With its long bloom time and heat tolerance, ‘Rozanne’ is one of the best cranesbill for the middle of the border, Its violet-blue flowers with their white centers appear in the late spring and just keep on coming until fall. If dryness slows it down or causes the foliage to get unattractive shearing it back to 2- 3” will rejuvenate it and in a few weeks it will be flowering again. The clump forming plant has deeply cut dark green leaves that are attractive all season, becoming tinged with red in the fall. ‘Rozanne’ is attractive massed, as a specimen, and in containers.
Type: Herbaceous perennial
Bloom: Violet-blue flowers with white centers have five petals and are 2.5” across. Long bloom-time lasts from late spring until fall.
Foliage: Deeply lobed, dark green foliage is slightly marbled.
Size: 1-1.5’ H x 1-3.5’ W
Light: Full sun with afternoon protection
Soil: Average, organically rich, moist, well-drained
Hardiness: Zones 4-8
Care: Cut back to 3” to rejuvenate if necessary
Pests and Diseases: None of significance
Propagation: Division in spring or fall
Companion plants: ‘Loraine Sunshine’ ox-eye (Heliopsis ‘Loraine Sunshine’), lamb’s ear (Stachys byzantina), Shasta daisy (Leucanthemum x superb), Siskiyou Evening Primrose (Oenothera speciosa ‘Siskiyou’), daylilies, coral bells (Heuchera hybrids).