Here's what Annie from Annies Annuals & Perennials has to say about Tellimas aka "Fringe Cups":
"One of my must have favs, this solid-as-a-rock California native perennial makes the best groundcover for difficult shady spots. I love it under roses or against walls where it will make a compact mound of pretty lime green leaves. Not invasive, its charming chartrueuse and green frilly star-flowers appear all Spring on erect stems. Hummers! compost once a year. Shade/am sun. Average water"
Tellimas grow somewhat like Heucheras -- I like their growth habit better than Heucheras. Our plants are mature and fill their gallon can pots -- in fact, most pots contain more than one plant. You'll find these choice California native perennials in our shade bed. 

A stunner from Britain with lightly scented intricately veined gray-green leaves and an abundance of small purple blossoms Spring and Summer. A wonderful groundcover. Needs full sun. When your Nepeta begins to look scruffy, cut it to the ground and it will come back fresh and new. You will find our Nepetas in the Herb Bed. While you're there, take a look at our large selection of Rosemarys which are now in bloom.