What Should You Put Down Before Laying Sod?
Laying sod can transform a bare patch of dirt into a lush, green lawn almost overnight—but the real success comes from what you do before the sod goes down. If you skip the prep work, you may end up with patchy grass, poor root development, or drainage issues. This guide will walk you through everything you need to put down before installing sod to ensure long-term success.
Understanding What Should You Put Down Before Laying Sod
If you’re wondering what should you put down before laying sod, the answer starts with a clean, level foundation. Preparing your soil properly is critical for strong root growth, water retention, and overall turf health. Whether you’re doing it yourself or hiring a pro, knowing the right steps helps ensure your investment pays off.
To dive deeper into how the professionals handle the process, check out our Sod Installation guide for expert tips and services.
Step 1: Clear the Area
Start by removing any existing grass, weeds, debris, or large rocks. You want the area to be completely bare so the new sod can make direct contact with the soil underneath. Use a sod cutter for large areas or a shovel for smaller sections. This step prevents old plant material from interfering with root establishment.
Pro Tip: Avoid using chemical herbicides right before installation, as residue can damage new sod.
Step 2: Test and Amend Your Soil
Before laying sod, it’s important to understand your soil’s condition. A simple soil test (available at garden centers or through local extension services) will tell you the pH level and nutrient content.
Ideal pH: Between 6.0 and 7.0
What to add:
-
Lime if the soil is too acidic
-
Sulfur if it’s too alkaline
-
Compost or topsoil to improve texture and organic content
Adding these amendments and mixing them in with a rototiller helps create the best base for root development.
Step 3: Grade and Level the Surface
Proper grading prevents water from pooling and causing root rot or erosion. Aim for a gentle slope away from structures like your home or patio.
Key Tips:
-
Fill low spots and remove high points
-
Maintain a slight slope (1–2%)
-
Compact lightly with a roller
Once the soil is graded, rake the area smooth and remove any leftover debris.
Step 4: Water the Soil Lightly
Right before sod installation, water the prepared soil lightly to help the roots make good contact. It shouldn’t be soggy—just damp. This promotes better root-to-soil bonding when the sod is laid down.
For sod prep, the team at Lakota Design Group can assess and prepare your yard with care, from grading to soil amendment, making sure your sod thrives.
Step 5: Install a Starter Fertilizer
This often-overlooked step can give your sod a strong start. A balanced starter fertilizer high in phosphorus supports early root growth and improves nutrient uptake.
Choose a fertilizer labeled:
-
10-20-10 or 15-15-15
-
Apply evenly using a broadcast spreader
-
Follow product instructions for coverage and safety
Don’t overdo it—excessive fertilizer can burn the new roots and damage your lawn before it has a chance to grow.
Step 6: Moisten Again Before Laying Sod
After the starter fertilizer is applied, give the soil another light watering. It should be damp, not muddy. Moisture helps the sod bond to the soil more effectively once installed.
Remember, the sod’s roots begin growing downward almost immediately. If the soil is too dry or too wet, it can stunt root growth.
Step 7: Time Your Installation
Timing is everything. The best time to lay sod is during the cooler parts of the day or in early spring or fall. Avoid installing during extreme heat, as the grass can dry out too quickly.
If you’re doing it yourself:
-
Lay sod the same day it’s delivered
-
Stagger the seams like bricks
-
Use a lawn roller to press it firmly into place
Final Tips for Success
Now that you know what should you put down before laying sod, don’t forget to:
-
Keep the sod well-watered for the first two weeks
-
Avoid heavy foot traffic during establishment
-
Mow only when the grass is about 3 inches tall
-
Water deeply but less frequently after the first month
This prep routine ensures that your lawn grows evenly, resists disease, and looks amazing for years to come.
Conclusion: Make Sod Last with Proper Prep
The secret to a thriving lawn isn’t just great sod—it’s what’s underneath it. From clearing and leveling to soil testing and fertilizing, every step builds a solid foundation. So, the next time you ask yourself what should you put down before laying sod, you’ll know exactly what to do to create a lawn that lasts.