Hardy Geranium

Geranium sanguineum

Low mounding perennial with magenta flowers; long-blooming, drought-tolerant edger for sunny borders.

Sunlight Full Sun

Water Moderate

USDA zones 3–9

Planning spacing 1.5 ft

Typical mature size 1 ft tall, 1.5 ft wide

Typical bloom Late spring - mid summer

Hardy Geranium spacing and mature footprint

Space Hardy Geranium 18 inches apart, measured center to center (45 cm).

The mature spread is about 18 inches (45 cm), so neighboring plants just meet at maturity without crowding.

Treat 18 inches as a planning baseline — cultivar and local growing conditions shift the final footprint.

Three plants set 1.5 ft apart, center to center; shaded circles show the 1.5 ft mature spread.