Moisture retentive soil
Well drained soil
A stately perennial, with rosettes of green heart shaped basal leaves exploding into tall umbels of large green flowers maturing to silver
The large cone thistle flower heads of this plant are green and white in colour, and produce plenty of nectar for bees. The flower stalks are very tall with the spiny, exotic Agave-like foliage....
This Sea Holly has a slightly different inflorescence in that it is very spiny and it is silver while the thistle flower is cream.
The flower heads on this variety of Sea Holly are some of the biggest and most distinctive. The bracts around the thistle flower become an incredible blue along with the flower stems, and contrast ...
Producing a cloud of blooms, each with a steely blue central cone encircled with pointed silvery bracts on blue multi-branched stems, its striking display lasts from mid to late summer.
A new and totally unique introduction of Sea Holly - the foliage of this Eryngium is a brilliant golden colour , it will become lime green if slightly shady. The flower spikes, stems and flower bracts