American cranberry

The circumboreal lingonberry, or cowberry: a low evergreen of acid heath, rocky barrens and conifer forest floor right around the northern hemisphere, with glossy dark leaves, pink and white bell flowers in late spring and clusters of tart red berries that hang on into winter. Where American cranberry wants a wet bog, lingonberry wants moist but free-draining acid soil and a cool summer.

A tender warm-season culinary herb native to tropical Africa and Asia; grown as an annual in most US climates for fragrant edible leaves and as a kitchen-garden staple. Sweet basil is the species behind Genovese, Thai, and most ornamental purple basils.

Shiso is a fast-growing Asian culinary herb in the mint family (Lamiaceae), native across a wide arc from the Himalayas through China, Japan, and Korea to Southeast Asia (Wikipedia; GBIF). In temperate gardens it is grown as a tender annual reaching 24 to 35 inches, prized for its aromatic, serrated leaves used in Japanese, Korean, and Chinese cooking. The honest catch is its aggressive self-seeding: shiso sets abundant seed in late summer and is designated a weed in parts of the United States, so deadheading before seed set is essential unless you want a permanent colony - and all parts are toxic to grazing livestock (perilla ketone).

Lemon thyme (Thymus × citriodorus) is a low, mat-forming evergreen sub-shrub grown for its small leaves that release a bright, distinctly lemony scent alongside the usual warm thyme aroma. It stays under a hand-span tall, spreads into a fragrant carpet, and carries pink to lavender flowers in mid to late summer that bees and butterflies work hard. It is a kitchen herb first, excellent in cooking and teas, and a tough, drought-tolerant edging or paving plant second. Its taxonomy is genuinely unsettled: long treated as a garden hybrid of common thyme, more recent work disputes whether it is a hybrid or a distinct species, and sources disagree on whether it has any wild native range, so Plotwright records it as a cultivated plant without a mapped wild distribution.

A fast, erect cool-season annual in the mustard family (Brassicaceae), introduced to all of North America from Eurasia and grown widely as a leafy vegetable. NC State Extension describes a rapid-growing plant about 12 to 18 inches tall and wide with large (over 6 inches) leaves - lobed lower leaves and shorter-stalked upper leaves, smooth with a whitish bloom and sometimes purple veins or fully purple coloring. It does best in the cool of fall and spring and bolts in summer heat, throwing up terminal clusters of small four-petaled yellow flowers and developing a strong, spicy flavor. The leaves, seeds, flowers, and stems are all edible raw or cooked, making it a productive, peppery green for the edible garden.

A tender, tuberous-rooted morning-glory relative native to tropical America and cultivated for its starchy edible storage roots for over 2,000 years. Trailing stems mound only about 9 inches tall but sprawl 8 to 10 feet wide, rooting at the nodes, with heart-shaped to palmately-lobed leaves. The species occasionally bears pale-pink-to-violet trumpet flowers, though most cultivars rarely bloom. Winter hardy only to USDA Zones 9-11, it is grown as a warm-season annual everywhere colder.