Scientific Name (Genus/Species): Hibiscus moscheutos subsp. palustris Pink

Family: (Malvaceae)

(P) to 7′. Swamp Rose Mallow. Eastern US. It is hard to believe this robust, lush-foliaged plant with incredible saucer-sized, rose-pink, crepe-paper blooms is in fact a hardy native. Late to emerge in spring, but once they do, they grow quickly and so require a moist fertile soil to really thrive – the edge of a pond or marsh, rich in organic matter is ideal. Late summer bloomer. 1 & 2B, then 3 & T2

Scientific Name (Genus/Species): Verbena hastata

Family: (Verbenaceae)

(P) to 5′.  Simpler’s Joy.  Eastern North America.  Tall, erect stems with a branched inflorescence of tiny, tubular, purplish pink blooms in dense terminal panicles.  The lance-shaped, toothed foliage is rough textured and somewhat coarse in appearance, making this a better candidate for informal plantings.  Blooms July to September.  Sun.  Moist soil.  Sun.  3, D & T2

Scientific Name (Genus/Species): Eupatorium hyssopifolium

Family: (Asteraceae)

(P) to 3′.  Hyssop-leaf Thoroughwort.  A plant of sandy soils and coastal areas from New England to Florida.  Large, flat-topped inflorescences of white flowers up to one foot across.  Fine textured foliage of narrow, whorled, grey-green leaves.  Easy and a good late summer bloomer.  Well-drained soil.  Sun.  4 & T2

Scientific Name (Genus/Species): Oenothera elata subsp. hirsutissima

Family: (Onagraceae)

(P) to 4′.  Hairy Evening Primrose.  Western North America.  From a basal rosette of leaves, reddish flowering stalks arch up and have grey-green, lance-like, hairy leaves with white veins. The unbranched inflorescence bear flowers that open from the bottom up. The beautiful two-to four-inch-wide fragrant, yellow flowers open about an hour before sunset and wither the next morning.  Each flower has four large, heart-shaped petals, four smaller sepals that appear fused in pairs, and a prominent X-shaped stigma that extends out beyond the petals and eight stamens. Pollinated particularly by Hawk or Sphinx Moths during the night. Sun.  3 & T2

Scientific Name (Genus/Species): Echinacea pallida

Family: (Asteraceae)

(P) to 3′.  Central and eastern United States.  An ethereal form of the Purple Coneflower with thinner, languid, elongated petals of the softest pale pink.  Sun.  4 & T2

Scientific Name (Genus/Species): Agastache nepetoides

Family: (Lamiaceae)

(P) to 5′.  Yellow Giant Hyssop.  South Canada to Southeast US.  Whorls of tiny, greenish-yellow flowers closely packed into five-inch terminal spikes appear on stiff, square stems. Toothed, arrowhead-shaped leaves are up to five inches long. Whilst the leaves lack the strong smell like other species in the mint family, the bitterness of its leaves make it deer resistant.  Tolerant of summer heat and humidity, this late summer bloomer is a favourite of bees, butterflies, and other pollinators.  Grows best in rich, open woodlands. Sun/partial shade.  4 & T2

Scientific Name (Genus/Species): Eupatorium fistulosum

Family: (Asteraceae)

(P) to 8′.  Hollow-stemmed Joe Pye Weed.  A tall, striking addition to the late summer border.  Fluffy, rounded domes of pinkish mauve to soft purple flowers.  Leaves whorl in groups of six to seven around the unspotted, hollow stem.  A great butterfly plant.  Moist soil.  Sun/partial shade.  4 & T2

Scientific Name (Genus/Species): Penstemon hirsutus

Family: (Plantaginaceae)

(P) to 2′.  Hairy Beard-Tongue.  A very hardy Penstemon that is native to eastern North America.  Lovely, dusky, pale purple flowers with white lobes add a subtle presence to the spring garden.  Leaves are lanceolate and acute.  Both leaves and stems are covered by very fine hairs.  Sun/partial shade. 3 & 6 & T1

Scientific Name (Genus/Species): Centaurea phrygia

Family: Asteraceae

(P) to 4′.  Wig Knapweed.  Europe – meadows, field margins and open woods.  A sparsely hairy to roughly textured perennial that combines well with informal plantings of ornamental grasses.  The purplish lilac flowers have long, obliquely funnel-shaped, deeply divided, upward sweeping, outer ray florets; the central disc florets are smaller and tubular.  Leaves are alternate, short-stalked and broadly lanceolate, with a regularly toothed margin.  Sun.  3 & T2

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Scientific Name (Genus/Species): Solidago rugosa

Family: (Asteraceae)

P to 5′.  Wrinkleleaf Goldenrod.  Central and eastern North America.  This clump-forming plant has numerous, narrow, deeply toothed, dark green leaves with a wrinkled appearance to the upper surface. Tall, rough, hairy stems bear arching branches with panicles of small, light yellow flowerheads concentrated on the upper side.  Physicians in ancient times believed that goldenrod had healing powers; in recent times these plants have been commonly blamed for causing hay fever, but its irritating symptoms are actually caused by ragweed (Ambrosia species), whose pollen is abundant when goldenrod is in flower. All parts of this plant are useful in the native ecosystem, from the nectar and pollen of the flowers, to the foliage and seeds, even to the roots that act as a soil stabilizer.  Blooms July to October.  A “must have” for the wildflower garden.  Sun.  4 & T2