4 Fast-Growing Grass Seeds - Backyard Boss
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4 Fast-Growing Grass Seeds

A lush lawn is a great addition a home but requires effort and time to maintain. One way to ensure it is healthy is by choosing the right type of grass seed. Fast-growing grass seeds are an excellent option if you want to see your lawn grow quickly and evenly.

However, with so many options available, choosing the best one can be time-consuming. Discover the fastest-growing grass seeds with their features and benefits to narrow your search. 

How Long Does Grass Take to Grow?

spreading grass seed in spring by hand for the perfect lawn.
Image credits: Mabeline72 via Shutterstock

Grass seed germination can take from three to 28 days. Its growth varies depending on the type of grass, climate, and soil conditions.

Cool-season and warm-season grasses are two categories of grasses that grow best in different temperature conditions. Cool-season grasses grow actively in cooler temperatures and have their peak growth in the spring and fall seasons, while warm-season grasses grow during the hot summer and become dormant during the colder seasons. 

To know how much time your type of grass will need to grow, take the following factors into account:

  • Temperature: If you live in a cooler climate, grass will grow best when the temperature is between 60 to 75 degrees Fahrenheit. If you live in a warmer one, optimal air temperatures are 80 to 95 degrees Fahrenheit.
  • Sunlight: Most species require at least six to eight hours to thrive. If the grass does not get enough sunlight, it will grow slowly and become thin and patchy.
  • Soil conditions: The soil should be well-draining, aerated, and have a pH of 6.0 to 7.0. Compacted soil lacking nutrients or improper pH levels will affect the growth rate.

The Fastest-Growing Grass Seeds

Though grass doesn’t generally take a long time to germinate, some grow faster than others. Learn about four of the fastest-growing grass seeds to get your lawn looking its best in a flash.

Bermuda Grass

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Bermuda grass is a warm-season grass and thrives best in temperatures between 95 to 100 degrees Fahrenheit. It is popular due to its fast growth rate and ability to tolerate high heat and drought conditions. Its deep root system can reach moisture and nutrients, making it perfect for areas with poor soil.

It needs only from five to 28 days to germinate. Bermuda grass can recover quickly from damage, making it an excellent choice for high-traffic areas. To grow Bermuda grass successfully, it needs full sunlight and well-draining soil. Be careful of excessive nitrogen fertilization and frequent irrigation. Nitrogen overuse can reduce seed production, and excessive watering leads to shallow root systems and soil compaction.

Pro Tip: Once your grass is growing, beware of mowing too closely! Close mowing can weaken Bermuda grass.

Kentucky Bluegrass

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Kentucky bluegrass is a cool-season grass. It is recognized for its lush, dense growth and vibrant blue-green color. One of its benefits is its durability and tolerance to high traffic. It is also self-repairing, making it excellent for lawns and athletic fields that see a lot of use.

It is one of the fastest-growing grasses, taking 10 days to reach maturity in the spring to 22 in the summer and fall. This grass prefers cooler temperatures of 60 to 75 degrees Fahrenheit and does well in regions with cold winters and mild summers. It requires full sun for optimum growth and prefers well-draining soil.

Annual Ryegrass

Lawn in the garden
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Annual ryegrass is a popular cool-season grass used as a cover crop or winter overseed. This grass can germinate in five to 10 days and reach maturity in only 45 days. It makes it a quick and effective way to establish a lawn.

Annual ryegrass germinates in temperatures of 68 to 86 degrees Fahrenheit and is best suited for regions with moderate temperatures. It prefers full sun but can tolerate some shade. It requires well-draining soil rich in nutrients for optimum growth. Water it deeply and infrequently, allowing the soil to dry slightly between watering. Annual ryegrass is very tolerant of high traffic.


A field of well-maintained grass
Image credits: Jorien Loman via Unsplash

Bentgrasses are another popular option for those looking for fast-growing grass seeds. They are also very resilient and withstand heavy foot traffic and frequent mowing. Bentgrasses require at least six hours of sunlight daily to grow, but they can also tolerate partial shade.

Bentgrass is quick to establish. It takes about two weeks for Bentgrass seeds to germinate, and they reach maturity within three to five weeks. They require consistent moisture for optimal growth and prefer cooler air temperatures between 60 to 75 degrees Fahrenheit.

The Need for Speed When Growing Grass Seeds

Having a healthy and lush lawn is a dream for many homeowners and gardeners. Choosing the right type of grass seed is crucial to achieving this goal. The fastest-growing grass seeds included can fit different growing conditions and preferences.

Whether you’re looking for quick results or long-term durability, there’s a grass seed for you. Consider the climate, soil type, sunlight, and water requirements before deciding. By taking the time to research and select the right grass seed, you can enjoy a beautiful lawn in no time.