Sunday Help Center

How to use leftover and unused Sunday liquid lawn fertilizer

Each spring, customers ask "Can I use leftover Sunday fertilizer pouches?"

The answer is yes. Unused liquid fertilizer stays effective for up to two years from the date it shipped. If a pouch froze over winter, let it thaw completely and shake it well before using. It's still good.

How to work leftover pouches into this season:

Apply your current plan pouches first. Those are matched to what your lawn needs right now.
Wait 7 to 10 days. This applies between any two liquid fertilizer applications.
Apply a leftover pouch. Use it as a bonus application between scheduled feedings.
Repeat throughout the season, always holding that 7 to 10 day gap, as long as grass is actively growing and not stressed.

The best time to add extra feedings depends on your grass type. Cool-season grasses benefit most in spring and fall. Warm-season grasses do best from late spring through mid-summer.

For storage tips, full timing guidance, and step-by-step application instructions, see How to Use Leftover Sunday Pouches.

Important note: This answer covers liquid fertilizer pouches only. Granular products, weed control, and soil amendments follow different rules. Reach out to our team for more guidance.

Having trouble keeping up? Skip an upcoming shipment.