Petrosedum sediforme 'Turquoise Tails' is an old world form of sedum from the Mediterranean with very interesting blue/green foliage. It has a somewhat spiky appearance to the leaves. It seems to be a slow grower and over time will show the lower part of the stems, making the plant look like a miniature evergreen forest. It grows in most fast draining soils, but really seems to do well in a sandy loam type of mix. Rarely needs water in hot/dry weather.
In my garden it seems slow to bloom. This is the second year with the sedum and it has not bloomed yet. The blooms are said to be a creamy yellow color. I find the petals to actually be white, but take on a pale yellow hue from reflection of the yellow pollen.

Update July 17, 2015:
This is my third summer with this wonderful plant. It had multiple blooms stalks that began forming in early June. Towards the end of June the deer nipped out all but one of the bloom stalks. I placed a wire basket over the plant to preserve the one remaining bloom stalk, and was rewarded with lovely, delicate creamy yellow blooms. This would have been an impressive display if all bloom stalks would have been allowed to mature.

I will try to gather seed and see if I can start new plants in this manner.

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