Perennials: Ruff - Saff (66)
'Ruffled Apricot' Daylily
'Ruffled Ruby' Daylily
'Ruffles' Alumroot: micrantha
Runaway Robin (spp.)
Runaway Robin Variegated
'Rundelick' Daylily
'Running Tapestry' Heartleaf Foamflower
Rupturewort
Rupturewort: pubescens
Ruscus
Rush Milkweed
Rush, Common 'Gold Strike'
Rush, Elegant
Rush, Scouring
Rush, Soft 'Gold Strike'
'Russell Hybrid' Lupine
'Russell Manning' Argentine Rain Lily
Russian Comfrey 'Axminster Gold'
Russian Comfrey Variegated
'Russian Easter' Daylily
Russian Sage (spp.)
Russian Sage 'Blue Spire'
Russian Sage 'Filagran'
Russian Sage 'Little Spire'
Russian Sage 'Longin'
'Rustic Orange' Coleus: hybrid
Rusty Foxglove (spp.)
Rusty Foxglove 'Yellow Herald'
Rusty Sage
Rusty Woodsia Fern
Rye, Giant Wild (spp.)
Rye, Giant Wild 'Canyon Prince'
Ryegrass 'Manhattan'
Ryegrass, English 'Manhattan'
Ryegrass, Perennial 'Manhattan'
Sacred Lotus (spp.)
Sacred Lotus 'Asiatic White'
Sacred Lotus 'Baby Doll'
Sacred Lotus 'Ben Gibson'
Sacred Lotus 'Charles Thomas'
Sacred Lotus 'Chawan Basu'
Sacred Lotus 'Empress'
Sacred Lotus 'Gulang Red'
Sacred Lotus 'Hong Chow Bowl'
Sacred Lotus 'Maggie Belle Slocum'
Sacred Lotus 'Momo Botan'
Sacred Lotus 'Pekinensis Rubra'
Sacred Lotus 'Perry's Giant Sunburst'
Sacred Lotus 'Red Baby'
Sacred Lotus 'Red Radiance'
Sacred Lotus 'Rosea Plena'
Sacred Lotus 'Ruby Gardner'
Sacred Lotus 'Shiroman'
Sacred Lotus 'Speciosum'
Sacred Lotus 'The President'
Sacred Lotus White
Sacred Lotus 'Xiamen Bowl'
'Safari' Amaryllis: Hippeastrum
Saffron
Saffron Buckwheat
Saffron, Indian
Saffron, Meadow (spp.)
Saffron, Meadow 'Waterlily'
Saffron, Spring Meadow
Saffron: speciosum, Meadow (spp.)
Saffron: speciosum, Meadow 'The Giant'