Brachypodium sylvaticum aka False Brome

Brachypodium sylvaticum is a perennial grass in the Poaceae family. Common names include false brome and wood false brome. Its native range spans Macaronesia, Eritrea and Eurasia. It is native to Britain and Ireland, too. This grass grows in temperate climates and keeps some winter leaves. Loose tufts and arching stems give it a soft outline.

Garden plants reach about 1.6–3.3 feet [0.5–1 m] tall. Clumps spread to about 1.6 feet [0.5 m] across. They reach full size within one to two years. The slender leaves are bright green and feel soft and hairy. Each can reach about 1 foot [0.3 m] long. Leaf width reaches about 0.03 feet [0.01 m]. The leaves stay green for much of the year. They may turn yellow in autumn or during colder months. Slender stems bend outward and droop above the clump.

Nodding flower spikes rise above the leaves on thin stems. The RHS gives June to September as the flowering season. Missouri Botanical Garden lists July to October. Flowers are yellow-green, while the spikelets range from pale green to light brown. The floral display is subtle rather than bold. Together, the leaves and flower stems give the plant a light texture.

The RHS recommends soil rich in humus and light, dappled shade. It also lists full shade as a suitable position. Missouri Botanical Garden gives a wider range, from full sun to partial shade. Keep the soil moist but allow excess water to drain. Clay, loam and sand can all suit this grass. The RHS lists acid or neutral soil and a sheltered site. It rates the plant H6 for UK hardiness. Missouri Botanical Garden lists USDA zones 5–9 and moderate water needs. Sow seed in containers in a cold frame during spring. Spring is also the time to divide clumps.

Within its native range, this grass can serve as ground cover. The RHS suggests wildflower meadows and gardens for wildlife. Its spread needs care outside that range. Missouri Botanical Garden describes it as aggressive and invasive. It advises against planting it beyond its native range. This risk matters more than its few pest problems. Both garden sources report little trouble from insects or disease. Missouri Botanical Garden rates its maintenance needs as medium.