
Globe Thistle
- Botanical Name
- Echinops ritro
- Hardiness
- Zones 3 to 8
- Height
- 3 to 4 feet
- Width
- 2 to 3 feet
- Flowers
- Summer: steel blue
- Light
- Full sun
- Soil
- Well-drained
- Planting & Care
- May need staking in fertile soils
- Propagate by seed, division or root cutting
- Globe thistle will self sow readily, lift and replant volunteer plants in spring or sow seeds for new plants in mid spring
- Divide clumps in spring or take 2-3" root cuttings from established plants
- Deadhead to prevent reseeding
- Cut plants back to basal foliage after flowering to encourage a repeat bloom
- Lower leaves of globe thistle tends to become ratting during the season, place lower growing plants in front to conceal the stems and declining foliage
- Varieties
- Taplow Blue - 2-3" steel-blue flowers, 4-5' tall
- Veitch's Blue - darker flowers than Taplow Blue, 3-3.5' tall
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