Ready-to-use pH balanced formula Promotes flowering and root growth Helps retain moisture and improve aeration Made from: sphagnum peat, organic compost, sand, aged bark, biochar, lime, fish bone meal and kelp meal Mount Desert Island Blend is an organic cactus, succulent, tropical palm and citrus plant soil mix. It is made from: sphagnum peat, organic compost, sand, aged bark, biochar, lime, fish bone meal and kelp meal. This ready-to-use formula offers both excellent drainage and sufficient water retention. It is pH balanced and offers organic nutrients that promote healthy root and plant growth.