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When to Fertilize New Sod

When to Fertilize New Sod

If you’re considering laying new sod or have just finished an installation project, you may be wondering when to fertilize it. Providing nutrients to the newly laid sod can help it establish successfully. The best approach is to fertilize the new sod shortly after installation, using a balanced fertilizer formula, like the Lawnifi New Lawn Starter Box, that is higher in phosphorus and potassium to promote root growth.

Why fertilizing is important for new sod

All plants, including grass and crops, require nutrients for healthy growth. Newly laid sod and established grass have different needs, with new sod benefiting from phosphorus-rich fertilizers to encourage root development and soil connection. Potassium is key for drought resistance, cold tolerance, and disease prevention, while carbon improves soil health, fostering better grass growth.

Lawnifi’s carbon-based fertilizers enhance soil quality. Nitrogen and iron keep grass green, but new lawns need more than these to establish well in their new environment.

The Best Fertilizer for New Sod

Avoid using high-nitrogen fertilizers for new sod to promote root growth in new soil. Phosphorus and potassium aid in easier root establishment. An even N-P-K ratio, like 15-15-15 or 8-8-8, is preferable. L

awnifi’s New Lawn Starter Box, priced around $50, includes three liquid fertilizers suitable for this, with two bottles at an 8-8-8 ratio and one at 16-0-4, covering 5,000 sq. ft. each and designed for easy garden hose attachment. The box also contains nitrogen and iron, particularly in the “Maintain” bottle.

What’s even cooler is that all Lawnifi fertilizer products are powered by Catalyst TechnologyTM, which nano-sizes the nutrients so that the grass blades and roots don’t have to spend a lot of time breaking the nutrients down in the soil in order to absorb them.

You won’t be applying all three bottles at once—there’s a schedule to follow. In fact, this fertilizer will have your new sod’s nutrient needs set for the next few weeks. Check out the schedule below:

First Month of Fertilization

Week 1

Water your new sod thoroughly (to keep the soil moist about 3–4 inches deep) in the mornings and late afternoons for the first week. Spray Lawnifi Grow 1–2 times during this first week of installation.

Week 2

Watch for lawn disease signs, such as irregular circular patterns or rotted areas, which could indicate overwatering. If noticed, use a systemic fungicide like Heritage G.

Apply the second bottle of Lawnifi Grow from the New Lawn Starter Box to enhance root growth and nutrient absorption.

Week 3

During week 3, use the final Lawnifi Maintain bottle to boost growth, color and soil health.

Then continue with the Lawnifi Complete Seasonal program for ongoing lawn care.

What are my next steps?

After the first 30 days, you can switch from an establishment to a regular fertilizer regimen, including following the New Lawn Starter Box plan. Your next steps depend on the season; use the Spring or Fall Fertilizer Box based on when you laid your sod. Each seasonal box caters to your lawn’s specific needs due to changing temperatures and soil conditions. Lawnifi offers a subscription for all three seasonal boxes with annual or monthly payment options, which is more cost-effective than buying each box separately.

For those preferring granular fertilizer, Lawnifi Foundation is an all-season alternative.

Cta Establishing A New Lawn New Lawn Starter Box
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