Cut upright types to the ground after fall frost or before new growth begins in spring.
Sedum roof fertilizer.
This might also be good to know should you be required to comply with particularly strict local environmental regulations.
Such living roofs can be found on industrial buildings as well as.
Partly because sedums require little or no fertilizer or other maintenance species that form low mats are used for green roofs.
Apart from the economic incentive for selecting a diverse pallet of sedums for the roof it also has ecological effects as a resilient roof will require less fertilizer applied as well as fewer pesticides.
Sedum fertiliser contains all the nutrients that a sedum roof will need but in a slow release formula so that unused nutrients don t get washed away by rainfall.
Never exceed the manufacturers recommended rate.
It provides a strong root system for the sedum plants and thus increases plant health.
Fertilizing once or twice a year spring and or early fall with an organic rich fertilizer is usually enough.
Increasing the application rate of organic fertilizers to compensate for their lack of readily utilizable nutrients may be effective at improving sedum green roof aesthetics however there may be associated risks as far as nutrients in runoff.
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Too much nitrogen will encourage weeds to grow on the roof and will also kill the sedum plants.
Addition to plant stimulation it also contributes to soil improvement ensuring a balanced substrate layer.