The phrase refers to a specific type of soil blend, presumably of high quality and favored by users, that is available for purchase at a major home improvement retailer. It suggests a product that caters to gardening needs, specifically for planting in containers. The designation “best” implies superior performance relative to other similar products sold at the same location.
The availability of such a product at a large chain like Home Depot is important because it offers accessibility to a potentially wider customer base. It indicates that consumers seeking effective soil solutions for their potted plants can find this option readily, saving time and effort in their gardening endeavors. Historically, the presence of specialized gardening supplies in general retail outlets represents the increasing popularity and mainstreaming of gardening as a hobby and a practical activity.