: Blends the polymer with an 8–9 month timed-release fertilizer.

You can buy water-storing polymers from a variety of retailers including Walmart, Target, and Ace Hardware . For bulk or specialty versions like Soil Moist Plus (which includes fertilizer), professional suppliers such as Grower's Solution and A.M. Leonard offer larger pails and specialized formulas. Product Variants & Where to Buy

: Lowe's offers a 10 lb pail for ~$68.33; also at Gardener's Edge for ~$90.86.

: Large 8 lb or 50 lb options for landscaping projects.