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Caltha palustris

Marsh Marigold is a mounded, succulent perennial with large, showy, bright yellow flowers, which bloom April-June. The common name is misleading, since the flowers resemble buttercups rather than marigolds. The glossy leaves are described as having a heart or kidney shape. When ripe, the seed pods split open to disperse the seeds. As the common name suggests, this plant prefers wet, boggy soils. Use it in rain gardens, bog gardens, or shallow water margins of ponds and water gardens.

Betula populifolia

Gray Birch is a medium-sized, short-lived deciduous tree with chalky white bark. It grows best in areas where the soil is shaded, cool, and moist. Keep the shallow root system moist by using mulch and watering during dry weather. This tree can be short-lived in New Jersey. It does not tolerate heat and humidity well, and grows best in areas with cool summers. Use Gray Birch in rain gardens and other areas of the yard with moist soil conditions, or in woodland gardens.

Betula nigra

River Birch is a large deciduous tree with pinkish-brown, peeling bark, which provides year-round ornamental interest. The dark green, diamond-shaped leaves turn yellow in the fall. It prefers moist to wet soils, and tolerates periodic flooding. An adaptable tree, it will also grow in drier soils. Give this large tree with an extensive root system room to grow! Use River Birch as a specimen tree, or plant it in wet areas, such as rain gardens or along edges of ponds or streams.

Baccharis halimifolia

Migrating butterflies and other pollinators nectar on the late summer blooming flowers, and birds eat the seeds.

Asimina triloba

Pawpaw is a small understory tree or large shrub, which grows to form thickets. It has large, drooping, tropical-like leaves. Its cup-shaped, purple flowers bloom April-May, followed by large, green, edible fruits that taste like a mixture of bananas and pineapples. As the fruit ripens in the fall, it turns a brownish color. The fruit is a food source for birds and small mammals. This plant’s large, green leaves turn yellow in the fall. Pawpaw is a host plant to butterfly larvae (caterpillars), including Zebra Swallowtail (Eurytides marcellus) and Pawpaw sphinx (Dolba hyloeus). Use as shrub border or woodland edge plant, in rain gardens, along the edges of ponds or streams, or as a specimen tree in a shade garden.

Asclepias incarnata

Swamp Milkweed is a wildlife-friendly perennial. Clusters of fragrant, pink flowers bloom at the top of stems, July-August. The flowers are followed by elongated seed pods, which are used in dried flower arrangements. The flower nectar is an important food source for bees, butterflies, and hummingbirds; it has special value for native bees. Swamp Milkweed is a host plant for butterfly and moth larvae (caterpillars), including Monarch Butterfly (Danaus plexippus) and Queen (Danaus gilippus). Stems and leaves have a milky sap, which contains cardiac glycosides. When ingested by Monarch butterfly larvae feeding on the leaves, the cardiac glycosides make them (and the adult butterflies) toxic to birds and other predators. As its name suggests, Swamp Milkweed prefers wet soils, but it will tolerate well-drained soils in cultivation. Its deep tap root makes it difficult to transplant once established. Use this plant in rain gardens, along edges of ponds or streams, and in other moist areas of the yard. It can also be used in the back of borders, in meadows, and butterfly gardens.

Aronia arbutifolia

Red Chokeberry is a wildlife-friendly, multiple-stemmed deciduous shrub, featuring clusters of white to light pink flowers, which bloom in April. The flowers lead to red, showy berries, which persist in the winter; the berries are a source of food for birds in cold weather. The leaves turn bright red in the fall. The reddish-brown, exfoliating bark and the red berries both add winter interest to the yard. Red Chokeberry tolerates a variety of soils, including wet and boggy. It suckers to form colonies, making it a good choice for use as a native shrub border in your yard.

Anemone quinquefolia

Wood Anemone is a delicate, early-spring perennial. It features a whorl of deeply-cut, dark green leaves and a solitary white flower that blooms atop a 4 to 8-inch stalk, April-May. The graceful movement of the slender flower stalks in the wind led to its other common name, Wind Flower. Wood Anemone is a spring ephemeral — the plants die back in mid-summer. This plant forms colonies and makes a good spring groundcover for shady areas. It will re-seed itself; seedlings flower after 3-4 years of growth. It prefers moist to wet soil conditions. Use Wood Anemone in masses in woodland gardens or along shady edges of ponds or streams.

Alnus serrulata

Hazel Alder is a fast-growing, deciduous shrub with a tendency to form thickets. It is monoecious (separate male and female flowers appear on the same plant). The greenish male catkins and reddish female catkins bloom March-April. The female catkins are followed by woody, cone-like structures containing the seeds; the “cones” turn a maroon color in fall and persist into winter. A variety of bird species eat the seeds. Fall foliage is yellow-orange. It prefers moist to wet soils, and is flood-tolerant. It grows naturally along stream banks and swampy areas. Alder is a nitrogen-fixing species, adding nutrients to the soil. For these reasons, Hazel Alder is planted as a pioneer species for revegetating disturbed areas along streams or ponds. It can also be used in mass plantings for erosion control or to restore wetlands.

Alnus incana

Gray Alder is a small, flood-tolerant, deciduous tree. It is monoecious (separate male and female flowers bloom on the same plant). Both flowers are purple-red catkins; the female flower is followed by a woody, cone-like structure containing the seeds. Birds, such as redpolls, siskins, chickadees, and goldfinches, feed on the seeds. This tree grows fast, but is short-lived, usually not lasting beyond 40 years. It prefers moist to wet soils and is flood-tolerant. Alder is a nitrogen-fixing species, adding nutrients to the soil. For these reasons, Gray Alder is planted as a pioneer species for revegetating disturbed areas along streams or ponds. It can also be massed for a windbreak or used for erosion control.