Also known as Stringy Stonecrop or Wild Stonecrop (a
name it shares with Sedum ternatum), this little
succulent really likes city yards where the soil is a
bit dry. But it can seed itself anywhere and grows
very fast: this plant grew up in a nursery pot with a
Korean lilac, and by the end of May was covered with
starry yellow flowers. Often planted as a groundcover;
it can be invasive, but its shallow roots make it very
easy to yank out if you don’t like it.
This species was introduced from Asia after Gray’s
time as a rock-garden specialty, but apparently
Pittsburgh is very much to its liking.