Silvery, scintillating inflorescences
Native to the mountain slopes of South-East Asia (Japan, Korea, China and Siberia) Spodiopogon sibiricus (frost grass, Siberian greybeard or silver spike) is a highly decorative grass: 80 cm to 100 cm in height, 120 cm to 160 cm with the erect spikes of broad leaves and bouquets of inflorescences.
Grown in full sun, this grass has superb ruby-red autumnal colouring.
In the garden, we like to grow Spodiopogon sibiricus as a specimen plant in a bed together with purple-red flowering perennials to make colour matches: Echinacea purpurea 'Magnus Superior', Eupatorium, Vernonia crinita, Veronicastrum 'Fascination'.
You can also plant it en masse to create a good transition as edging under trees.
Grow in ordinary soil that is not too dry, in the sun or light shade; in partial shade this Siberian greybeard may spread and droop too much.
In warm climates, however; it is preferable to plant this grass in partial shade. Hardiness: -25°C
Maintenance: cut back the clumps to 10 cm at the end of winter.
Bibliographical reference: The Encyclopedia of Grasses for Livable Landscapes, Rick Darke. http://www.rickdarke.com/books.htm
Autumnal colouring of Spodiopogon sibiricus