Irrigation and nutrition components
For small Plantwall structures you can water the plants through the plant holes at the front, with a standard watering can, although when the plants grow this will be more difficult to do without spilling the water.
The circular clips on the sides of the modules can be used to install an irrigation line, for example the inline - drippers from Gardena. It is relatively easy to irrigate the wall by connecting a standard garden hose to the drippers ystem, or to create a fully automatic irrigation and nutrition system with a timer and nutrition module.