Looking for a native wildflower that’s tall, showy, and a great choice for attracting wildlife, especially butterflies and bees? Then check out Wild Senna (Senna hebecarpa).
Wild Senna currently blooming in a roadside wildflower garden on Pennsylvania State Game Lands.
Wild Senna, also known as American Senna, is a host plant for the larvae of Cloudless Sulphur and Sleepy Orange (Eurema nicippe) butterflies. It thrives in almost any moist, well-drained soil in habitats including open woodlands, forest edges, meadows, and gardens like yours. Its height at flowering ranges from three to six feet. If you prefer, this perennial wildflower can even be cultivated as a shrub-like form. It is easily grown from seed, which is available from Ernst Conservation Seeds of Meadville, Pennsylvania, as well as numerous other vendors. And don’t forget to give Wild Senna’s two close relatives, Partridge Pea and Maryland Senna, a try as well. They attract the same species of butterflies and are just as easy to grow. You’ll like ’em.
Cloudless Sulphur butterflies from populations in the south colonize the Lower Susquehanna River Watershed each summer in varying numbers.Close-up view of a Wild Senna flower cluster. Typical of members of the pea family, the seeds of all native Senna species develop within pods after blooming and are sought after by wildfowl (Galliformes), particularly Northern Bobwhite.Partridge Pea with flowers and seed pods in the susquehannawildlife.net garden. Smaller than the other Senna species, Partridge Pea reaches a height of just two to three feet.
A special message from your local Chinese Mantis (Tenodera sinensis).
Hey you! Yes, you. I pray you’re paying attention to what’s flying around out there, otherwise it’ll all pass you by.
This summer’s hot humid breezes from the south have not only carried swarms of dragonflies into the lower Susquehanna valley, but butterflies too.
So check out these extravagant visitors from south of the Mason-Dixon Line—before my appetite gets the better of me.
In some years, the Sachem, a vagrant from the south, can become the most frequently observed orange skipper in the Susquehanna valley, far outnumbering faltering populations of resident species around lawns, gardens, meadows, and roadsides. 2020 appears to be one of those years.The Fiery Skipper (Hylephila phyleus) sometimes strays north along the lower Susquehanna River in late summer. This one was photographed recently at Conewago Falls.The Cloudless Sulphur is a large fast-flying brilliant yellow butterfly. Here in the Susquehanna valley, it is usually seen singly, though colonizers will breed in patches of Partridge Pea, Wild Senna (Senna hebecarpa), and Maryland Senna (Senna marilandica). Cloudless Sulphurs are really widespread this year. In areas where intensive farming practices are in use, your chances of seeing one of these wandering around right now might be just as good as your chances of seeing one of the diminished flights of the resident Clouded Sulphurs (Colias philodice) and Orange Sulphurs (Colias eurytheme).The Red-banded Hairstreak (Calycopis cecrops) is the least conspicuous of the stray butterflies shown here. This beauty was photographed several days ago along the edge of an oak forest in northern Lancaster County, PA.
There you have it. Get out there and have a look around. These species won’t be active much longer. In just a matter of weeks, our migratory butterflies, including Monarchs, will be heading south and our visiting strays will either follow their lead or risk succumbing to frosty weather.
For more photographs of butterflies, be sure to click the “Butterflies” tab at the top of the page. We’re adding more as we get them.
