Luster Leaf® Rapitest Soil Test Kit

Before planting, learn what your soil needs to make your garden and plants thrive.
  • Soil Test Kit for N, P, K, pH
    SKU: 1275203
  • $16.00
  • Soil Tester - pH Only
    SKU: 1275204
  • $5.99
  • 10 pH Test Capsules
    SKU: 1275205
  • $3.19
  • 10 Nitrogen Test Capsules
    SKU: 1275206
  • $3.19
  • 10 Phosphorus Test Capsules
    SKU: 1275207
  • $3.19
  • 10 Potash Test Capsules
    SKU: 1275208
  • $3.19
  • Capsule Combo Pk - N, P, K, pH
    SKU: 1275210
  • $9.99
  • Description
  • Instructions
  • Technical
  • Reviews
The Rapitest Soil Test Kit is designed for simplicity of use and accurate results. We are pleased to sell the complete kit as well as refill capsules. The soil test kit contains 4 patented, specially designed soil testing devices called "color comparators" - one each for pH (Green), Nitrogen (Purple), Phosphorus (Blue) and Potassium/Potash (Orange). Each comparator has a removable film color chart and color coded top. Capsules needed for each test are also color coded.

Luster Leaf Rapitest Soil Test Kit includes:

  • 4 color-coded comparators.
  • 40 test capsules, 10 each for pH, nitrogen, potassium, and phosphorus.
  • Water dropper for accurate filling of testers.
  • Complete instructions for adjusting soil pH.
  • Fertilization guidelines and pH preference list for over 450 plants.
  • How Does it Work?
    All you do is take a soil sample from 2 – 3 inches below the surface, mix with water, transfer some of the solution to the color comparator, add powder from the appropriate capsule, shake and watch for the color to develop. Note your test results and compare to the handy charts to adjust your soil for optimum growth. Complete step-by-step instructions and charts guide you through the testing process and recommendations for adjusting the pH level of your soil.
    Why should I test my soil?
    Understanding the health of your soil will help you determine the most economical and efficient method for making improvements to your soil. Nitrogen, Phosphorus and Potassium (N, P & K) are the essential nutritional building blocks for all plants. In order to optimize your plants health there needs to be a balance of these minerals in your soil.
    When should I test?
    While periodic testing throughout the growing season is recommended, it is crucial to test your soil before planting in Spring and when preparing beds in Fall.
    I have my test results. What should I add to my soil?
    See our recommended natural products chart to adjust your soil. Click the Instructions Tab above.

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