Geranium Sanguineum – Hardy Perennial with Brilliant Color
Geranium Sanguineum, commonly known as Blood Cranesbill, is a hardy, low-maintenance perennial valued for its vivid magenta-pink blooms and finely divided, attractive foliage. This species of hardy geranium thrives in full sun to partial shade and tolerates a wide range of soil conditions, from rocky slopes to well-prepared garden beds. Its spreading, mounded growth habit creates a soft, natural look that fits seamlessly into cottage gardens, pollinator beds, and mixed borders. Throughout late spring and summer, the plant produces a profusion of five-petaled blooms that attract bees and beneficial insects while requiring very little care from the gardener.
Applications in the Garden
Ideal for borders, cottage gardens, and naturalized areas
Excellent groundcover for filling spaces and suppressing weeds
Works well in rock gardens due to its drought tolerance
Great for edging walkways and patios
Pairs beautifully with salvia, catmint, and ornamental grasses
Suitable for pollinator-friendly plantings
Planting Tips - Geranium Sanguineum
Choose full sun to partial shade for best flowering
Plant in well-drained soil; this species tolerates rocky or sandy soils
Space plants 12–18 inches apart to allow spreading
Water regularly after planting, then reduce once established
Deadhead spent blooms to encourage extended flowering
Cut back lightly after the first flush to promote fresh foliage
Plant Biography and Growing Environment
| Botanical Name: | Geranium Sanguineum |
| Variety Name: | Sanguineum |
| Height: | 16″ |
| Hardiness Zone: | 3-9 |
| Sun or Shade: | Full sun or part shade |
| Plant Classification: | Perennial |
| Planting Season: | Spring |
| Bloom Season: | Summer – Fall |
| Bloom Cycle: | Continuous |
| Bloom Duration: | 2-3 months |
| Planting Depth: | 2″-3″ |
| Soil Requirements: | well-draining soil with medium moisture |
| Water Requirements: | Average |
Troubleshooting - Geranium Sanguineum
Sparse blooming: Often due to insufficient sun; relocate to a brighter spot
Yellowing leaves: Usually from waterlogged soil; improve drainage and reduce watering
Floppy growth: Happens in too much shade; provide sturdier neighboring plants or move to sunnier conditions
Powdery mildew: Increase airflow and avoid overhead watering
Slow spread: Normal in poor soil; amend with organic matter to boost vigor
FAQ - Geranium Sanguineum
Q: Is Geranium Sanguineum invasive?
A: No, it spreads slowly and predictably, making it a manageable option for most gardens.
Q: How tall does Geranium Sanguineum grow?
A: It typically reaches 9–12 inches tall and spreads 12–24 inches wide.
Q: Does Geranium Sanguineum attract pollinators?
A: Yes, it’s highly attractive to bees, hoverflies, and other beneficial insects.
Q: Is Geranium Sanguineum deer-resistant?
A: It is considered moderately deer-resistant, though extreme browsing pressure may still affect it.