Introducing Under Sod 4-2-5: Blended Beneath New Sod

Under Sod 4-2-5 is blended into the top 4 to 6 inches of soil before the sod goes down. It is not a starter you sprinkle on top.

Application rate: one 25-pound bag per pallet of sod (500 square feet), which is 50 pounds per 1,000 square feet, blended into the top 4 to 6 inches. Follow the soil test and local rules; this rate supplies 1.0 pound of phosphate (P2O5) per 1,000 square feet, so count it toward the report rather than adding it on top of a separate phosphorus allowance.

For years, as CT Sod grew and delivered sod across the Northeast, our customers kept asking the same question: "What fertilizer do I use for new sod?" There was never a clean answer. Homeowners didn't know what to buy, the pros had their own habits, and the few who found something often had no idea how much to apply — or whether it would burn the sod they'd just paid for.

Now there is an answer. Introducing Under Sod 4-2-5 — the incorporated soil fertilizer made to go beneath new sod.

Why it exists

Most bags on the garden-center shelf are labeled "for seed and sod" — but seed and sod are not the same problem. Seed starts from bare ground and has to build roots from scratch. Sod arrives with a mature root system already grown on the farm; its job in the first few weeks is to *bridge* those roots down into your soil. That contact zone — the few inches of earth directly under the turf — is exactly where most starter products were never designed to work. Under Sod 4-2-5 is built for it.

What it is

Under Sod 4-2-5 is an incorporated soil fertilizer: soil-test-rate phosphorus, blended 4 to 6 inches deep, with nothing on the surface, plus potassium-forward nutrition plus the living soil biology young roots actually use. The biology is the product; the nutrients are just the carrier. Full label details and specs are on the Under Sod 4-2-5 product page.

Under Sod 4-2-5 goes beneath new sod at installation — one 25-pound bag per pallet of sod (500 square feet), which is 50 pounds per 1,000 square feet, blended into the top 4 to 6 inches. There is no burn risk when used as directed.

Dead-simple to apply

No measuring, no math: one 25-lb bag covers a 500 sq ft pallet of sod. Ordering four pallets? Use four bags. That is the whole calculation.

Who it is for

Under Sod 4-2-5 is for anyone laying fresh sod:

• Homeowners putting in a new lawn — join the notify list.
• Landscapers & installers who want one product they can confidently recommend on every job — become a partner.
• Sod farms, garden centers & distributors — carry Under Sod 4-2-5.

When can you get it?