The gardeners who have a raised bed of stone or concrete, can try the following solution:
First stick a weather-resistant tape on the stones or concrete. The surface must be thoroughly cleaned and dried first.
Then stick two parallel aluminum strips at a distance of about 2 to 3 mm. Then connect to the controller.
Suitable adhesive tape can be found in our
Online Shop .
Other option is to paint the external walls with good adhering varnish then stic the aluminum strips as usual at a distance of 2-3 mm and connect with the controller.
These solutions have been used successfully by some of our customers.