What is the sister brand of Miracle-Gro?

Could you tell me, what exactly is the name of the brand that is related to or considered the sister brand of Miracle-Gro? I'm interested in understanding if there's another well-known gardening or plant care product line that falls under the same parent company or has a similar market position. I'm curious about the connection between these two brands and how they complement each other in the gardening industry.