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Cobalt™ St. Augustine Grass Plugs

Plug trays only ship on Mondays and Tuesdays.

Grass plugs are the perfect solution for filling in bare or damaged spots in your yard or starting a new lawn. Known for its striking dark green color, Cobalt St. Augustine is perfect for creating a vibrant and healthy lawn. It stands out with its exceptional drought and shade tolerance and is highly resistant to common lawn diseases, ensuring a robust and visually appealing turf.


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Grass plugs are individual turf plants grown in trays. They are small clumps of grass that can be used to repair damaged areas of lawns, fill in patches of bare soil, trial a new grass type, or even start a new lawn. Grass plugs are relatively inexpensive and easy to plant, and they grow quickly enough that you won’t have to wait long before they look good in your lawn. Here are some benefits of using grass plugs:

  • Grass plugs establish faster and require less water than seed.
  • Plugs are a more affordable option compared to sod, making them a cost-effective choice.
  • Cobalt St. Augustine Grass Plugs are easy to establish and easy to maintain.
  • They provide a natural solution for repairing a damaged lawn, particularly in small areas.
  • You can use plugs for fun and creative DIY projects.
  • They are effective for repairing or filling in damaged spots.
  • You can test different grass varieties before committing to a full sod order.

Cobalt St. Augustine is a resilient and adaptable warm season grass, thriving in areas with ample sunlight and showing impressive tolerance to shade and drought. Once fully grown, it forms a dense, attractive turf, ideal for residential lawns with high-foot-traffic areas. This grass variety adapts well to different soil types and climates, and its striking dark green color enhances the beauty of any lawn. Notable for its disease resistance and cold tolerance, Cobalt St. Augustine is a versatile choice for various climate conditions. Cobalt St. Augustine Grass Plugs have several features that make them an excellent choice for lawns. These features include:

  • Drought resistant
  • Disease tolerant
  • Shade tolerant
  • Winter hardy
  • Excellent visual quality
  • Dark green color


Color: Dark Green
Texture: Soft
Spring Green Up: Very Good


Wear/Injury Recovery: Good
Insect Resistance: Moderate
Disease Resistance: Very Good
Weed Resistance: Very Good


Heat Tolerance: Very Good
Shade Tolerance: Excellent
Drought Tolerance: Excellent
Salt Tolerance: Very Good
Wear Tolerance: Good


Mow Height: 2.5-3.5 inches
Maintenance: Low
Growth: Rapid Horizontal Growth

Our 72-count plug trays can cover up to 72 square feet when spaced 6–18 inches apart on center. For quicker ground cover, plant each plug closer together. Each plug is 1.25 inches long x 1.25 inches wide x 2 inches tall.”

To install grass plugs, follow these steps:

  1. Collect a soil sample and make any required soil amendments to create a conducive environment for plugs to grow.
  2. Prepare the soil by removing any weeds or debris. Mow existing lawn close to the ground. Rake the soil smooth and level.
  3. Water the soil thoroughly.
  4. Dig up or use an auger bit to drill holes for the plugs, spacing each hole 6–18 inches apart.
  5. Fertilize the holes before planting the grass plugs with a fertilizer that has a lot of phosphorus like Lawnifi Grow, the first bottle of the New Lawn Starter Box. Use Soil Moist Granules to reduce plant stress and watering.
  6. Press the plugs into the soil firmly, and use additional soil to fill the holes, ensuring the plugs are securely positioned and upright in the ground. The grass blades should be level with the ground.
  7. Keep the soil moist 6–8 inches deep every day until the plugs are established for the first 10–20 days after installation. This may require 2–4 waterings per day. Once new runners start to appear, decrease watering to twice a week.
  8. Ensure firm root establishment before mowing; gently tug a section to check. Mow only when the grass is dry to avoid soil compression and root issues. Set your mower at the highest level initially to prevent a vacuum effect; lower it gradually for future mowings.

Our high-quality grass plugs are shipped on Tuesdays and Wednesdays to guarantee their arrival before the weekend. This ensures that your grass plugs typically reach most locations in the US by Saturday.

For cost-effective shipping, remember that 3 plugs fit in a single box. Consider ordering 3 at a time if you anticipate needing more to cover your area. Save on shipping and enjoy your lush, green lawn!

It’s important to note that your plugs are living plants. After receiving the package, unpack the plug trays from the box right away. Some slight discoloration from lack of oxygen and sunlight during shipping may occur. Place the trays in a single layer and water the plugs immediately. We recommend planting your grass plugs as soon as possible but don’t worry if you can’t get to them right away, keep them moist until you are ready to plant them. For planting details click here.

