Rozanne Geranium
Geranium ‘Gerwat’ · a violet-blue reblooming hardy geranium
One of the longest-blooming perennials, with violet-blue, white-eyed flowers from late spring into fall on a wide, spreading mound that fills borders, pots and baskets. It needs no deadheading, copes with dry spells once settled, and deer and rabbits leave it alone. It flowers best in sun; in too much shade it sprawls.

- Mature size
- 1.5 × 2 ft
- 0.5 × 0.6 m, tall × wide
- Hardiness
- Zones 5a–8b
- USDA
- Sun
- Full sun to part sun
- Water
- Medium
- Blooms
- Jun–Oct
Rozanne Geranium at its mature size
A mature Rozanne Geranium grows 1 to 1.67 feet tall and 1.25 to 3 feet wide.
Drawn to scale beside a 5 ft 9 in person. With VeraScape, you see it at this size in your own yard.
Typical mature size, unpruned. Sources: NC State Extension, Walters Gardens, Proven Winners.
Through the year
What Rozanne Geranium looks like month by month in a typical zone 6–7 garden.
Below ground · Dec–Mar
Dies back to the ground; draw nothing but keep it selectable.
In leaf · Apr–May, Nov
Low mound of deeply cut green leaves, few flowers.
In flower · Jun–Oct
Spreading mound covered in violet-blue saucer flowers.
Growing Rozanne Geranium
- Grows well in
- The Northeast, the Southeast, the Midwest, the Plains and Mountain West, the Pacific Northwest, and California.
- Growth rate
- Medium
- Good for
- Groundcover and deer resistant
- Leaves
- Dies back in winter
- Native to
- Garden hybrid
Spacing
VeraScape spaces plants so their grown canopies just touch. For Rozanne Geranium, that’s about 2 ft apart, center to center.
Place a row in your own yard and VeraScape spaces them at their mature width, so you can see whether they’ll crowd the walk.
See Rozanne Geranium in your yard before you dig
Visualize it at its true size, alongside the rest of your design.
Other hardy geraniums
All drawn to the same scale.