Catherine Renzi
Yellow Springs Farm Native Plant Nursery
As published in Wild Bird Center Newsletter December,
2004 Exton PA
In selecting plantings for your gardens,
I always suggest species that have attractive qualities in more than
one season. Fall color is something I look forward to each year, but
wish it were more quickly followed by spring. I would like to suggest
two plants, one flowering perennial and one tree, that are spectacular
in Fall, but have outstanding winter interest, too.
A sure sign of Fall is the Goldenrods’ (Solidago spp.) glorious sprays
of yellow flowers covering grassy meadows and roadsides. For those
who prefer warm Fall reds, a favorite is the brilliant crimson foliage
of the Staghorn Sumac tree (Rhus typhina.)
Despite the common perception that Goldenrods irritate allergies, it
is a myth. The Goldenrord is insect- pollinated, while allergy symptoms
are more often caused by plants that produce airborne pollen carried
by wind. Ragweed (Ambrosia spp.) blooms when Goldenrod does, and grows
in similar sites, therefore the source of the seasonally annoying airborne
Ragweed pollen, is mistakenly thought to be Goldenrod.
There are about 60 species of native Goldenrod found in the East Coast
of the United States. Some grow tall, some are ground covers, but all
produce the characteristic yellow flowers in late summer and fall.
As the seeds ripen in Fall, they are a food source for Tufted Titmouse,
American Goldfinches, and Black-capped Chickadees. After the frost,
the Goldenrods continue to have great value to birds because of the
galls formed on the stems.
The Goldenrod stem galls start in summer when parasitic flies, harmless
to humans, lay eggs. The larvae hatch over the winter and burrow in
the stem to hibernate. This causes a fleshy gall to form. Downy Woodpeckers
and Black-capped Chickadees are opportunistic and readily fed on the
insect larvae hiding in the galls. These dormant, drying stems wave
in the breeze and provide interesting texture for winter meadows.
Staghorn Sumac is gaining popularity with home gardeners because of
its modest size, tolerance for sunny, dry sites with poor soils, and
exceptional fall color. Mature trees can reach 15-20 feet tall, but
in poorer soils might remain large shrubs, only 6-8 feet tall. The
red fruit clusters on the Sumac form in summer, but are too sour for
humans’ taste. They are not a preferred food source even for birds
when the selection of edibles is vast. Birds usually prefer Hawthorn
fruit, Arrowwood Viburnum and Grey Dogwood berries in fall. Then, the
Sumac fruit dries in attractive cone-shaped clusters called “bobs.”
As winter sets in, the dried clusters add interest to the dreary landscape
and become an important food source for birds such as American Robins,
Eastern Bluebirds, Cardinals, Red-eyed Vireo, Thrushes, Catbirds, and
Dark-eyed Juncos. Check to see which of these species overwinter in
Pa vs. migrates
Both Goldenrod and Staghorn Sumac offer aesthetic features and important
food sources for birds all winter long. When plants are dormant during
winter, it is especially nice to see birds foraging and flitting outside
the window, reminding me that nature is alive and well even though
spring is months away.




