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Refills for Garden Jar, Eco Planter, Eco Seed Starter. Can be used with Garden Sacks too.
The water-soluble fertilizer is comprised primarily of three macronutrients — Nitrogen, Phosphorus and Potassium (the essential formula for plant growth), plus a variety of micronutrients such as Calcium, Iron, Potash. These are all naturally occurring mineral deposits that are refined to their pure state.