How to Plant Ground Cover Between Flagstone

Transforming the spaces between flagstone into lush, verdant areas is an achievable goal with the right ground cover. Not only does it add beauty, but it also helps prevent weed growth and stabilizes the soil. Let's explore how to plant ground cover between flagstone, creating a harmonious blend of functionality and aesthetics.

Before delving into the planting process, it's crucial to understand the benefits of using ground cover. Ground cover plants help to retain soil moisture, suppress weeds, and add texture and color to your landscape. They are low-growing, spread quickly, and require minimal maintenance once established. With these advantages in mind, let's proceed to the steps involved in planting ground cover between flagstone.

Preparing the Area

Before introducing your chosen ground cover plants, it's essential to prepare the area between the flagstones. This step ensures that the plants have the best possible start and will thrive in their new environment.

The first task is to remove any existing weeds or debris from the area. This step is crucial as it prevents competition for resources and helps to create a healthy environment for your new ground cover plants. Use a hoe or a sharp knife to carefully remove any unwanted growth, taking care not to damage the flagstones.

Clearing the Soil

Once the area is free of weeds, it's time to focus on the soil. The quality of the soil will significantly impact the growth and health of your ground cover plants. Ideally, you want a well-draining, loose, and fertile soil mix.

If your soil is compacted or has poor drainage, consider incorporating organic matter such as compost or well-rotted manure. This will help to improve soil structure, increase water retention, and provide essential nutrients for your plants. Use a garden fork or a shovel to work the organic matter into the soil, ensuring that it's well-incorporated and evenly distributed.

Creating a Level Surface

Flagstone paths and patios can settle over time, leading to uneven surfaces. Before planting, it's essential to create a level surface to ensure even growth and prevent water from pooling in low spots.

Use a rake or a leveling tool to create a smooth, even surface. Fill in any low spots with additional soil or sand, and gently tap down any high spots to create a consistent surface. This step will not only promote even growth but also make maintenance tasks, such as watering and weeding, much easier.

Choosing the Right Ground Cover Plants

Selecting the appropriate ground cover plants is crucial for a successful outcome. The best ground cover plants for between flagstone are low-growing, spread quickly, and have shallow root systems that won't lift the stones.

Some popular ground cover options include creeping thyme, Irish moss, deadnettle, and bugleweed. These plants are known for their ability to thrive in a variety of conditions, including partial shade and full sun. They also provide a range of colors and textures, allowing you to create a visually appealing landscape.

Considering Growth Habit and Size

When selecting ground cover plants, it's essential to consider their growth habit and mature size. Plants with a spreading growth habit, such as creeping thyme, are ideal for filling in the spaces between flagstones. These plants will naturally spread out, creating a dense mat that helps to suppress weeds and stabilize the soil.

Additionally, consider the mature size of the plants. Choose plants that will not outgrow the space between your flagstones, as this can lead to overcrowding and competition for resources. By selecting plants that are well-suited to the available space, you can create a lush, healthy landscape that requires minimal maintenance.

Matching Plant Colors and Textures

Ground cover plants not only serve a functional purpose but also add visual appeal to your landscape. When selecting plants, consider the overall aesthetic of your garden and choose plants that complement the colors and textures of your flagstones and other nearby plants.

For example, creeping thyme comes in a variety of colors, including pink, purple, and white, which can add a pop of color to your landscape. Additionally, the fine texture of Irish moss can provide a soft, lush contrast to the rough texture of flagstones. By carefully selecting plants that complement your existing landscape, you can create a cohesive and visually appealing design.

Planting the Ground Cover

With the area prepared and the appropriate plants selected, it's time to plant your ground cover. This step involves carefully placing the plants between the flagstones and ensuring that they have enough space to grow and spread.

Before planting, it's a good idea to soak the plants in water to help them settle into their new environment. This step also helps to remove any air pockets that may have formed around the roots during transportation.

Placing the Plants

Start by placing the plants evenly between the flagstones, ensuring that they are spaced appropriately. The exact spacing will depend on the growth rate and mature size of the plants. As a general rule, space plants about 6-12 inches apart, allowing for enough room for them to spread and fill in the gaps.

Use a trowel or your hands to gently dig a hole for each plant, being careful not to damage the roots. Place the plant in the hole, ensuring that the root flare is level with the soil surface. Gently firm the soil around the plant, taking care not to compact it too tightly.

Watering and Mulching

After planting, water the ground cover plants thoroughly to help them settle into their new environment. Watering also helps to remove any air pockets that may have formed around the roots during planting. Continue to water the plants regularly until they become established, which typically takes about 2-3 weeks.

Once the plants are established, apply a layer of organic mulch around them. Mulch helps to retain soil moisture, suppress weeds, and regulate soil temperature. It also provides a natural, attractive finish to your landscape. Use a 2-3 inch layer of mulch, ensuring that it doesn't touch the base of the plants to prevent rot and disease.

Maintaining Your Ground Cover

With proper care and maintenance, your ground cover plants will thrive and create a lush, inviting landscape between your flagstones. Regular watering, weeding, and occasional pruning will help to keep your ground cover looking its best.

Water your ground cover plants regularly, especially during dry spells. Deep watering once or twice a week is preferable to frequent, shallow watering, as it encourages root growth and helps to establish a healthy, drought-resistant plant.

Controlling Weeds

Weeds can quickly become a problem in ground cover, competing for resources and detracting from the overall appearance of your landscape. To control weeds, maintain a dense growth of ground cover plants, which will naturally suppress weed growth.

Additionally, apply a pre-emergent herbicide in early spring to prevent weed seeds from germinating. Be sure to choose a herbicide that is safe for use with your specific ground cover plants and follow the manufacturer's instructions for application. Regularly inspect your landscape for weeds and remove any that appear promptly to prevent them from spreading.

Pruning and Dividing

Most ground cover plants require minimal pruning, but occasional grooming can help to maintain their shape and encourage dense growth. Use sharp, clean pruning shears to trim back any leggy growth or to remove dead or damaged foliage.

Some ground cover plants, such as creeping thyme, can become woody and lose their vigor over time. To rejuvenate these plants, divide them every 3-5 years. Dig up the plant, using a sharp spade or fork to cut it into smaller sections. Replant the divisions in a well-prepared bed, spacing them appropriately to allow for growth and spread.

By following these steps and providing consistent care, you can transform the spaces between your flagstones into a lush, inviting oasis. Ground cover plants not only add beauty and texture to your landscape but also help to prevent weed growth and stabilize the soil. With the right plants and a little bit of effort, you can create a harmonious blend of functionality and aesthetics that will enhance your outdoor living space for years to come.