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How to Plant Between Flagstones

By Kathryn Hatter ; Updated September 21, 2017

A flagstone walkway adds old-fashioned character and rustic beauty to any landscape area. Finish a flagstone project by adding the final touch–low-growing filler plants to fill in around the flagstones. Choose plants that are durable enough to withstand foot traffic and will not require extensive maintenance. After the plants are established, they will spread delightfully between the flagstones and the result will be a beautiful flagstone walkway with just the right touch of greenery.

Select filler plants that will thrive in your flagstone area. Some filler plants require sunlight and others prefer shady conditions. Take the amount of sunlight your flagstone walkway receives into account as you are choosing the plants to use between the flagstones. Thyme is an ideal filler plant to use in a sunny flagstone area and Irish moss is an ideal filler plant to use in a partially sunny flagstone area. Consider one of the many varieties of moss for shady flagstone areas.

Use the trowel to prepare the planting area between the flagstones, if necessary. If you laid the flagstones on sand or gravel and then added a layer of topsoil prior to placing the flagstones, simply remove some of the topsoil so that you can add the filler plants between the flagstones. If the soil between the flagstones is not high-quality topsoil, remove some of the soil that is in between the flagstones and replace this soil with topsoil as you plant the filler plants.

Plant the filler plants between the flagstones, spacing them closely together so that they grow quickly into a carpet that will fill in between the flagstones. Add the topsoil around the plants and firm the topsoil with your hands so that the topsoil and plants are level with the tops of the flagstones.

Water the newly planted filler plants well. Ensure the filler plants do not dry out between waterings as they are growing larger and establishing between the flagstones.

Keep foot traffic to a minimum during the first growing season after planting filler plants.

Pull weeds by hand during the first growing season to make sure the filler plants are well-established and they get a strong growing start.

Fertilize once or twice during the first growing season. Mix the fertilizer with water according to package recommendations and apply the fertilizer to the filler plants.

Use the flagstones without worry after the first growing season. The filler plants should be well-established and spreading nicely around the flagstones.

 

Things You Will Need

  • Trowel
  • Topsoil
  • Low-growing plants
  • Water
  • All-purpose fertilizer (water-soluble)

About the Author

 

Kathryn Hatter is a veteran home-school educator, as well as an accomplished gardener, quilter, crocheter, cook, decorator and digital graphics creator. As a regular contributor to Natural News, many of Hatter's Internet publications focus on natural health and parenting. Hatter has also had publication on home improvement websites such as Redbeacon.