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Whether you're producing greenhouse-quality flowers
Mix thoroughly
peat-based growing medium
Layers onto established base nutrient programs such as FloraSeries
Improving drainage and air space in planters
Luster Leaf® Rapitest® Soil Test Kit (40 Tests) Certified OMRI Organic Whether you're producing greenhouse-quality flowersLuster Leaf Rapitest Soil Test Kit Kit includes: 4 color comparators, 40 test capsules, 10 each for pH, N, P and K, complete instructions for adjusting soil pH, fertilization guidelines and pH preferences list for over 450 plants for the home, yard and garden. Plants need food (nutrients) for healthy growth. Nitrogen, Phosphorus and Potash (N, P and K for short), play a vital role in plant growth. This kit enables you to test all four levels of pH,
