Solidago uliginosa (bog goldenrod)
 
If you have a spot in your garden that stays a little on the soggy side, Bog Goldenrod is here to save the day! Unlike its cousins that mostly prefer high and dry meadows, this elegant perennial thrives in wet, marshy soils and sunny wetlands.
 
It’s a real standout with its unbranched, smooth stems topped by narrow, wand-like plumes of bright yellow flowers from late summer into fall. It’s a vital pit stop for migrating Monarchs and late-season bees looking for a high-energy snack. Plus, it has a well-behaved, clumping habit that won't try to take over your entire yard—perfect for rain gardens or that low spot where the hose always leaks.
 
photo by Krzysztof Ziarnek, Kenraiz