Plant Detail

Lithodora diffusa |Grace Ward|

 Lithodora diffusa 'Grace Ward' (Gromwell) is a mat-forming evergreen shrub with trailing stems clothed in small, lance-shaped, dark green, hairy leaves. In spring and summer, it is studded with profuse, star-shaped, brilliant deep blue flowers held in terminal clusters. This plant is ideal for rock gardens, slopes, and cascading over retaining walls. A choice groundcover making an unforgettable display week after week.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.
  • Grows up to 6-12 in. tall (15-30 cm) and 2-3 ft. wide (60-90 cm).
  • Easily grown in acidicwell-drained soils in full sun or partial shade. Full sun is best in cool summer climates, but some afternoon shade is appreciated in hot summer climates.
  • Deer resistant
  • Great for beds and bordersslopes, as a groundcovercottage gardenscoastal gardenscity gardens, Mediterranean gardens, or gravel and rock gardens. Good choice for containers too.
  • Virtually disease and pest free
  • Trim back after flowering. Propagate by semi-hardwood cuttings
  • Native to Southern and Western Europe.

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Requirement
Hardiness 6,7,8
Heat Zones 6,7,8
Climate Zones 5, 6, 7, 14, 15, 16, 17
Plant Type Shrubs
Plant Family Boraginaceae
Exposure Full Sun, Partial Sun
Season of Interest Spring, Summer, Late Spring, Early Summer, Mid Summer, Late Summer
Height < 1'
Spread 2' - 3'
Water Needs Average
Maintenance Low
Soil Type Loam, Sand
Characteristics Plant of Merit, Showy, Evergreen
Garden Styles City and Courtyard, Coastal Garden, Gravel and Rock Garden, Informal and Cottage, Mediterranean Garden
Planting Place Banks and Slopes, Beds and Borders, Ground Covers, Patio and Containers