How to Plant Ground Cover Between Flagstone Like a Pro

Margaret Jul 01, 2026

Transforming the spaces between flagstone into lush, vibrant areas is an achievable goal with the right ground cover. Not only does it enhance the aesthetic appeal of your landscape, but it also helps prevent weed growth and stabilizes the soil. Let's delve into the process of planting ground cover between flagstone, ensuring a beautiful and functional outcome.

Excellent Ground Cover Plants for Garden Pathways
Excellent Ground Cover Plants for Garden Pathways

Before we begin, it's crucial to understand that choosing the right ground cover is key. Opt for low-growing, spreading plants that form a dense mat, such as creeping thyme, Irish moss, or sedum. These plants not only thrive in the partial shade cast by flagstone but also create a soft, inviting texture.

Best Ground Cover That Loves To Be Walked On
Best Ground Cover That Loves To Be Walked On

Preparing the Site

Before planting, it's essential to prepare the site to ensure your ground cover thrives. Start by removing any existing weeds or debris from between the flagstones.

How to Plant Between Flagstones — Hunker
How to Plant Between Flagstones — Hunker

Next, rake the area to loosen the soil. This step is crucial as it promotes better root growth and water penetration. If your soil is compacted or has poor drainage, consider incorporating some organic matter, like compost, to improve its structure.

Measuring and Planning

Growing Ground Cover Between Stones and Bricks?
Growing Ground Cover Between Stones and Bricks?

Accurate measurement is key to ensuring you have enough plants to cover the area. Measure the length and width of the space between your flagstones. Remember to account for any curves or irregular shapes.

Once you have your measurements, calculate the square footage. This will help you determine how many plants you need. A general rule of thumb is to plant ground cover at a rate of about 12 to 16 plants per square foot. However, this can vary depending on the specific plant and its growth rate.

Choosing the Right Plants

Зеленые дорожки
Зеленые дорожки

Selecting the right plants is vital for a successful ground cover installation. As mentioned earlier, low-growing, spreading plants work best between flagstones. Some popular choices include:

  • Creeping thyme (Thymus serpyllum) - A fragrant, low-growing herb that produces small, purple flowers.
  • Irish moss (Sagina subulata) - A dense, carpet-like ground cover with tiny, bright green leaves.
  • Sedum (Sedum spp.) - A hardy, succulent-like plant that comes in various colors and forms a thick mat.

Consider the light requirements, growth rate, and mature size of each plant when making your selection. This will help ensure they thrive in your specific environment and don't outgrow the space between your flagstones.

green grass growing between two stones on the ground
green grass growing between two stones on the ground

Planting Your Ground Cover

Now that you've prepared your site and chosen your plants, it's time to start planting. Begin by placing your plants in the center of the area, working outwards. This will help ensure even coverage.

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Carefully remove each plant from its container, loosening any circling roots. This encourages the roots to grow outwards rather than in circles. Place the plant in the soil, ensuring the root flare is level with the ground. Gently firm the soil around the plant, avoiding compacting it.

Spacing Your Plants

When planting, maintain the recommended spacing for your chosen ground cover. This allows the plants to spread and fill in the space without becoming overcrowded. Check the plant label or consult a gardening guide for specific spacing requirements.

To ensure even coverage, consider creating a grid on the ground using stakes and string. This can serve as a guide for planting and help you maintain consistent spacing.

Watering and Maintenance

After planting, water your ground cover thoroughly. This helps settle the soil and encourages root growth. Keep the area consistently moist for the first few weeks, gradually reducing watering as the plants become established.

Maintenance involves occasional weeding, especially during the first year as the ground cover becomes established. You may also need to prune or divide your plants if they become too large or dense. Regular maintenance ensures your ground cover remains healthy and attractive.

As your ground cover grows and fills in the spaces between your flagstones, you'll be rewarded with a beautiful, low-maintenance landscape feature. Enjoy the process of transforming your outdoor space into a vibrant, inviting oasis.