| Cultivar | Group | Type | Hardy | Color | Bloom Time | |
|---|---|---|---|---|---|---|
| C2-00-19 | Klimavicz | evg | Zone 7 | Midseason | ||
|
Cadenza | Glenn Dale | evg | |||
|
‘Caitlin Marie’ | Klimavicz | evg | -10°F | Purple,Red | Midseason |
| Cajun Queen | Unknown | evg | ||||
|
‘Calafrilly’ | Doppel | elp | Purple,White | Midseason | |
| ‘Calameres’ | Wister | elp | ||||
|
R. calendulaceum
(Flame Azalea) | Species | dec | -25 F | Yellow | Late Midseason |
| R. calendulaceum Double Yellow, OP | Species | dec | ||||
| R. calendulaceum, from Pottertown-Gap | Species | dec | -25 F | |||
|
R. calendulaceum, from Hooper Bald | Species | dec | -25 F | ||
| R. calendulaceum, from Pocahontas County WV | Species | dec | ||||
|
R. calendulaceum OP, BC08017 | Species | dec | |||
|
R. calendulaceum Red, OP | Species | dec | Zone 5-8 | Late Midseason | |
|
R. calendulaceum OP, BC08140 | Species | dec | |||
|
R. calendulaceum OP, Hooper Bald, BC08090 | Species | dec | -25°F | Orange,Scarlet,Yellow | |
|
R. calendulaceum #2 OP | Species | dec | |||
| R. calendulaceum from Polly Hill Arb
aka:[Flame Azalea] | Species | dec | Zone 5-8 | Late | ||
|
R. calendulaceum salmon pink selection OP
aka:[Flame Azalea] | Species | dec | Zone 5-8 | Late | |
| R. calostrotum x Hagg's carolinianum | Unknown | lep | ||||
|
Calsap | Michener | elp | -25° F | White | Midseason |
| ‘Calvary’s Love’ | Jenkins | evg | ||||
|
Camelot | Glenn Dale | evg | |||
|
‘Camilla's Blush’ | Beasley | dec | Zone 6-9 | ||
|
Campfire | Glenn Dale | evg | Midseason | ||
|
Campfire Belle | Cowles | elp | Cream,Pink,Rose | Midseason | |
|
Campfire Coral | Cowles | elp | Coral,Pink | Midseason | |
| ‘Campfire Peach’ | Heritage Plantation | evg | ||||
|
‘Can Can’ | Greenwood | evg | Purple,Red | Late Midseason | |
|
‘Can Can’ | Doppel | elp | Purple,White | ||
|
‘Canary Isles’ | Aromi | dec | 6a-9b | Early Midseason | |
| Candlelight | Glenn Dale | evg | ||||
| ‘Candy Lights’ | Northern Lights | dec | -5 F | |||
|
R. canescens
(Piedmont, Sweet Mountain, or Florida Pinxter Azalea) | Species | dec | Pink,White | ||
| R. canescens OP | Wrenwood | dec | Zones 5-9 | |||
| R. canescens yellow throat | Species | dec | ||||
| Cannon's Double | Cannon | dec | Zone 5-9 | Late | ||
|
Cantabile | Glenn Dale | evg | |||
|
Cape Cod | McDonald | evg | 10 degrees F | Green,White | Late Midseason |
|
‘Cape White’
(White Supreme) | Cowles | elp | -10° F | White | Late Midseason |
|
Capella | Glenn Dale | evg | |||
| Capitstrano | Leach | elp | ||||
|
‘Caprice’ | Mossholder/Gold Cup | evg | -5° F | Pink,White | Midseason |
|
Caprice | Glenn Dale | evg | Red,White | Early | |
|
Caprice sport | Mossholder/Gold Cup | evg | |||
|
‘Captain Blood’ | Kerrigan | evg | Zone 7, at least | ||
|
Captivation | Glenn Dale | evg | |||
|
Caraval | Glenn Dale | evg | |||
|
Carbineer | Glenn Dale | evg | |||
| Cardinal | Indian | evg | ||||
|
‘Cardinal's Crest’ | Hyatt | evg | Zone 7 | Midseason | |
|
Caress | Glenn Dale | evg | |||
| Carillon | Beltsville/Yerkes-Pryor | evg | Zone 7a-8b | Red,Orange | ||
|
Carla Probably Not | Carla | evg | |||
|
Carmel | Glenn Dale | evg | |||
|
Carnival | Glenn Dale | evg | |||
| ‘Carnivale’
aka:[Donna's Carnivale] | Pilkington | elp | ||||
|
‘Carol Flowers’ | Stewart | evg | Zone 7, at least | Early Midseason | |
|
Carol Kitchen | Linwood | evg | 0 F | Early Midseason | |
|
‘Carol Kittel’ | Marshy Point | evg | -15 F | Midseason | |
|
‘Carol Segree’ | Stewart | evg | Zone 7 | Early Midseason | |
|
‘Caroline’ | Gable | elp | -15° F | Late Midseason | |
| Caroline Dorman | Back Acres | evg | ||||
|
Caroline Gable | Gable | evg | Zone 7, at least | Red | Late Midseason |
| R. carolinianum alba | Species | lep | ||||
|
‘Carolyn’ | Holly Springs | evg | Zone 7 | Midseason | |
|
‘Carolyn & Paul’ | Stewart | evg | Zone 7 | Early Midseason | |
|
‘Carolyn Beck’ | Klimavicz | evg | 5°F | Early Midseason | |
|
‘Carolyn's Day’ | Harris | evg | Pink-Light,Salmon,White | ||
|
Carol’s Super White | Gable | elp | -20° F | White | |
|
Carrara | Glenn Dale | evg | |||
|
‘Carrie Amanda’ | Schroeder | evg | -15 F | Early Midseason | |
| Carrie Amanda x Pink Pancake | Marshy Point | evg | ||||
|
Carror | Carla | evg | Zone 7 | Late Midseason | |
| