Scientific Name (Genus/Species): Papaver atlanticum

Family: (Papaveraceae)

(P) to 2′.  Moroccan Poppy.  Soft orange, two-inch, single, tissue paper blooms with yellow anthers are followed by club-shaped pods.  Pale green, silken, jagged basal leaves.  Self-sows beautifully.  Sun.  4, D & T2

Scientific Name (Genus/Species): Crambe maritima

Family: (Brassicaceae)

(P) to 2′.  Sea Kale.  Coastal North Europe, Baltic and Black Seas.  Often grown as a vegetable, however, we like it in the mixed border.  The early emerging foliage is flushed deep purple; this is the edible stage.  The unfurled leaves are wide, wavy, lobed, and glaucous providing an attractive foil  for the large panicles of honey-scented, white, four-petalled flowers.  Long summer bloomer.  Well-drained soil.  Sun.  3 & T2

Scientific Name (Genus/Species): Yucca smalliana

Family: (Asparagaceae)

(P) to 4′.  Bear Grass Yucca. Southern North America.  This Yucca is similar in many ways to the more popular Adam’s Needle (Yucca filamentosa), however smaller in stature.  Also, the leaves are finer, flatter, and narrower with smoother leaf margins, except for the occasional thread-like fibres.  The flowers are opalescent white and may at times have a light pink-tinge.  Yuccas will form a small colony over time from basal offsets.  Well-drained soil.  Sun.  3 & T2

Scientific Name (Genus/Species): Hesperis matronalis 'Alba'

Family: (Brassicaceae)

(B/P) to 3′.  A delicate white form of the Dame’s Rocket.  Four-petalled flowers in racemes bloom in early summer then sporadically until frost.  Lightly scented at night.  This plant is crucial to the white garden.  Sun/partial shade.  4 & T3

Scientific Name (Genus/Species): Dianthus carthusianorum

Family: (Caryophyllaceae)

(P) to 2′.  Cluster-head Pink.  Native to sunny hillsides and dry meadows throughout central and southern Europe.  Dianthus carthusianorum was named to commemorate the monks of the Carthusian order, founded in the 11th century in the Chartreuse Valley in the French Alps.  Dense, terminal clusters of five-petalled, toothed, pinkish purple flowers on slender, airy stems.  Grassy clumps of narrow, pale grey-green foliage adds to the charm.  Blooms in midsummer.  Well-drained soil.  Sun.  4 & T2

Scientific Name (Genus/Species): Amsonia elliptica

Family: (Apocynaceae)

(P) to 18″.  Dwarf Oriental Blue-Star.  China, Japan, and Korea.  Amsonia elliptica makes a bushy mound of tight-clumped, upright stems topped with starry, five-petalled, porcelain-blue flowers in early June. The glossy green, broad, grass-like leaves make an excellent backdrop for other garden plants during the summer.  In fall the foliage turns a glowing yellow to orange.  A great Amsonia for the small garden with a good display of flowers and excellent autumn colour.  Sun/partial shade.  3, 7 for 4 weeks, then T2

Scientific Name (Genus/Species): Veronicastrum virginicum

Family: Plantaginaceae

(P) to 6′.  Bowman’s Root.  Northeast America.  A beautiful plant adorned with eight-inch long spikes of tiny, blue, tubular flowers.  At the base of each central spike exists a second whorl of smaller flower spikes.  This plant makes an exotic and very architectural statement in the garden.  Midsummer.  Sun.  4 & T2

Scientific Name (Genus/Species): Digitalis grandiflora

Family: Plantaginaceae

(P) to 3′.  Yellow Foxglove.  Central Europe to Turkey and Siberia.  Showy spikes of two-inch, tubular, soft yellow, open bells have speckled brown throats.  Leafy stems from a basal rosette of dark green, finely-toothed leaves are attractive too. Blooms late spring to early summer. A lovely addition to the garden.  Sun to partial shade.  4 & T2

Scientific Name (Genus/Species): Aristolochia clematitis

Family: Aristolochiaceae

(P) to 30″.  This non-climbing herbaceous Dutchman’s Pipe has small apetalous, tubular, greenish yellow flowers that bloom from late spring to early summer in clusters from the leaf axils. Each flower has a straight funnel-shaped tube with pointed, curved upper lips (considerably different in appearance from the curved Dutchman’s smoking pipe-type blooms found on some other species in the genus).  Full sun to part shade.  4 & T3

Scientific Name (Genus/Species): Anthericum liliago

Family: Asparagaceae

(P) to 2′.  St. Bernard’s Lily.  Europe, Turkey.  White, trumpet-shaped, star-like, 1½-inch long flowers with showy yellow anthers appear in spike-like clusters atop 2 foot tall stems rising well above a clump of narrow, grass-like, dark green leaves. Flowers resemble miniature lilies and bloom in mid to late spring.  This plant is also very reliable in our Gravel Garden.  Sun.  3, 7 for 4 weeks, T2