Lithodora diffusa 'Picos'
Purple Gromwell, Acid Soil Lithodora
Family: Boraginaceae Borage
| Type | Groundcover |
| USDA Hardiness range | 7A - 8A |
| Exposure | Partial shade to full sun |
| Bloom color | Blue |
| Bloom time | Summer |
| Water needs | Moist |
| Landscape uses | Border, cascades, ground cover, rock garden, specimen |
| Height | 6" to 8" / 15cm to 20cm |
| Spread | 4' to 8' / 1.20m to 2.40m |
| Growth rate | Slow |
| Persistence | Evergreen, semi-evergreen |
| Leaf color | Green |
| Fruit color | n/a |
| Soil pH requirements | Acidic, neutral |
| Soil type | Loamy |
| Form | Prostrate, spreading or horizontal |
| Attributes and features | Attractive foilage |