Large lavender-blue flowers are 3" wide and bloom on strong stems held above green oblanceolate leaves.
| Scientific Name: | S. x 'Grand Stone' |
| Zone: | 4 |
| Light: | Sun |
| Height: | 20" |
| Width: | 12-24" |
| New Shape: | Mounded |
| Foliage: | Green |
| Flower: | Blue |
| Bloom Time: | Jun-Sep |
