How much does it cost to seed a lawn?

Lawn seeding is the process of adding new grass to your lawn through seeds. This is in contrast to adding grass to your lawn through sod or other forms of fully mature grass. Seeding your lawn can help keep it healthy, improving its looks and coverage.

Seed can be applied to thin, sparse areas of your lawn to help fill it in, or you can use seed to start a brand new lawn, such as in areas of new construction or recently cleared areas. There are several different ways that you can seed your lawn, as well as different types of seed, which can impact the final cost of adding seed to your lawn. The size of your lawn and what type of prep work may need to be done to get it ready for the seed can also have an affect on the final cost. Most homeowners spend between $250 and $850 on lawn seeding a 5,000 sq.ft lawn, depending on whether they are seeding an existing lawn or starting a new one.

Seeding vs sod

Growing your lawn from seed is time consuming, and dependant on several factors such as weather, sun, and water. This means that if you are starting a new lawn from a cleared area, it may be several weeks to months before you get some results, and about two years before you get a fully filled in and lush lawn. Therefore some homeowners who wish to speed up the process may turn to sod to help their lawn get results faster.

Sodding your lawn is the process of transplanted already developed grass and roots onto your property. The grass is already growing, and the roots only need to be able to reach the soil below to take hold and form a healthy lawn. This gives you instant results from a visibility standpoint, although sod can still be impacted by pressure, sun, and moisture.

The biggest advantage to using seed over sod is the cost. Seeding your lawn costs approximately $0.05 a sq.ft, while sod will cost you $0.40 to $0.70 a sq.ft. Assuming a 5,000 sq.ft. lawn, this is significant cost difference, with seed costing only $250 and sod installation running around $2,000 to $3,500.

Types

Homeowners turn to seeding for different reasons. In some cases, you may have an established lawn that has thin areas, areas of grass that has died, or areas that you want to improve the quality of. Seeding this type of lawn is known as renovation, and costs around $80 to $300. Typically, the seeding in a renovation involves spreading the seed, mowing the existing grass, occasionally cutting out areas of dead sod, as well as raking, aerating, and fertilizing the new seed. Renovation of your lawn through seeding can take two to eight hours depending on the size of your lawn, and the amount of seeding that needs to be done. Keep in mind that if you have a lot of dead sod to be cut and removed, this will add an additional $2 per sq.ft. to your total costs.

If your lawn is in truly bad condition, and you need to start from scratch, or you’re adding seed to a newly cleared area such as new construction or after the removal of trees, this can be significantly more work. Known as a lawn replacement, this method typically costs between $400 and $800, and usually involves spreading the seed and raking. If you have a current lawn that is dead and that requires the removal of the old grass before the application of new seed, you can expect to pay significantly more - up to $6,500 for the removal of the old grass and the installation of the new seed for a 5,000 sq.ft. lawn.

Keep in mind that the size of your lawn will have a big impact on the total costs of seeding. Smaller lawns or seeding of small areas of a lawn can cost a lot less than seeding a larger area.

Soil preparation

Prior to adding new seed to your lawn, your soil may need to be prepared to accept the new seed. What type of work you will need to have done will be largely dependant on the condition of the area.

For areas with existing grass, the area may require mowing, as well as removal of old or dead grass. For all areas, the soil itself may require fertilizer or herbicides to help protect the new seed and help it grow. The soil may also need to be aerated or turned to help improve quality or it may need to be raked. These types of preparation are usually included in the cost of the seed application, but may increase the cost of the total job by up to $2 per sq. ft for areas with particularly poor soil quality or in areas with that need a lot of old grass or weeds removed first.

Types of seed

There are hundreds of different types of grass seed available, all with distinct characteristics and costs. If you are seeding an area of an existing lawn, you may need to have your existing grass tested or identified to determine its type before applying new seed to get the best match.

If you are seeding a new lawn, be sure to research what types of seeds grow best in your climate and in your soil. Having your soil tested can also tell you what type of grass may grow best there. Matching the type of seed you use to your area and soil will help ensure that your new lawn grows in healthy and withstands your climate.

Some of the more common types of seed include:

Labor

The amount of labor that it will take to seed your lawn, and the total costs will depend in large part on several factors including the total size of the area being seeded, the condition of the lawn and soil, and the type and amount of seed you’re spreading.

It’s common for labor to include:

• Cutting and removal of old, dead grass
• Raking and amending of soil
• Spreading the seed
• Raking the seed
• Mowing the existing grass around the seeded area
• Fertilizing the lawn
• Watering the lawn

These tasks typically cost between $150 to $700 depending on the amount of work and the size of the lawn.

Enhancement and improvement costs

Reseeding

If your lawn is in relatively good shape, but has a few bare spots with nothing growing there, these can be reseeded at a cost of around $80 to $150.

Fertilizer

Fertilizer may be included in the seeding process if your grass requires it to grow, expect to pay another $50 to $80 to fertilize.

Remodeling Terms Cheat Sheet

¹ Fescue: A coarse, resilient grass that stays green all year. Fescue is considered a cool-season grass, so it does well in cooler temperatures but can turn brown quickly in the heat. This means that it must be watered frequently in the summer

² Sprinkler system: Set of equipment used to irrigate lawns