16" x 7' deep Provides best performance for waterlilies and small lotus. It is the correct width for rhizomes to produce multiple flowers. We recommend that you use loam soil to grow your water garden plants. Mix 1/2 part top soil and 1/2 part clay plus 1 cup of play sand. Calcined clay may be purchased at SiteOne Landscape Stores under the name "Turface". It is often sold as a baseball field amendment. You can also purchase an oil absorb product from auto parts stores, it is used to clean up oil spills in the garage. Either one of these products will serve as "part clay" in you loam soil mix. Also, 100% clay kitty litter works, just make sure there are no perfumes, dyes or clumping materials in the kitty litter.
We always recommend that you fertilize your aquatic plants with Landon's granular fertilizer or Waterlily World Pond Tabs + Humates. These products get your plants off to a terrific start! These products will also keep your plants growing and blooming all season long!