Old Fertilizer Bags: Safety and Shelf Life Concerns

Identify the Product First

“Scotts Turf Builder Plus 4” doesn’t appear in current EPA registrations. It may be a discontinued, Canadian-market, or professional-grade product. Without the exact label, it’s impossible to know the ingredients.

Potential Risks

• Old “weed-and-feed” products often contained herbicides (like 2,4-D) that are now restricted or banned.
• Chemical fertilizers degrade over time; clumping and moisture absorption can create hot spots that burn grass.
• Applying unknown chemicals risks soil contamination, harm to pets, and groundwater pollution.

Safer Alternatives

Switch to an organic program: feed soil microbes with sugar, compost tea, alfalfa meal, and lava sand. These build long-term fertility without the hazards of synthetic chemicals. If you must dispose of the bags, contact your local hazardous-waste facility.

Bottom Line

When in doubt, don’t apply. The cost of a soil test and organic amendments is far less than the risk of damaging your lawn, health, or environment.