Plant FinderPlant Finder Graphic
Lithodora diffusa ‘Star’ (photo courtesy of Linda Lamb Peters)
Lithodora diffusa ‘Star’ (photo courtesy of Linda Lamb Peters)

Click to Enlarge

Zone
Zones 5-7, 14-17
Full SunPartial Sun
Full, Partial
Regular Water
Moderate

Lithodora diffusa

Boraginaceae
Ground covers, Perennials, Flowers

Probably the most recognizable blue-flowered groundcover in its range, Lithodora forms a prostrate, somewhat woody, slightly mounded mass to 6–12 in. high and 3–4 ft. wide. Narrow evergreen leaves are 3/4–1 in. long; both foliage and stems are hairy. In late spring (and often later), the plant is sprinkled with brilliant blue, tubular, 1/2-in.-long flowers. Native to southern and western Europe.

Give loose, well-drained, lime-free soil. Best suited to mild-summer climates. ‘Heavenly Blue’ and ‘Grace Ward’ are the forms most commonly seen. ‘Star’ (‘Blue Star’) has white-edged blue blossoms.

You Might Also Like...

Delphinium nudicaule

Native of Northern California and southwestern Oregon. Slender plant to 1–3 ft. tall and less th...

Lithodora diffusa

Probably the most recognizable blue-flowered groundcover in its range, Lithodora forms a pros...

Cypripedium formosanum

From Taiwan. White or pale pink, 3-in. blooms are delicately stippled with darker pink; emerge from pa...

Find Your Sunset Climate Zone

Find Your Sunset Climate Zone

View Maps Learn More

Advertisement