Plant this...Not that

Classic Miscanthus form with plume-like seedheads. (Image: James H. Miller, USDA Forest Service)

Miscanthus

Miscanthus sinensis

Not That!

Information by Art Gover

Alternative

Consider Little Bluestem.

Abstract

Do not plant Miscanthus (AKA Chinese silvergrass, plumegrass). If you have it and enjoy its aesthetics, replace it with native prairie grasses such as switchgrass, big bluestem, or indiangrass. These native grasses provide the same striking stature, wispy inflorescences, fall color, and winter cover, but also provide food and shelter for the native insects they evolved with.

Miscanthus cultivars feature different forms, sizes, and foliage color. This “picta” variegated cultivar is very common. (Image: Les Mehrhoff, University of Connecticut)

Description

Miscanthus (Miscanthus sinensis) is a perennial, warm-season, bunch-type grass native to East Asia. When grown alone, it has a distinct vase shape and silvery plume-like seedheads that rise above the foliage. The foliage is annual and dies back to the ground each winter. The foliage is also persistent, and unless cut or burned, remains standing until obscured by the new growth.

Miscanthus infestation behind a highway guardrail. (Image: Chris Evans, University of Illinois)

Natural History

Miscanthus is common in Asia and often occurs in managed grasslands, as well as roadsides and other non-managed spots where it can grow without harassment. It was introduced as an ornamental in the late 19th century.

It is available in many cultivars of different heights, foliage colors, and variegation. Although distinct cultivars may be propagated vegetatively, the plants eventually bear viable seed either in the nursery or in the landscape. The “wild type” plants arising from this seed are likely to be prolific seed producers.

A dense stand of Miscanthus flourishing under the sunlight. (Image: Deco grasses)

Why You Should Not Plant This

Miscanthus provides durable cover and does have distinct ornamental qualities. However, pretty plants that are not food for bugs do not feed the birds. Miscanthus is extremely persistent, and removal is challenging. The rhizomes and primary roots are very hard to sever with a shovel. Exhumed root balls can continue to sprout for months or years. If Miscanthus seeds into native grass areas, it is extremely difficult to selectively remove.