Perennial of the Month-- October 2009

(moe-LIN-ee-ah  sair-U-lee-ah  subspecies air-un-di-NAA-cee-ah)  (pronunciation at link, turn up volume if too low)

Common name:  Purple Moor Grass

Family: Poaceae, grass

Height x width: 6-8ft x 2-4ft

Growth rate: moderate

Foliage: narrow 12-18" long, upright to slightly arching from large basal clump, flower scapes held much higher than foliage; yellow-orange in fall

Flowers: generally loose panicle 5-10" long; yellow, green or purple; provides airy late season interest on taller cultivars; taller than species

Hardiness: zones 4-8

Soil: average well-drained to moist, tolerates some acidity

Light: full sun, tolerates part shade south

Pests and problems: none significant

Landscape habit, uses: fine texture contrast, massed or interplanted with other perennials through which flower spikes tower late in season, along walks, good in front of dark background such as evergreen trees or hedge, or near patio where it can be seen backlit in morning or evening; can be featured as individual plants planted in mass of low groundcovers (more contrast in texture) or low ornamental grasses (less textural contrast)

Other interest: The species is native in bogs and marshes in both Europe and Asia; little winter interest but great for late summer and fall.

Other culture: low maintenance, no cutting back needed unless desired, remove/rake out old leaves in spring

Propagation: divide in spring or fall, if desired (seldom needed)

Sources:  common, many online and local perennial nurseries