Geranium Rozanne -this is one of the best perennial geraniums around. It makes in height and in spread with a somewhat lax habit. It bears abundant mauve-blue flowers from June-September and likes a well-drained position in sun or partial shade
How To Prune Your Hardy Geranium or Cranesbill (Or: Ode to 'Rozanne')
Perennial Geranium There are a wealth of geraniums perfect for cottage gardens. 'Johnson's Blue' is among the most common; it offers beautiful blue-purple flowers in early summer. Name: Geranium 'Johnson's Blue'
'Rozanne' Geranium It offers gorgeous lavender-blue flowers from early summer all the way to frost, attractive variegated foliage, and it's a cinch to care for. 'Rozanne' is definitely a winner! Name: Geranium 'Rozanne' Size To 1 foot tall and 3 feet wide