Leonie Weekend Projects - Contemporary Concrete Window Planters

What you need

  1. Sand & Cement Mix - A bag of handimix sand and cement from Woodie's. A 5kg bag is plently. (*Note: try not ot get cement mis on your hands or clothes. It can be irritating on your skin. It is best to wear gloves to avoid contact with the mix)
  2. Coffee Cups & Plastic Pots - Collect coffee cups, plastic pots or similar to use as your containers for holding the cement. You will need two different sized containers to create the planter. Pour the cement in to the larger container to create the and the second pot will be used to create the hole in the centre of for the soil.
  3. Water.
  4. Stone - A stone to weigh down the inner container.
  5. Seeds - A large pot or container for mixing the cement.
  6. Trowel/Spoon - A trowel or big spoon  for mixing.

Step 1.

Take your sand and cement mix and stir it up in the pot. The ratio used in this example was 1 part cement to 2 parts sand as planters need plenty of strength to avoid crumbling.

Step 2.

Mix the sand and cement until the have formed a thick paste.


Step 3.

Pour the mix into one of your containers. I have used a granola pot which is perfect. Remember down fill it to the top as when you place the second container inside it will displace the mix a little.


Step 4.

Add in your second containers. I have simply used a small paper coffee cup. Push this down but not quite to the bottom as the base needs to be completely solid. Make sure the coffee cup stays down by adding a stone.


Step 5.

Let the containers dry, this can take a couple of days so be patient! If you go at them to soon they may crumble, I waited a week to be sure and the next weekend I was able to take them out of the containers. The Granola container can be used again and again as it releases the container perfectly. The coffee cups are one use only as they tear and bend when we take out the planters.


Step 6.

The final step is to plant them up. A mix of grit and potting soil is perfect for cacti and succulents that need good drainage. Finally choose a few pretty little specimens.