Eryngium giganteum 'Silver Ghost' SEA HOLLY


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Botanical Name: Eryngium giganteum Silver Ghost
Common Name:  Sea Holly Silver Ghost
Family: Umbelliferae
Category: Hardy Biennial
Seed Count:

Eryngium giganteum Silver Ghost, Sea Holly Silver Ghost: The “giganteum” refers to the flower heads which are large, and not to the plant. E. Silver Ghost is very eye catching with its  metallic silvery-blue leaves and in summer emerge large heads of lovely lime-green flowers with blue stamens, these are backed by large and conspicuous bracts. The whole plant later developing a shining silvery hue.  Its flowers are larger than E. ‘Miss Wilmot’s Ghost’, and more silvery. It has a luminosity in the garden, and reaches its peak in late summer, it is said to be best viewed at night, in the light of the full moon. Originally discovered in Turkish beech/pine forests. Excellent cut flower. Enjoys full sun to part shade in well drained soil. 60 cm H x 45 cm W.

Sowing Advice

Sow seeds immediately you receive them at any time of the year into damp compost or seed raising mix just cover lightly with river sand or compost. Do not exclude from light. Germination is slow. After sowing seal container in a polythene bag and leave at 15-18 degrees C for 2 weeks, then place in the fridge (not freezer) for 3-6 weeks. After this period return to 15-18 degrees C. If germination does not occur in 6-10 weeks return to fridge for further 3-6 weeks. Check regularly whilst in fridge and remove immediately the seeds show signs of germinating. Pot on seedlings into 7.5cm pots when large enough to handle to harden and mature before planting out in the garden. Tricky but worth it.