There just aren’t that many red and orange flowers native to the Maryland Piedmont, and I’ve only seen three of them. That makes me a little sad.
Campsis radicans (trumpet creeper; Bignoniaceae)
This herald of summer, with four-inch flowers on vines up to forty feet long, starts blooming in mid or late June and can go through early August. Look for it climbing up and along boulders and tree snags in open areas.
Lobelia cardinalis (cardinal flower; Campanulaceae)
This plant is a real showstopper, with clusters of lurid red flowers atop stems up to four feet tall. Look for it growing in very wet places, like right on river banks. It blooms from mid August into September.
Impatiens capensis (jewelweed; Balsaminaceae)
Look for the rather large yet wispy plants growing in wet places, like small seasonal streams. They bloom on and off from late spring until late summer.
Here are links to some of the other red and orange blooming species in this area:
Asclepias tuberosa (butterfly weed) Beloved of gardeners everywhere. Great pollinator plant.
Lonicera sempervirens (trumpet honeysuckle) There are just a few records of this in the Piedmont; mostly it’s a plant of the Coastal Plain.
Aquilegia canadensis (wild columbine)
Lilium superbum (Turk’s cap lily)
Impatiens species; Balsaminaceae
aka spotted jewelweed, spotted touch-me-not
aka pale or yellow jewelweed, pale or yellow touch-me-not
Of the five native North American Impatiens species, three are found in the Pacific Northwest, while I. pallida is a more eastern species and I. capensis is found almost everywhere except California and the drier states of the West. The former species is listed as “special concern” in Maine; otherwise there are no conservation issues with either.
Impatiens pallida and Impatiens capensis are almost identical; the only significant differences are the flower color and position of the nectar tube (sadly, I was unable to get close enough to any blooming I. pallida for a clear illustration of this).
Both plants grow to 5 feet tall, preferring wet soils. You can find I. capensis along the edges of small streams and the banks of the C&O Canal. I. pallida is less common in the Potomac Gorge, though I did see a few plants just outside Washington, DC. There are huge stands of it lining the canal at Snyder’s Landing, near Sharpsburg.
Snyder’s Landing, by the way, is a great place to hunt for ferns. More on that another time.