Geranium pratense Boom Chocolatta
photo of Geranium pratense 'Boom Chocolatta' courtesy of Walters Gardens

Hardy Geranium, Cranesbill

'Boom Chocolatta is a new hardy geranium with beautiful chocolate bronze foliage when grown in full sun. It is an upright variety with purple-blue blooms that are produced nearly all summer long. 'Boom Chocolatta' is an easy to grow perennial that is deer and rabbit resistant. Preferring full to part sun, this pollinator friendly perennial will be a great choice for borders, mass planting, and container designs.

  • Height: 60-66 cm (24-26 in)
  • Spread: 71-76 cm (28-30 in)
  • Cold Hardiness: Zone 4-8
  • Sun or Shade: full sun to part shade (minimum 4 hrs direct sun)
  • Bloom Time: full sun to part shade
  • Leaf Colour: chocolate bronze
  • Bloom Colour: purple blue
  • Critter Resistance: deer and rabbits
  • Nature Attraction: bees

Growing and Maintenance Tips

Geranium 'Boom Chocolatta' is easy to grow in almost any type of well-drained soil. It is reported to be more tolerant of alkaline soil than the other species. Plants should be sited in full sun or partial shade for best flowering performance. After blooming, plants can be cut back hard to encourage a flush of new growth and to prevent self-seeding. This species is able to tolerate short periods of dry soil once it is well-established. It requires minimal care and is generally not bothered by insects or diseases.