Place the plants as deep in the ground as they were in the pot before. You can then fill the gaps in the balcony box with soil, press lightly and water the flower box. In general, you can’t say exactly how many plants you can put in a flower box, as each plant requires a lot of space. Make sure that each plant has enough space from the start so that it does not suffer any growth restrictions. The flower box often looks a bit sparse at first, but the plants grow and get bigger.
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. In general, a distinction is made between flower boxes made of plastic, concrete, wood and terracotta. The latter three are much more sustainable and environmentally friendly. With … Read More