Rosa palustris aka Swamp Rose

Rosa palustris, or swamp rose, belongs to the rose family. This deciduous shrub grows wild in eastern North America. Its range runs from Nova Scotia west to Minnesota. It extends south to Florida and Louisiana. It grows in marshes, swamps, ditches, and along stream banks. In Missouri, it occurs in wet woods and southeastern swamps. It also grows beside rivers and ponds in Illinois.

In gardens, it reaches 3–6 feet (0.91–1.83 metres) tall and wide. Its upright stems bear branches that bend in arches. The stems have a red tint and curved prickles. Leaves grow in an alternate pattern along the stems. Each pinnate leaf most often has seven green leaflets. Some have five, while nine is rare. The broad, oval leaflets have fine teeth along their edges. Each leaflet narrows to a point at both ends. The leaves often turn red before they fall.

The pink flowers have a scent and yellow centres. Each bloom grows alone and measures about 0.17 feet (0.05 metres) across. Flowering starts in late spring and continues into early summer. Chicago Botanic Garden lists bloom months from May through August. Bees, butterflies, and other insects visit the flowers. Small red hips follow, with a display in September and October. Songbirds, quail, and wild turkeys eat these fruits. The shrub gives wildlife cover throughout the year. Native bees also nest inside its dead, hollow stems.

Give swamp rose full sun and acid soil rich in organic matter. It accepts some shade, but sun improves flowering and disease resistance. It suits moist ground and boggy sites with poor drainage. Brief floods do not harm it, but standing water prevents growth. Sources place it in USDA zones 4–9, with Chicago listing 5–8. Allow air to move freely through the branches. Prune where needed in late winter. For nesting bees, leave dead stems 1–2 feet (0.30–0.61 metres) high.

Swamp rose spreads slowly through suckers and can form colonies. Leave room for this spread when choosing a planting site. It fits rain gardens, native borders, and butterfly gardens. Plant it beside ponds, streams, or the edges of bogs. Its flowers, fall leaves, and red hips provide seasonal interest. NC State reports no major pest or disease problems. Missouri Botanical Garden also notes resistance compared with many hybrid roses. Its prickles remain a concern when handling or pruning it.