Feldman ArchitectureModern, San Francisco
What Houzz contributors are saying:
How much maintenance will I need to do?A new extensive green roof should ideally be watered every day for the first three months. Beyond that, however, maintenance is a low-key affair. ‘Pop up and weed the area once or twice a year,’ advises Simon. Wildflowers might need a little more light weeding and should be trimmed each autumn, plus you may need to water them occasionally in a hot spell. ‘Make sure gutters are kept free with nothing trailing into them,’ adds John.Sedum and wildflower roofs sometimes need replacement plugs inserting if one or more plants fail to thrive. Many companies offer a six-monthly or annual maintenance visit if you prefer to be totally hands-off.