Anyone have a green roof?

[Hairyfriend]

We are thinking of putting this on a new extension. Any good/bad experiences you can tell me about yours?

[Seashell1234]

I have one on an outbuilding and it's lovely! No trouble.

[Hairyfriend]

@Seashell1234- Thanks. What maintenance does it require? I'd read about annual fertilising and watering if very hot/dry. Is yours sedum?

[Seashell1234]

I haven't been told to fertilise it (it looks sedumy but I forget the exact type). I watered it when it was first installed (heat wave) and once or twice this year when it was crazy hot.

[Stokey]

Yes we have one above our kitchen. It's sedum, very low maintenance. When it's been very dry we stick a sprinkler out there, only if it's starting to look brown. And get out there a couple of times a year to tidy up leaves, check gutters etc. I love it. We can see it from our upstairs landing, bathroom and back bedroom. It's so much nicer than seeing a vast bit of concrete and good for wildlife.

[LtGreggs]

Our next door neighbours have one on an outbuilding. It started off sedum, now (5+ yrs later) it is weeds/grass. The neighbours are not natural gardeners though.

[Watto1]

Silly question but do you have to mow it? I’ve got a picture in my head of my dh mowing the roof!

[Hairyfriend]

@Watto1- No mowing required. Apparently the plants used (sedum) are only small when fully grown. I was told we'd need to fertilise it annually, along with check there are no rogue grasses or other plants growing in it.