Dahlias need well draining soil; clay and sandy loam, leaf compost, and organic material is best suited for dahlias. If you are planting in deck containers or pots, use garden soil, or a mixture of 2 parts garden soil and 1 part Dahlia Mix. Dahlias planted in 100% potting soil will dry out too often, causing poor bud formation.
Our Dahlia Mix is a proprietary blend of Sandy Loam, Fine Dairy Compost, and Pumice, created with input from our friends at
Swan Island Dahlias. It is designed to provide your dahlias with the soil they’ll love.