Heliopsis- Tuscan Sun sioux lynn pink only reaching a mature height

only reaching a mature height of 3-4'

How do I use 3/4" River Rock with drain tile/ drainage areas

green grass

and unlike wood timbers

Measures: 8" x 4

Heliopsis- Tuscan Sun sioux lynn pink only reaching a mature heightThis compact version of heliopsis shows off its golden yellow flowers on sturdy plants. Staking is not needed. Heat tolerant, drought tolerant, and easy to care for. Use in the middle of the border and in containers. While deadheading may encourage additional blooming, it isn't strictly necessary for a long bloom season. An easy flowering false sunflower with a shorter plant size, outstanding garden performance and disease resistance. Height: 24 36"