You will need:
1 old flower pot
3 or 4 smaller ones
1 old broom stick (or metallic pipe)
You need a way to make your broom stick stable inside the big pot, so as to hold the weight of the smaller pots later on. You can use plaster or cement on the bottom of the pot. I wanted the most ecologic way so i used another pot! I made a few holes at the bottom and a big one in the middle for the stick. Pushed through the stick and filled it up with soil. I poured some water as i was filling it, to make the soil more compact. You can leave it to dry and push it hard to make it as compact as possible.
Then put the big pot (upside -down) on top of your filled pot and then turn them both around (if you just turn the filled pot in the bigger one..you might end up spilling all the soil). Fill the big pot up with soil!
Water the soil as to avoid any air between the small pot and the soil. Push the soil down with your hands.Try to move the stick towards the sides to check its stability!
Now its time to prepare the small pots. Take a sharp knife and make some equidistant cuts at the bottom, trying to end up with a star. This is a very nice way to avoid large holes that let the soil go through when watering the plants, but also because the cuts add pressure on the stick and stay in place.
Try to make your star on the side, to create this falling effect. Ιn this case i have used plastic pots. If you are using ceramics it is better to use the already made holes.
When you are done with all the pots, just pushed them through the stick.
Fill them up with soil, your favorite plants...and you are ready!
A great solution for a tiny balcony! And a wonderful recycling idea!