These articles are written to apply to the northeastern
corner of Illinois. Problems and timing may not apply outside of this
area. |
Ornamental Grasses at Peak in Fall
October 26, 2000
One of the notable showy groups of landscape plants conspicuous in fall
is the ornamental grasses. Many will remain showy into the winter months.
Now is an excellent time to observe many ornamental grasses in their prime.
This can help plan future landscape plantings.
Most native ornamental grasses have outstanding characteristics in fall.
Both Little and Big Bluestem are prime examples. Little bluestem (Schizachyrium
scoparium) features erect clumps of arching reddish-brown fall color.
Big bluestem (Andropogon gerardii) is a much taller species, which
grows in upright, open clumps of arching foliage with "turkey-foot"
seedheads.
Indian grass (Sorghastrun nutans) is another showy native perennial
ornamental grass in fall. The tall, medium textured blue-green foliage
of summer has turned to bronze. Likewise, side oats grama (Bouteloua
curtipendula) is an interesting native species featuring narrow, erect
seedstalks with a single row of florets.
Probably the largest group of ornamental grasses used in landscapes is
the Miscanthus sinensis, or Chinese silvergrass species, which
includes many cultivars. Most appear now as tall, arching clumps with
showy seedheads that will hang on for some time. Some of the popular cultivars
include 'Morning Light', 'Strictus' (banded foliage), 'Purpurascens' (excellent
reddish color in fall), 'Siberfedher' (white seedheads in fall), 'Variegatus',
and 'Zebrinus' (banded foliage). 'Gracillimus' is also an excellent specimen
but rarely produces seedheads.
Very showy seedheads in large numbers are a prime feature of northern
sea oats (Chasmanthium latifolium) in fall and winter. The seedheads
are flat and are good for cut flower arrangements. Northern sea oats will
grow in partial shade and looks good near water.
Finally, a very popular ornamental grass is feather reed grass, or Calamagrostis
x acutiflora 'Karl Foerster'. Strong, upright clumps with of bronze
flowers are visible now and will last throughout the winter. This grass
is used considerably in the industry. Fall is an excellent time to view grasses, either in your own yard or
in other locations. If considering ornamental grasses for future plantings
in your yard, now is the time to see their best features in living color. |