BioThrive Grow provides plants with essential nutrients for roots, stems, and foliage. Concieved from plant and mineral extracts, the pure and natural vegan formulation encourages beneficial microbial activity in the root zone. BioThrive Grow is ideal for all types of plants and can be used with garden soils as well as potting mixes. General Organics provides gardeners with a complete line of superior organic plant foods and supplements that combine the time-tested materials of traditional gardening with the ecological and efficient methods of the future. Each product in the "GO" line enables you to enrich your garden, your life, and the planet. General Organics foundation rests upon a deep commitment to provide simple, sustainable and innovative products with unsurpassed quality. Note: This product works best with soils that contain calcium. When using depleted soil, coir, perlite, rock wool or any sterile media, for best results, we recommend that you supplement this product with CaMag+.