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Is this Mare's tail or a rock plant? Cleaning the windows after new ones had been installed I spotted it on the garage roof below.

Can anyone give me a definite ID please?




It's a type of sedum rockery plant. It will form a lovely green carpet! I have this too! If you want it elsewhere for ground cover in your garden, snip a stem off and plant the end in the soil. It takes well and looks great all year round :)

11 May, 2016


Don't panic , its not horsetail. There's a lot of confusion between marestail and horsetail and the names seem to be used interchangeably although they actually belong to different families. - the mares tail strictly speaking is a pond plant. Anyway the good news is that your plant is neither - sorry I know it well but its name escapes me.

11 May, 2016


Thank you both. I thought it looked like a rock plant but after the recent mare's tail post I wasn't as sure as I would have been. It's quite nice so I think I shall allow it to stay and create a green roof - as long as it doesn't cause leaks.

11 May, 2016


It shouldn't cause any leeks it only has small roots ( mine only has very shallow roots in the gravel) mine has spread very very fast allover the gravel but it looks fab!

11 May, 2016


Oops Dan, you beat me to it. Yes , sedum - I feel silly now.

11 May, 2016


I agree it's a Sedum Stone Crop. Looks very much like Sedum Rupestre 'Angelina.' It makes a nice ground cover.

11 May, 2016


I agree with the others, for clarification; marestail is an aquatic weed botanical name Hippuris vulgaris, and horsetail which grows on land is; Equisetum arvense, Derek.

11 May, 2016


I have the mares-tail in the pond! It's kept in check by me (if the fish don't get the leggy parts first)

11 May, 2016


Dan, my Mum told me when I was young that the mares tail is a miniature version of the large plants that are now coal.

12 May, 2016

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