What are grass plugs?
Grass plugs are individual plants that are grown in trays in controlled conditions. They are 1–2 inch diameter ready-to-plant turf. Over time, the grass plugs expand and spread into a fully formed lawn.

How do I use grass plugs?
Use plugs to fill in bare spots or replace a full yard. They are also great for trialing a new grass to see how well a certain type of grass performs in your yard. Grass plugs offer a cost-effective alternative to sod sections and are more straightforward to establish compared to seeding. For additional planting details click here.

When should I use grass plugs vs. sod and seed?
Plugs offer a hybrid solution to sod or seed. Use plugs for a more affordable solution to sod with more predictable growth. Sod provides an instantly lush lawn appearance from day 1, but comes at a higher cost. Seed is the most budget-friendly option but requires more time to grow and may result in uneven growth. Click here for more information.

When should I plant grass plugs?
The easiest time to plant plugs is in the spring or fall. Plugs can be planted ANYTIME but peak summer and dormant winter offer their own challenges as it relates to water management and plug care. Learn more here.

How much should I water new grass plugs?
Proper watering is critical. Water plugs immediately after planting for proper establishment. Give them a good soaking, but do not overwater. If the soil is soggy or the grass blades start to turn yellow, reduce watering. For the first 2 weeks after planting, water the grass plugs 2–4 times per day to keep the soil moist. Water should penetrate up to 6–8 inches of soil. After the first 2 weeks, gradually reduce the frequency of watering. Water the grass plugs every other day or less. Check the soil moisture regularly to ensure that it remains moist without becoming waterlogged or dried out.

Why are my grass plugs brown or yellow?
We deliver your plugs from the farm when it’s at its healthiest, vibrant green stage. During shipping, there might be some temporary yellowing due to reduced oxygen and water. Don’t worry, get them planted as soon as possible and take care of them like normal. They’ll bounce back to that beautiful green color usually within two weeks.

How long does it take for grass plugs to spread?
Plug spread depends on several factors, including the type of grass, the spacing of the plugs and the growing conditions. It typically takes around 6–12 months for them to fully establish after planting. But we have seen smaller areas fill in in as little as 2–4 weeks.

Customer Reviews

Based on 6 reviews
T.S. (San Antonio, TX)
Review update

Updating my previous review:
It’s now January 19,2024. My plugs have survived the drought and extreme heat of 2023. Now after days of below freezing temps as low as 16 degrees I’m checking on my sample plug areas of my lawn. It’s nothing short of dramatic!! The following photos are from the most exposed part of my lawn. Look at the difference in the grass blades of the Cobalt plug grass blades vs. my existing St Augustine. The Cobalt grass blades are still green and full vs. the other St. Augustine that shows considerable freeze damage. Zoom in on the center of the photos and then pan around the edges and you will realize the dramatic differances. Congratulations to Texas A&M and Sod Solutions for bringing this new hybrid variety of St Augustine to the market!

B.D. (Houston, TX)
Great grass plugs

I'm about to place my fifth order for plugs, after parts of my yard were heavily damaged by fungus and this summer's drought. Of the almost three hundred plugs received, only two plugs were not viable. I've had a 100% success rate in my sunny front and back yards, with the plugs thriving and spreading. I've had about a 30% success rate in the heavily shaded yard between our house and a neighbor's (I think because I use too much fertilizer, as replacement plugs are doing much better).

Matthew M. (Dallas, TX)
Slightly smaller than advertised

Plugs are not 4" flats as alluded to in photos on the website. Single tray of 1in³ plugs. The roots seem strong however, so I don't doubt their ability to root, but 1in³ plugs don't transfer well from tray to soil.

Thomas S. (San Antonio, TX)
Too early to tell but looks promising

Plugs arrived quickly in good condition. Since we are in the middle of a drought I divided my sheet of plugs into only four sections to create a larger area of sod, planting them in four quadrants of my yard as a test. They are already establishing and starting to send out runners. I will watch the test areas thru the fall, winter and early spring. If the Colbalt preforms as promised I plan to plug more of my yard in the spring Keeping my fingers crossed. It already appears to be taking on a richer green color and seems to be more compact and more dense than St. Augustine variety that I currently have. It does seem to be more corse to the touch. I’ll back off of the watering in a few weeks and see how it does. Many of my neighbors are watching the progress and hoping for good results.

Micah O. (Montgomery, TX)
Cobalt St. Augustine

Awesome packing! It showed up with very little yellowing and looked like artificial turf it was so green. Looking forward to seeing it take off and fill in my dead spots where I planted.

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