Concrete Garden Spheres: Add Some Whimsy to Your Garden


Concrete backyard spheres incorporate suppress enchantment or enrich your yard with whimsical hardscaping. Believe of them as a modern-day interpretation of the basic back garden gnome!

This post is sponsored by Quikrete

Nestle these spheres in between crops or use them to accent porch steps or the patio. No subject wherever you place them, they’ll make a fantastic dialogue piece.

Here’s how to make your very own.

Plastic planters maintain the sorts in place even though the concrete cures. (3 Echoes Content Studio)


  • 4 hollow fifty percent foam balls
  • Warm knife foam cutter
  • Toothpicks
  • Caulk
  • Planter or container loaded with dust
  • Quikrete 5000 Concrete Blend
  • Drinking water
  • Nitrile gloves
  • Eye security
  • Mixing container
  • Drill with a mixing paddle
  • Back garden trowel
  • 120- or 150-grit sandpaper

creating forms for concrete garden spheres using a foam ball and hot knife
A warm knife would make a clear minimize in the foam ball. (3 Echoes Written content Studio)

Develop the Sorts

You are going to want two hollow fifty percent foam balls for each individual backyard sphere you want to make. I’m earning two spheres at a time, so I have received 4 50 % foam balls. 

Initial, use a hot knife foam cutter to make a 2- or 3-inch-diameter hole in the tops of two fifty percent foam balls. (These will serve as the spheres’ tops, in which you will pour the concrete — but we’ll get to that afterwards.) 

Then, set the other two 50 % foam balls in planters or containers filled with dust to maintain them continuous. (These will provide as the spheres’ bottoms.) Adhere toothpicks into the rims of each and every base 50 % foam ball and use caulk all together the rims. The toothpicks continue to keep the top foam ball from shifting, even though the caulk produces a seal so no concrete mix seeps out. 

Inserting a toothpick into a foam ball
Toothpicks protected the 50 percent foams balls with each other. (3 Echoes Content material Studio)

Area the other two fifty percent foam balls on top of the base 50 % balls, making sure the toothpicks join the bottom halves with their tops, all the way close to. Wait for the caulk to dry. Most silicone caulk takes 24 hours to dry, but some quick-drying caulks only get 1 to three several hours. 

Trowel mixing concrete in a plastic bucket
Mix Quikrete 5000 Concrete Mix and insert drinking water right up until it’s the consistency of oatmeal. (3 Echoes Content Studio)

Mix the Concrete

When the caulk is dry, you’re prepared to combine the concrete. I’m employing Quikrete 5000 Concrete Mix due to the fact it strengthens quickly. 

Tip: When working with cement-based mostly products, constantly dress in a mask, eye defense and nitrile gloves.

Use a drill with a mixing paddle and observe the bag’s guidance for mixing. 

Your concrete mix should really search like oatmeal — if it does not, gradually incorporate more water to get this consistency.

Trowel pouring concrete into a foam ball
A smaller yard trowel is a excellent size for shoveling the combine into the sphere. (3 Echoes Information Studio)

Fill the Spheres

The moment the concrete is comprehensively combined in accordance to the instructions, scoop it into the sorts with a garden trowel until eventually they are whole. 

Quikrete 5000 Concrete Mix takes about five days to remedy in warm climate (70 degrees Fahrenheit or higher) or 7 times in colder weather conditions (50-70 degrees Fahrenheit).

Removing foam from a concrete garden sphere
The major of the sphere wherever the concrete was poured will be the sphere’s foundation. (3 Echoes Written content Studio

Eliminate the Foam

Right after the concrete cures, clear away the foam balls. 

Chelsea Lipford Wolf uses a hot knife to remove foam from a concrete garden sphere
Slash the foam vertically with a incredibly hot knife — this aids to take out more substantial pieces of foam at one time. (3 Echoes Written content Studio

For less complicated removal, reduce very long triangles alongside the balls with the sizzling knife to enable leverage the type off the concrete sphere.

Chelsea Lipford Wolf sands concrete garden spheres
Rub sandpaper in a round motion for a smooth end. (3 Echoes Written content Studio

Sand Any Imperfections

After you eliminate all the foam, sand the full sphere with 120- or 150-grit sandpaper for a easy end. 

Sealing concrete is usually a fantastic idea — it will continue to keep the garden spheres from obtaining moldy, and it will increase a slight sheen. Use Quikrete Acrylic Heal and Seal as soon as the concrete has hardened and the floor sheen has disappeared.

Now, all that is remaining to do is determine the place you want to clearly show them off in your garden!

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