Do I need to mow a sedum green roof?

Mowing a sedum green roof is not necessary. Maintaining a green roof is fairly easy, as a green roof is almost maintenance-free. The roof is delivered fully vegetated, leaving little room for weeds to grow. To keep the roof good for as long as possible, it is customary to go on the roof at least twice a year. This is necessary because the roof needs to be fertilised, in addition to removing weeds. While maintaining a green roof, you can simply walk over the plants. With proper maintenance, the plants are strong enough to repair themselves.

Green roof maintenance

Inspection of your sedum: To prevent your roof from ending up completely full of weeds, check the roof for weeds twice a year, preferably in spring and autumn. When weeds grow between the plants, you can remove them by hand. Do not use a chemical pesticide to remove the weeds. Immediately check whether the drainage system is still flowing properly and remove windblown leaf debris. There is no need to mow a sedum green roof!

Fertilising the sedum roof: To keep the plants in optimal condition, it is recommended to fertilise the roof twice a year, in late April and early September. In our webshop you will find fertiliser products.

Sedum roof watering: Watering a Sedum is not necessary. Except during a dry period in the first 12 months after planting. This gives the planting time to recover. When an extremely dry period arrives, it is also wise to provide the roof with some extra water. You can also water the roof if you want to keep it green all year round.

Note: A light sedum roof has a limited water buffer. It is recommended to water every fortnight during the summer. Want to know more about a green roof? Take a look at all benefits of having a green roof.

Biodiversity roof maintenance

Fertilising biodiverse roof: A biodiverse roof does not use extra nutrition. A biodiverse roof can change its composition, so the plants adapt to the environment.

Water biodiversity roof: You don't need to water a biodiverse roof extra except in very dry summers

Mowing biodiversity roof: To maintain vegetation on a biodiverse roof, it is recommended to mow the roof at least once a year. If you want to limit roof growth, you can mow an additional time in mid-June. To keep biodiversity as high as possible, it is best to mow only in September. For a small roof, it is best to use a brush cutter. For larger roofs, the recommendation is to use a beam mower or brush cutter on wheels.

More information?

Would you like to order a Sempergreen green roof package? Or do you have a question about maintaining a green roof? View all our green roof packages or contact us for more information