Geranium ‘Anne Thomson’

hardy geranium


  • © Bellevue Botanical Garden Society

  • © Bellevue Botanical Garden Society

  • © Bellevue Botanical Garden Society

Outstanding Qualities

Geranium 'Anne Thomson' has radiant, gold-tinted foliage that is punctuated with a succession of 1-inch-wide, dark magenta flowers all summer long. 'Ann Thomson' is an easy-to-grow, well-behaved weaver that forms a low-spreading mound, perfect for front-of-the-border locations and containers. This perennial is a natural for those who like to experiment with vibrant color combinations. Consider black mondo grass, purpleleaf snakeroot (Actaea simplex 'Brunette'), Thalictrum rochebruneanum, Thalictrum delavayi, purple moor grass or Iris pallida 'Variegata'. It has a similar look to Geranium 'Anne Folkard', but 'Ann Thomson' does not spread as over-vigorously. It is a hybrid of G. procurrens x G. psilostemon.

Quick Facts

Plant Type: perennial

Foliage Type: deciduous

Plant Height: 0 ft. 8 in. (0.21 meters)

Plant Width/Spread: 3 ft. 0 in. (0.91 meters)

Hardiness: USDA Zones 4 to 8

Flower Color: purple

Sun/Light Exposure: full sun

Water Requirements: regular watering during prolonged dry spells

Seasonal Interest: autumn color

Wildlife Associations: bees, butterflies

Colors & Combos

Great Color Contrasts: black, bronze, silver

Great Color Partners: pink, purple, orange

Culture Notes
This hardy geranium prefers full sun but tolerates light or open shade with rich moist to well-drained soils. For the longest flowering and best bloom provide regular watering during prolonged dry spells. Cut it to the ground in late fall or early winter. This vigorous grower can be divided every three to four years in late winter to early spring.