Concrete Garden Balls…an Easy DIY

You can find these garden spheres, orbs, or balls in many places, I know I’ve seen them at Pottery Barn. But, they can be pricey. I spent $16 on the Cement All and $5 each for my glass globes, so for $26 total, I have two spheres. The key is to find the glass globes, so keep your eye out for those.

What You Need to Make Concrete Garden Balls

• Glass light globes or light covers, I used a 6″ diameter globe and a 7″ diameter globe. (I expected that used and discarded glass globes would be easy to find at my local Habitat Restore…nope! It took several months of popping in and out of my local reuse stores to find two of them. You could always buy new ones, but you can only use them once, so I’d try to find used ones.)

• Cement All Rapid Set
• Water
• Measuring cup
• A large tub or bucket to mix concrete
• A large metal spoon or concrete mixing paddle for a drill. I used a metal spoon, it took a little elbow grease but it wasn’t worth buying a new ‘thing’ to make the garden balls.
• Kitchen baking release spray, WD-40 or something similar.
• Box with packing peanuts or packing pillows, towels, or something to hold the globe in place while the concrete dries.
• Gloves, protective eyewear, canvas drop cloth, and a hammer to crack the globe after it is set.

• For a 6″ diameter globe (7.8 cup volume) you will need
• 8 cups of Cement All Rapid Set and up to 3 cups of water

• For a 7″ diameter globe (12 cup volume) you will need approximately
• 16 cups of Cement All Rapid Set and up to 6 cups of water.

How to Make Concrete Spheres

• Have all your materials handy.
• I used a bucket for mixing, but a tub would be much easier. If you will be stirring by hand, add half of the powdered concrete to the tub or bucket, and then add about three-quarters of the water.
• When that is fully mixed, add the remaining concrete powder.
• Stir until no dry mix is left. Add water in very small quantities until it just reaches a consistency where it is thick, but is a little glossy on the surface. When you stir, you will see the ‘sandy’ texture, but when you stop stirring, it will quickly settle back to a smooth surface. You are looking for a thick pudding or oatmeal consistency. Adding too little water is better than adding too much water.

• This Rapid Set concrete will set quickly, so once it is mixed, you need to work quickly.
• Spray the inside of your globe with baking release spray or WD40.
• Set it with the opening facing up and pour the concrete into the globe until it fills the entire globe.

• Leave the globe somewhere where it can sit undisturbed. Rapid Set will set in 1 hour, but since this is so thick, it will take longer for it to be fully set. I waited about 18 hours.
• After 12 – 24 hours, place your globe filled with concrete on a drop cloth. Wearing protective eyewear and gloves, tap the globe until the glass breaks and falls away, revealing your brand spanking new Concrete Garden Ball!

I like my garden balls the natural color; I hope to grow moss on them. I’ll keep you posted on that project. But, if you would prefer, you can add acrylic paint to the wet mix when you are mixing it together. I’d add it to the water for ease of mixing it consistently.

• There may be some residual marks from the oil spray, but it will wash away when it rains.