Garden Q&A: What should I plant in a living/green wall?

Apart from their obvious environmental benefits, living or green walls are a fabulous way to bring colour and interest upwards in the garden.
They introduce another dimension by creating vertical gardens. Many plants and groups of plants can be grown in living walls, including, grasses, ferns, Heuchera, Hostas, Vinca, bedding plants, herbs and even fruit and salad crops.
The main determining factor is the aspect of the wall. On a north-facing and shady wall, I would look at shade-loving ferns and maybe hostas and astilbes and if you want to grow herbs or strawberries in your living wall, then position it on a sunny aspect.
Bedding plants too will thrive on a sunny living wall and you can also grow low-growing alpine plants which can create a very soft and evergreen effect.

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