Ironite Mineral Supplement by Pennington, 1-0-0 Fertilizer, 3 lb.
Ironite Mineral Supplement by Pennington, 1-0-0 Fertilizer, 3 lb.
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Ironite Mineral Supplement by Pennington, 1-0-0 Fertilizer, 3 lb.

Key item features

  • Iron rich Mineral Supplement
  • Contains more iron for a deeper green
  • For use on: lawns, flowers, shrubs, vegetables, trees
  • Non-burning and non-staining Fertilizer
  • Helps grass use nutrients found naturally in the soil
  • NPK 1-0-0 fertilizer
  • Read and follow all package instructions, warnings and labels
  • Coverage area: 1000 square feet
  • 3 lb. ; 0.14 cuft
  • Condition: New
Current price is $10.97$3.66/lb
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About this item

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Customer ratings & reviews

4.5 out of 5 stars
stars505 ratings337 reviews
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Reviews summary

Pros

  • : Simple to use and spread without complexity.
  • : Supports healthy development in various plant types.
  • : Produces a deeper, darker lawn color.
  • : Helps to revive and produce new grass in areas.

Neutral

  • : Can be intuitive, but settings may be finicky.
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Showing 1-3 of 337 reviews

Dec 18, 2025
debbie
Top Reviewer
Item details
Size: 3 lbs
5 out of 5 stars review

Verified Purchase

I applied Ironite to my lawn in May and my grass became very green, even while my soil had tested alkaline. Next spring, I will definitely use Ironite again

Helpful?33NKWDJ1S3K3257664295
Apr 12, 2025
zcarp
Item details
Size: 15 lbs
5 out of 5 stars review

Verified Purchase

If you want to know the trick to a deep green lawn, add ironite to your fertilizer routine. Follow instructions on the bag and your neighbors will all want to know your secret.

Helpful?33NKWDJ1S3K3257664295
Oct 17, 2025
Katja
Item details
Size: 15 lbs
5 out of 5 stars review

Verified Purchase

Leaves went from yellow to green

This was the fertilizer that worked to turn the leaves on my hibiscus green and get it blooming again. It helped a struggling rose as well.

Helpful?33NKWDJ1S3K3257664295