Geranium ‘Brookside’

hardy geranium


  • © - Scott Kennedy

Outstanding Qualities

Brookside' comes to us from the Cambridge Botanic Garden. It's similar to the long-popular 'Johnson's Blue', but 'Brookside' has a much sturdier habit and better foliage. The deeply cut leaves of 'Brookside' form a rosette to about 18 inches high and wide. From June to late summer it produces deep, clear blue flowers with white throats. These rise above the leaves to about 18 inches high. Cutting back results in a second round of late summer to fall blooms, just when its red-and-gold autumn colors appear. 'Brookside' makes a good filler plant for full-sun perennial or mixed borders. Combine it with foxgloves (Digitalis), Hosta 'Golden Tiara', Bowles' golden sedge and astrantias. It's also great in a container. It is a hybrid of G. pratense and G. clarkei 'Kashmir Purple'. 'Brookside' is named for a street in Cambridge, England.

Quick Facts

Plant Type: perennial

Foliage Type: deciduous

Plant Height: 1 ft. 6 in. (0.46 meters)

Plant Width/Spread: 1 ft. 6 in. (0.46 meters)

Hardiness: USDA Zones 5 to 8

Flower Color: blue

Sun/Light Exposure: full sun

Water Requirements: regular watering during prolonged dry spells

Wildlife Associations: bees, butterflies

Colors & Combos

Great Color Contrasts: gold, silver, black

Great Color Partners: blue, white, purple

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.