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Sempervivum Question

Posted by BeverlyWV 6AWV (My Page) on
Sun, Mar 7, 04 at 10:39

I am going to plant semps on the cellar roof. I would like to know if anyone knows the way to go about it. I have loads of semps so that part is taken care of. I thought that building a lip around the edges of the roof would be necessary.I know this is something that probably is not done nowadays but any advice is appreciated. Bev.


Follow-Up Postings:

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RE: Sempervivum Question

Have you searched on Google? Do a search for Houseleek as well as Sempervivum. I know that I read an article online (don't have the website, sorry) about succulent roofs and weight was an issue, since soil, water and plants can be quite a load on a roof not built for it.


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RE: Sempervivum Question

In the UK Xanadu, the name 'Houseleek' is an old, and still popular, word used for plants like Sempervivums, Jovibarbas and Rosularias. The magazine of the Sempervivum Society in the UK (which no longer exists unfortunately) was called by the old English name 'Houslekes'. In Europe there is an ancient tradition where Semps. were grown on the roof to protect the house from being struck by lightning. How well plants do will depend on the type of roofing material and how hot the roof gets. In your part of the world I imagine that the plants will cook quite nicely - they'd have to be tough to survive. If you try the link below you will find a picture of semps. growing on a roof in Derbyshire, UK.

Here is a link that might be useful: Houseleeks on roof


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RE: Sempervivum Question

For some reason I misread your message Xanadu. Having read it again it's obvious that you know about Houseleeks and I'm passing on information you already know I'm sure. I must slow down and be more careful when I reply to messages in future. Growing Sempervivum tectorum on a low section of roof at home started a lifelong love of these plants. I just pushed a little compost inbetween the tiles and left the plants to cope as best they could. Our house was never struck by lightning so the old story must be true.


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RE: Sempervivum Question

Robert, I love sempervivums as well. Great picture of houseleeks on a roof. The article I read went into great detail about the necessity of a barrier between the roof and the plants, weight, planting and watering. We don't have many places with the lovely old slate roofs shown in the picture (at least, I think it's slate) and composition or wood roofs will rot here if plants are placed directly on them. And you are right, I struggle to keep my semps alive in our horrendously hot summers. They get watered very sparingly, if at all, from the end of June until the middle of September. I lost over 20 varieties to root rot the first summer I lived here.


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RE: Sempervivum Question

Thank you for your replies. Do you think I should plant one type semp that would be tougher? I read that the tectorum type were used on roofs. You are right Robert about the heat. I am building a shade house for my semps in pots. These are the ones I will be propagating for sale. This is a cellar roof so it will be close to the ground. We have discussed placing some type barrier between the soil and the roof to help keep the semps from cooking. I have extra plants so I think we will give it a try. I will let you semp lovers know how the project goes. Bev.


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RE: Sempervivum Question

This link might have some helpful websites.

Here is a link that might be useful: http://www.succulent-plant.com/botanic.html#sempervivum


 
 

 

 


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