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Soil Test Kit

Item #: 1601

List price: $16.99

Our price: $13.95 You save $3.04 (18%)

Use this Soil Test Kit to assess your garden soil conditions. Includes 40 tests for primary plant nutrients (N-P-K) and pH levels. read more

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Our Price: $13.95


If your plants appear stunted and yields are low, the problem may be caused by poor plant nutrition or unfavorable soil conditions. By testing your soil, you determine its exact condition so you can fertilize more effectively and economically, and experience better growing results.

Great for gardeners at any skill level. We found this kit easy to use, quick, and informative.

Features & Benefits:

  • Tests for primary nutrients 1) Nitrogen 2) Phosphorous 3) Potassium
  • Tests soil pH level (acid or alkaline)
  • Includes 10 tests for each of the 4 factors (40 tests total)
  • Learn the exact condition of your garden soil
  • Use results to fertilize more effectively and economically
  • Adjust soil nutrients for healthier plants and better yields
  • Includes guide listing nutrient needs and pH preference for over 450 plants

Kit Includes:

  • 4 color coded test chambers, 40 test capsules, dropper for transferring soil solution, complete instructions, and fertilizer recommendations


Soil should be tested periodically throughout the growing season. In particular, it is recommended to test before planting in Spring and when preparing garden beds in Fall.

In this soil test kit all supplies are color coded for simplicity. Simply mix soil sample with water, transfer some of the solution to the test chamber, add powder from matching capsule, shake, and wait while the solution develops. Then compare the color of soil solution to the color chart on the reference chamber.

For N-P-K test results, the nutrient level is indicated on a scale from 0 (depleted) to 4 (surplus). For example, possible nitrogen test results are N0- depleted, N1- deficient, N2- adequate, N3- sufficient, and N4- surplus. For the pH test, results are indicated on a scale from pH 4.5 (acidic) to pH 7.5 (alkaline). Record test results and use to adjust fertilizers.


With many fertilizers available for different growing situations, it can be difficult to choose which fertilizers you need to improve your garden. Most fertilizers and soil amendments are labeled with a N-P-K rating (i.e. 4-2-6) standing for the ratio of primary plant nutrients: nitrogen (N), phosphorous (P) and potassium (K). These three factors are crucial to the development and success of all plants.

Nitrogen is essential for plant nutrition. It is directly responsible for producing leaf growth and green leaves. A nitrogen deficiency causes yellow leaves and stunted growth. A nitrogen surplus causes overabundant foliage and delayed flowering.

Phosphorous is necessary for growing plants. It is the major constituent of plant genetics and seed development. Phosphorous is also essential for photosynthesis. Phosphorous increases plants' vitamin content, seed yields, and fruit and flower development. It also builds resistance to disease and prepares plants for winter conditions.

Potassium (or Potash) allows for regulation of water and nutrients, increasing plant hardiness. Potassium promotes flowering and fruiting. Plants deficient in potassium are often stunted, root systems are poorly developed and leaves may be dried out at the edge.

Acidic or Alkaline?

Another important factor for plant health is the pH level of your soil, which controls how plants utilize soil nutrients. All plants have a preferred pH range for optimal growth. In general most cultivated plants prefer a slightly acidic to neutral pH range of 6.0-7.0. Outside of this range some soil nutrients become unavailable.

100% Satisfaction Guarantee

We want you to be completely satisfied with every purchase you make. If you are in any way dissatisfied with a product you ordered, we'll exchange it, replace it or refund your money within 30 days of purchase. Simply email us the problem, and we'll take care of you. Please call us at 1-888-451-6752 if you need further clarification.

Additional Information

Weight 5.25 oz.
Key Feature Tests pH and N-P-K levels in soil, includes 40 tests total; plus fertilizer reference chart for over 100 plants
Origin Made in the U.S.A.

Shipping Information

Shipping Details:
Insured against damage or loss while in transit
This Product Ships To:
US & Canada
Ships Via:
Fedex or UPS

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