Festuca valesiaca Glaucantha

Festuca valesiaca Glaucantha, also known as Glaucous Wallis Fescue, is an elegant small perennial grass that is evergreen and originates from the Swiss Alps. It forms a rounded, grassy clump that spreads out in summer, with a very bright grey-green to silvery-blue hue. Its numerous silver-green spikes with purple highlights bloom from spring to summer, depending on the climate, above very fine foliage before turning blonde. This species, which prefers poor, well-drained soils, is very hardy and drought-tolerant once established. A lightweight plant that is easy to match and grow, perfect for difficult areas, in pots, as ground cover, in rockeries, borders or at the front of flower beds.

Festuca valesiaca is from the poaceae family, native to Europe, Asia Minor, and the Caucasus. It can be found in nature growing in dry meadows, steppe meadows, and pine forests in the Alps, Eastern Central Plateau, and hilly to subalpine areas. It prefers poor, sandy, and stony soils, generally rich in limestone.

The Glaucantha variety is distinguished by its bluer foliage. It is a pretty tufted plant with a rounded and very dense habit, slowly colonizing the ground through its short rhizomes. As an adult, it reaches a height of 20cm (8in), with a width of 25 to 30cm (10 to 12in), and has a fairly rapid growth rate. Its evergreen leaves are very thin, thread-like, and rough, with a very blue colour that becomes silvery over time. They measure 0.3 to 1mm (1in) in diameter, have a stiff appearance, and a prickly texture. Between May and July, bright, almost silvery spikelets appear above the foliage in panicles. The seeds are formed in late summer and are dispersed by the wind, ensuring the species' longevity in gardens and in nature.

Very hardy, even beyond -15°C (5°F), the Festuca valesiaca Glaucantha is a plant accustomed to harsh climates, perfect for gardens that experience cold winters and rather dry summers. It thrives in areas with poor, well-drained soil and in sunny locations. It can be used as ground cover, in low flower beds, borders, or even in rockeries by planting several spaced plants to punctuate a space or mass planting to create a thick, dense carpet. It creates beautiful contrasts with green fescues, blonde stipes, wildflowers, and remains decorative throughout the year. In a very contemporary style, you can create small scenes by placing light or coloured gravel, sand, or even pumice around your Fescue cushions. This will also limit the proliferation of weeds. Plant it alongside spring bulbs so that it will not suffocate but will hide their yellowed foliage in summer. This plant tolerates wind and salt spray quite well.