Added to Cart
Product Title
Variant Title
View All Products
Clay & Hard Soil Kit

Clay & Hard Soil Kit

A complete system to conquer your clay soil fast.
Easy to apply and goes to work in as few as 10 days! Everything you need to finally conquer your clay soil fast – organically and naturally!
5lbs. (250 sq. ft.)
Choose size:
$42.95 5lbs. (250 sq. ft.)
$42.95 5lbs. (250 sq. ft.)
$127.95 19lbs. (1,000 sq. ft.)
$399.95 79lbs. (4,000 sq. ft.)
$779.95 197lbs. (10,000 sq. ft.)

Sign up for our newsletter and receive $10 off



250 sq. ft.

  • 12 oz. OPTIMIZE Soil Optimizer
  • 8 oz. PENETRATE Liquid Biotiller
  • 1.5 lbs. Nourish-Biosol
  • 2 lbs. MAXIMIZE Microbes & Minerals

1,000 sq. ft.

  • 3 lbs. OPTIMIZE Soil Optimizer
  • 32 oz. PENETRATE Liquid Biotiller
  • 6 lbs. Nourish-Biosol
  • 8 lbs. MAXIMIZE Microbes & Minerals

4,000 sq. ft.

  • 12 lbs. OPTIMIZE Soil Optimizer
  • 128 oz. PENETRATE Liquid Biotiller
  • 24 lbs. Nourish-Biosol
  • 32 lbs. MAXIMIZE Microbes & Mineral

10,000 sq. ft.

  • 30 lbs. OPTIMIZE Soil Optimizer
  • 320 oz. PENETRATE Liquid Biotiller
  • 60 lbs. Nourish-Biosol
  • 80 lbs. MAXIMIZE Microbes & Minerals


  • Optimize: Concentrated organic humate soil conditioner
  • Penetrate: Clay soil treatment
  • Nourish: Fast acting organic fertilizer
  • Maximize: Concentrated organic soil amendment



  • 14% Humic Acid from Leonardite (as per State of Ca. humic acid definition) .78% Iron


  • PART A: 150 million colony forming units of beneficial bacteria per milliliter
  • PART B: 25% Kelp, 3% Saponin extract from Yucca


  • Derived from fermentation of Soybean meal, cottonseed meal, sulfate of Potash magnesia.


  • 1.9% Calcium, .33% Magnesium and .46% Iron from naturally occurring Wollastonite, Basalt and Granite.
  • Trace amounts of the following minerals from naturally occurring Basalt and Granite: Copper, Zinc, Boron, Cadmium, Molybdenum, Nickel, Selenium.
  • Beneficial Aerobic Soil Bacteria: 150 micrograms per milliliter.
  • Beneficial Soil Protozoa: 4,000 per gram.
  • Beneficial Soil Fungi: 230 micrograms per milliliter.
  • Beneficial Fungal Mycorrhizae:
    • Glomus aggregatum: 154 propagules/lb*
    • Glomus mosseae: 150 propagules/lb*
    • Glomus intraradices: 156 propagules/lb*

*Glomus etunicatum: 152 propagules/lb


Optimize: Apply topically at 3 lbs per 1,000 sq ft with a whirlybird spreader or by hand.

Nourish-Biosol: Apply topically at 6 lbs per 1,000 sq ft with a whirlybird spreader or by hand.

Maximize: Apply topically at 8 lbs per 1,000 sq ft with a whirlybird spreader or by hand

Optimize, Nourish-Biosol, and Maximize can be conveniently mixed or they can be applied separately. Blend together only as needed, they store better and longer when kept separate.

Penetrate: Divide product provided so you can make four equal applications. Apply 8oz (4oz A and 4oz B) per 1,000 sq ft in 1 gallon of water in three separate applications 2-10 days in between each, based on your own convenience. Then apply the three dry products concurrently with the final (4th) application. Apply Penetrate after Optimize, Nourish-Biosol, and Maximize during the 4th application.

Download product instruction sheet
Customer Reviews
4.8 Based on 16 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
Customer Photos
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Rick S.
United States United States

Dead soil getting better

My soil in turf areas was so hard I couldn’t put a shovel in it. In planter areas when I dug a hole the inside of the hole looked like an unfired clay pot. I am happy to report all areas of my yard are greatly improved.

United States United States

No noticeable effect

No noticeable effect

United States United States

Great Product!!!

I love it and it has produced positive results!! Great as Advertised!!! Get yours today!!!

Richard K.
United States United States


My experience with the products are superb. John and Bob’s products are a staple in my garden and lawn supplies…

John & Bob's Smart Soil Solutions Clay & Hard Soil Kit ReviewJohn & Bob's Smart Soil Solutions Clay & Hard Soil Kit Review
United States United States

Works on subsoil too

I bought this kit for an area where I had thrown a bunch of subsoil years ago. I wanted to plant some blue berries there that my neighbor had dug up and given me. I knew they wouldn't make it in subsoil so I got the kit and applied it to the soil. So far the blue berries doing just fine.