GEO Zen Blend is our most versatile blend and adaptable for indoor, outdoor, and greenhouse growing environments. GEO Zen Blend is a light, fast-draining mix that is great for mature plants but also safe for starts and cuttings and is optimal for gardeners who prefer to tailor a fertilizing regimen. A feeding program is recommended within one to two weeks of planting in this soil. Good Earth Organics also offers a choice of organic dry amendments, specially formulated to work best with GEO soils.