Viewed by many as the gold standard for hydroponic growing, Masterblend’s 4-18-38 tomato formula is well-suited for both soil based and hydroponic growing. Ideal for tomatoes, peppers, leafy greens and more! It is 100% water soluble and when used with magnesium sulfate and calcium nitrate, creates a super charged solution that contains all the macro and micro nutrients your plants need to thrive.
