$15 shipping fee you can add $15 Priority Box Shipping to cart and we will ship it to you. Or we can add the charge when you order over the phone. A unique 3-in-1 combination of potassium, magnesium and sulfur, langbeinite is a naturally occurring source of these three vital plant nutrients. Potassium is essential for high-quality fruit, magnesium is required for the synthesis of chlorophyll and sulfur is needed for enzyme activation. Contains 22% K2O, 11% Mg and 22% S.
Down To Earth™ Langbeinite (Sul-Po-Mag) 0 - 0 - 22 5lbs