Roscoea auriculata 'Floriade' has larger flowers than the species.

Roscoea cautleyoides 'Jeffrey Thomas' has pale yellow flowers with a particularly large flower lip.

A Himalayan native, Roscoea purpurea, is a zone 6 ginger relative with orchid-like, light purple flowers.

Roscoea ‘Brown Peacock' has orchid-like, lavender flowers on top of purple-brown stalks with clasping green leaves that are red-flushed beneath.

Rosmarinus officinalis ‘Foxtail' is a hardy culinary rosemary with a semi-prostrate habit.

Rosmarinus ‘Hill Hardy’, aka 'Madeline Hill', is one of the hardiest culinary rosemaries able to withstand zone 6!

Rubus arcticus subsp. x stellarcticus 'Anna' is an extremely hardy plant in the raspberry family with pink blooms and red fruit in July.

Rubus idaeus 'Red River' is a dwarf cultivar to just 3 feet tall with sweet, juicy, red raspberries from mid to late summer.

Rubus occidentalis 'Jewel' is known as the black raspberry.

Rubus 'Hall's Beauty' is a thornless hybrid blackberry with ornamental flowers with numerous, large petals and tasty fruit.

Rubus 'Polar Berry' is an unusual blackberry with translucent, white fruit said to taste just like a black blackberry.

Rubus 'Youngberry' is a hybrid cross between a blackberry, raspberry, and dewberry with large, succulent reddish-black berries.

Rudbeckia 'American Gold Rush' is perhaps the best black-eyed Susan available with great habit and flower power.

Rudbeckia triloba is a Brown-eyed Susan with a bounty of bright yellow flowers and dark cones from mid-summer to frost.

Rudbeckia 'Blackjack Gold', a sweet coneflower, has small and plentiful yellow flowers with dark brown to black cones.

Salix sachalinensis 'Golden Sunshine' is a vigorous and adaptable willow with rich, dramatic, solid gold foliage.

Salvia greggii 'Lipstick' has evergreen aromatic foliage and long-blooming red flowers with white throats.

Salvia Mirage 'Rose Bicolor' has bi-coloured flowers of rose and cream blooming all summer with fragrant foliage. Prefers hot dry spots.

Salvia gauranitica 'Purple and Bloom' is an anise-scented sage with purple tubular flowers and black sepals.

Salvia koyamae is a rare Japanese yellow sage with green, hairy foliage and yellow tubular flowers popular with pollinators.

Salvia madrensis 'Red Neck Girl' has maroon stems that are adorned later in the season with a compliment of yellow flowers.

Salvia nemerosa 'Caramia' is an improvement upon 'Caradonna' with a more compact habit and 3 times as many blooms!

Salvia Color Spires 'Azure Snow' has fragrant, two-lipped, bi-colour flowers in violet-blue and white with aromatic foliage.

Salvia 'Violet Riot' has fragrant two-lipped flowers in violet-blue with dark purple sepals and aromatic, green foliage.

Sambucus canadensis 'Ranch' produces delicious black berries on more compact plants.