

Grabbed a bag of this instead of a product I've used previously and didn't realize it was iron oxide and not a useful product like iron chelate. The portion of my lawn with the competitor's product got some dark green, while the Ironite portion is still yellow. Threw the bag out like a dummy, so I wouldn't see a refund from their guarantee.

May 16, 2024

From Pennington

No Effect

Would Not Recommend

Grabbed a bag of this instead of a product I've used previously and didn't realize it was iron oxide and not a useful product like iron chelate. The portion of my lawn with the competitor's product got some dark green, while the Ironite portion is still yellow. Threw the bag out like a dummy, so I wouldn't see a refund from their guarantee.

May 16, 2024

From pennington.com

Your Lawns secret weapon

Would Recommend

Easy to apply and really boosts your lawn. You will be suy

April 2, 2024
From 15-lb 5000-sq ft 1-0-1 Mineral Supplement Verified Purchaser
Was this Review Helpful ?

Make your neighbors jealous. Mine are.

Would Recommend

If you want a blue/green lawn, put this down in the early spring. The iron greens the lawn and the little bit of nitrogen feeds it.

February 24, 2024
From 15-lb 5000-sq ft 1-0-1 Mineral Supplement Verified Purchaser
Was this Review Helpful ?

Absolutely

Would Recommend

I applied the Pennington ironite and I have noticed a difference in the color and health of my lawn within 2 weeks. I will continue to use this product in the future.

May 24, 2023

From Pennington

Absolutely

Would Recommend

I applied the Pennington ironite and I have noticed a difference in the color and health of my lawn within 2 weeks. I will continue to use this product in the future.

May 24, 2023

From pennington.com

Greener lawn

Would Recommend

I still think it’s too early to tell but my lawn definitely looks greener than my neighbors’ lawns

May 20, 2023
From 15-lb 5000-sq ft 1-0-1 Mineral Supplement Verified Purchaser
Was this Review Helpful ?

Would definitely buy again and recommend this product.

Would Recommend

About a month after overseeding. My grass wasn't giving me that dark green look that. All my neighbors had. After doing some research and using this product. I can see it slowly getting that darker color that I was looking for. Although, I wasn't sure if it'll work. I only did half the recommended amount for my lawn. But the results are looking great. Thanks for a great product. Would love to have a Pennington tshirt.

April 26, 2023

From pennington.com

Would definitely buy again and recommend this product.

Would Recommend

About a month after overseeding. My grass wasn't giving me that dark green look that. All my neighbors had. After doing some research and using this product. I can see it slowly getting that darker color that I was looking for. Although, I wasn't sure if it'll work. I only did half the recommended amount for my lawn. But the results are looking great. Thanks for a great product. Would love to have a Pennington tshirt.

April 26, 2023

From Pennington