 | Echinops bannaticus
'Taplow Blue'
Echinops, Globe Thistle |
| Herbaceous Flowers, Spikey | Blue-silver flowers (Summer), Dark Green foliage |
 | Eryngium bourgatii
Sea Holly, Eryngium |
| Herbaceous Flowers, Container-friendly, Spikey | Blue-silver flowers (Summer), Blue foliage |
 | Eryngium giganteum
'Silver Ghost'
Sea Holly, Eryngium |
| Herbaceous Flowers, Container-friendly, Spikey | Blue-silver flowers (Summer), Blue foliage |
 | Eryngium bougatti
'Picos Blue'
Eryngium |
| Herbaceous Flowers, Upright - Clump | Blue-silver flowers (Summer), Blue foliage |
 | Eryngium giganteum
Eryngium |
| Herbaceous Flowers, Container-friendly, Spikey | Blue-silver flowers (Summer), Blue foliage |
 | Eryngium variifolium
Compact Sea Holly |
| Herbaceous Flowers, Ground cover, Spreading clump | Non-flowering, Dark Green foliage |