If you want late-season color that supports wildlife, Solidago rugosa is a strong native choice for gardens with medium to wet soil. This upright goldenrod forms clumps of rough, wrinkled green leaves and sends up branching sprays of small yellow flowers from late summer into fall. As the season shifts, you will see the blooms become a busy landing zone for butterflies and other pollinators, while the plant stands tall at 36-60 inches.
Place it where you can give it sun most of the day, though it will also handle part shade. It performs best in average to consistently moist, well-drained soil, and it is especially useful near downspouts, low spots, or rain-garden edges where water collects after storms. Once established, it is generally low maintenance: water during prolonged dry spells, and avoid letting the soil dry out completely in midsummer heat.
Rough stems and textured foliage give this perennial a sturdy, natural look that fits well in meadow plantings, native borders, and naturalized areas. It spreads by rhizomes and can slowly expand into a broader patch over time. If you prefer a tidier footprint, you can divide the clump, edge the planting, or remove wandering shoots in spring.
Leave seed heads standing into winter if you want seasonal structure and to provide food for birds. Cut stems back in late winter or early spring before new growth begins. Solidago rugosa is typically considered moderately deer resistant, but young growth may still be sampled where browsing pressure is high.