Cranesbill Geranium ‘Johnson's Blue’ Photo/Illustration: Chris Curless 1 2 3 4 5 6 7 8 9 10 11 Cranesbill (Geranium ‘Johnson's Blue’) jer-AY-nee-um Synonyms: Geranium himalayense ‘Johnson's Blue’ Genus: Geranium This popular perennial is grown for its blue or lavender-blue, saucer-shaped flowers that bloom for many weeks. It is useful in borders, rock gardens, and containers. It quickly reaches about 18 inches tall and 2 or 3 feet wide. Care: Provide full sun to part shade. Shear after flowering to produce fresh foliage. Propagation: Divide in spring or fall. Overview Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Growth Habit Clumps Growth Pace Moderate Grower Light Full Sun to Part Shade Moisture Medium Moisture Maintenance Low Characteristics Showy Flowers Bloom Time Summer Flower Color Blue, Purple Uses Beds and Borders, Ground Covers Style Cottage Garden Seasonal Interest Summer Interest Type Perennials Geranium ‘Johnson's Blue’View the discussion thread.