Stonecropping in a Fugue State

I have never entered a shoe-buying, jeans-bingeing, on-line procuring fugue state, where I’m surprised later by my acquisitions.  I did, however, worry last week that I’d gone around the bend with the on-line plant purchasing when a large Izel box arrived that I didn’t remember ordering.  It was full of stonecrop–fifty plugs of stonecrop, to be precise.  What had I done?  Was a time traveler controlling my terraforming efforts?  More importantly, what the heck was stonecrop?

My first thought was...