'Summer Beauty' Butterflybush 'Summer Beauty' Shrub Bush Clover
'Summer Dream' Rose 'Summer Glow' Tamarisk
Summer Holly Manzanita: diversifolia Summer Lilac 'African Queen'
Summer Lilac 'Attraction' Summer Lilac 'Bonnie'
Summer Lilac 'Border Beauty' Summer Lilac 'Butterfly Heaven'
Summer Lilac 'Cornwall Blue' Summer Lilac 'Ellen's Blue'
Summer Lilac 'Empire Blue' Summer Lilac 'English Butterfly™ Adonis Blue™'
Summer Lilac 'English Butterfly™ Peacock™' Summer Lilac 'English Butterfly™ Purple Emperor™'
Summer Lilac 'Fortune' Summer Lilac 'Guinevere'
Summer Lilac 'InSpired® Pink' Summer Lilac 'InSpired® Violet'
Summer Lilac 'InSpired® White' Summer Lilac 'Lo & Behold® Lilac Chip'
Summer Lilac 'Miss Ellen' Summer Lilac 'Moonshadow'
Summer Lilac 'Nitche's Choice' Summer Lilac 'Orchid Beauty'
Summer Lilac 'Peace' Summer Lilac 'Petite Plum'
Summer Lilac 'Pink Spread' Summer Lilac 'Potter's Purple'
Summer Lilac 'Purple Prince' Summer Lilac 'Queen's Robe'
Summer Lilac 'Raspberry Wine' Summer Lilac 'Silver Frost'
Summer Lilac 'Summer Beauty' Summer Lilac 'Summer Rose'
Summer Lilac 'Summer Skies' Summer Lilac 'White Ball'
Summer Lilac 'White Harlequin' 'Summer Rose' Butterflybush
'Summer Skies' Butterflybush: Buddleia 'Summer Snowflake' Doublefile Viburnum: plicatum
'Summer Stars™' Georgia Bush Honeysuckle Summer Sweet (spp.)
Summer Sweet 'Ann Bidwell' Summer Sweet 'Compacta'
Summer Sweet 'Fern Valley Pink' Summer Sweet 'Hummingbird'
Summer Sweet 'Rosea' Summer Sweet 'Ruby Spice'
Summer Sweet 'September Beauty' Summer Sweet 'Sugartina® Crystalina'
Summer Sweet 'Vanilla Spice™' Summer Sweet: acuminata
Summer Sweet: barbinervis 'Summer's Kiss' Rose
'Sun Flare' Rose Sun Rose, Lisbon False
'Sun Spot' Wintercreeper 'Sundance' Mexican Orange
'Sundance' Shrubby Cinquefoil 'Sungold' Goldencup St. Johnswort
'Sunjoy® Cinnamon' Japanese Barberry 'Sunjoy® Citrus' Japanese Barberry
'Sunjoy® Syrah' Japanese Barberry 'Sunjoy® Tangelo' Japanese Barberry
'Sunny Boulevard™' St. Johnswort: Hypericum 'Sunny Princess' Old Fashioned Weigela
'Sunray' Fuchsia 'Sunrise' Glossy Abelia
'Sunset' Bigleaf Hydrangea 'Sunset Gold' Pink Breath-of-Heaven
'Sunset' Scotch Heather 'Sunset' Shrubby Cinquefoil
'Sunshine Blue' American Blueberry 'Sunshine' Chinese Privet: sinense
'Sunshine Daydream' Glossy Abelia 'Sunsplash' Winterberry: verticillata
'Sunsprite' Rose 'Super' Trailing Abutilon
Superstition Mallow Supplejack
Sur Manzanita 'Bert Johnson' Surinam Cherry
'Susan' Magnolia 'Susanne' Old Fashioned Weigela
'Susquehanna' Sargent Viburnum 'Sutherland Gold' European Red Elderberry
'Sutherlandii' Hebe 'Sutter's Gold' Shrubby Cinquefoil
'Suwan Gold' Korean Greenstem Forsythia