All Plants: Opal - Orbi (86)
'Opal Cup' Spurred Anoda
'Opal' Lungwort: hybrid
'Opera' Butterflybush: hybrid
'Ophir' Daylily
Opium Poppy (spp.)
Opium Poppy 'Pink Charm'
Opium Poppy: somniferum paeoniflorum
'Oporanthum' Autumn Snowflake
Orach Saltbush 'Crimson Plume'
'Orange Aide' Cinquefoil
Orange Ball Tree
'Orange Beauty' Daylily
Orange Bells
Orange Berry Pittosporum (spp.)
Orange Berry Pittosporum Variegated
'Orange' Black-eyed Susan Vine
Orange Bottlebrush Ginger (spp.)
Orange Bottlebrush Ginger 'Aurantiacum'
Orange Bottlebrush Ginger 'Tara'
'Orange Bowl' Hybrid Tulip
Orange Browallia
Orange Calamondin 'Tiger'
Orange Cestrum
Orange Clock Vine
Orange Colored Sedge (spp.)
Orange Colored Sedge 'Toffee Twist'
Orange Coneflower 'Goldsturm'
'Orange Dream' Japanese Maple
'Orange Fiesta' Bougainvillea: Bougainvillea
Orange Flame Vine
'Orange Gnome' Arkwright's Campion
'Orange Jacket' French Marigold
Orange Jasmine
Orange Jessamine
'Orange Kewpie' Plume Celosia
'Orange King' Common Zinnia
Orange Larkspur (spp.)
Orange Larkspur 'Laurin'
Orange Muatucana
Orange Panama 'Tiger'
'Orange Prince' Pot Marigold
Orange River Lily
Orange Sneezeweed
'Orange Sprite' Creeping Zinnia
'Orange Star' Mexican Zinnia
Orange Star 'Minor'
Orange Stonecrop (spp.)
Orange Stonecrop 'Tricolor'
Orange Stonecrop Variegated
'Orange Sun' Common Sunflower
Orange Sunflower (spp.)
Orange Sunflower 'Ballerina'
Orange Sunflower 'Incomparabilis'
Orange Sunflower 'Summer Gold'
Orange Sunflower 'Summer Sun'
Orange Sunflower 'Venus'
Orange Sunflower 'Zinnaeflora'
Orange Thorn
Orange Thorn: spinescens
Orange Tower Flower 'Borneo Sunset'
Orange Trumpet
Orange Wattle
Orange, Bitter (spp.)
Orange, Bitter 'Flying Dragon'
Orange, Hardy (spp.)
Orange, Hardy 'Flying Dragon'
Orange, Japanese Hardy (spp.)
Orange, Japanese Hardy 'Flying Dragon'
Orange, Mock (spp.)
Orange, Mock 'Creme De Menthe'
Orange, Mock 'Turners Dwarf'
Orange, Mock Variegated
Orange, Osage (spp.)
Orange, Osage 'Double O'
Orange, Satsuma
Orange, Sweet (spp.)
Orange, Sweet 'Dwarf Valencia'
Orange, Temple
Orange, Trifoliat (spp.)
Orange, Trifoliat 'Flying Dragon'
'Orangeade' Guzmania
'Orangeade' Rose
Orangeglow Vine
'Orangemint' Peppermint
Orbea
'Orbit Hot Pink' Zonal Geranium