Geranium cantabrigiense 'Karmina' is a low growing mat forming perennial prized for its soft mounds of aromatic foliage and vivid magenta pink flowers that appear in early summer. Its semi evergreen leaves turn bronze red in fall adding multi season interest. Unlike many geraniums, 'Karmina' spreads by rhizomes and can knit together well in shady or partly sunny garden spaces suppressing weeds with its dense foliage. Crushed leaves release a pleasant spicy fragrance that adds sensory appeal to the garden.
Height & Spread: 8 - 12 in x 18 - 24 in
Bloom Time: Late spring to early summer
Light Requirements: Full sun to part shade
Soil Preference: Well drained soil, tolerates a range of soil types
Watering Needs: Low to moderate; prefers occasional deep watering
Deer Resistance: Deer and rabbit resistant due to aromatic foliage
Native Status
This hybrid cultivar originates from a cross between species native to Europe and Asia. It is not native to North America but is widely cultivated for ornamental use.
WILDLIFE & INSECTS
Butterflies
- Flowers are visited by small butterflies such as Spring Azures and skippers for nectar during peak bloom.
Bees
- Supports native solitary bees and bumblebees that forage on its open flowers for pollen and nectar.
Moths
- Occasionally attracts day flying moths like the Chickweed Geometer and other low growing species in semi shaded habitats.
Beneficial Insects
- Its dense foliage provides shelter for ground beetles and predatory insects that assist with pest control.
Spacing & Landscape Use
Spacing Recommendations:
- Space plants 18 - 24 in apart to allow for spreading growth and full mat coverage.
Landscape Placement:
- Excellent as an edging plant, ground cover in mixed perennial borders, or underplanting for taller perennials and shrubs. Useful on slopes or woodland margins for erosion control and color.
Companion Plants
- Hosta 'Blue Angel' - Adds bold textured foliage and thrives in similar light and soil conditions offering contrasting leaf shape and color.
- Heuchera villosa 'Autumn Bride' - Offers large fuzzy lime green leaves that brighten shaded areas and echo the soft texture of geranium foliage.
- Brunnera macrophylla 'Jack Frost' - Brightens partial shade with silvery foliage and forget me not like spring blooms that complement Geranium's flower color.
- Polygonatum odoratum 'Variegatum' - Provides arching form and white edged foliage that adds vertical texture behind the mounding geraniums.
- Dryopteris erythrosora (Autumn Fern) - Contributes coppery new fronds in spring and structural contrast in shaded combinations.