Geranium sanguineum is hardy down to USDA zone 3, while Geranium 'Rozanne' can only tolerate down to zone 5. Though each species varies slightly, you can anticipate these plants to grow as mounds ...

All plants used have been chosen to look good but also because they have a utility to man for example fennel which is of use in the kitchen and Geranium sanguineum which is of use medicinally.