Our Plantsman's 6 plant collection includes, Eryngium eburnium, Eryngium venustum, Eryngium bourgatii Picos Amethyst, Eryngium bourgatii Picos Blue, Eryngium agavifolium, and Eryngium ebracteatum poterioides. Plants supplied in 9cm pots.
Eryngium, or Sea Holly are some of the most desirable of ornamental perennial plants. Some of the species like bourgatii are colourful with their spiky blue bracts, whilst others are more architectural and statuesque such as eburnium and agavifolium. All have remarkable foliage, regardless of their flower colour. Our collection tries to give you a small taste of all these assets and the numerous species and hybrids now available.
There are about 220 species and their generic name derives from the Greek for sea holly - eryngion. Despite their thistle-like appearance they are Umbellifers - members of the carrot family. Each individual floret is rich in nectar so the prickly flowers are very popular with bees.
Eryngium agavifolium is a handsome and striking evergreen architectural perennial with rosettes of sword shaped, sharply toothed, rich green leaves. Flower heads are thistle like, with greenish-white flowers on branched stems produced during late summer. Prefers full sun with dry, well drained soil and good drainage during the winter months. Hardy. Height 1.5m, spread 1m.
Eryngium bourgatii 'Picos Blue'
Eryngium bourgatii Picos Blue is a quite sublime new variety selected by Ronald McKenzie from seed collected from plants found growing in the Picos de Europa Mountains in Northern Spain. This outstanding variety has large true blue flowers in typical sea holly style. The showy parts of the flower of Eryngium bourgatii Picos Blue are in fact foliar bracts and start appearing in early summer, opening a ghostly silver and turning blue during the summer and autumn. The blue colour infuses into the multi-flowered stems. Foliage is a very pretty, slightly spiny but variegated in appearance. Plants are hardy deciduous perennials growing to 60cm in favourable conditions, the whole plant having a silver and blue appearance by late summer.
Eryngium bourgatii 'Picos Amethyst'
Eryngium bourgatii Picos Amethyst is an oustanding new variety selected by Ronald McKenzie from seed collected from plants found growing in the Picos de Europa Mountains in Northern Spain. This variety has large violet blue flowers in a typical sea holly style. The showy parts of the flower of Eryngium bourgatii Picos Amethyst (Eryngo) are in fact foliar bracts and start appearing in early summer, opening a ghostly silver and turning blue during the summer and autumn. The blue colour infuses into the multi-flowered stems.Foliage is a very pretty, slightly spiny but variegated in appearance. Plants are hardy deciduous perennials growing to 60cm in favourable conditions, the whole plant having a silver and deep blue appearance by late summer. The true flowers of Eryngium bourgatii Picos Amethyst sea holly are adored by the bees and bumblebees.
Eryngium venustum was formerly grown by us as E. umbelliferum. It has long deeply lobed leaves an unusual feature of Ernygiums . Forms rosettes of unusual foliage that has an almost variegated appearance. Flowers are greenish-white with silvery buttons that are borne on upright stems, useful for flower arranging. Prefers full sun and well drained soil. Hardy. Height 0.5m, spread 0.5m. Supplied in a 9cm pot.
Eryngium ebracteatum poterioides
Eryngium ebracteatum poterioides is an erect, evergreen perennial with rosettes of spiny, grey-green leaves. Upright, wiry stems bear reddish-brown cone shaped flowers from summer into autumn. Good for flower arranging. Grows well in dry, poor and moderately fertile soil. Full sun. Protect from winter wet conditions. Hardy. Height 1.4 m
Eryngium eburneum is a very exotic looking Eryngium sea holly which provides excellent bold form and texture to the garden. Resembles a Yucca when not in flower as it forms the same dense clumps of neat, narrow, sword-shaped, spiny but not too painful leaves! In late spring it begins to form tall stems which carry branching heads tipped with thimble shaped clusters of white flowers. Easy to grow. Prefers full sun with moist but well drained soil. Tender in frost. Height 1.5m, spread 0.6m.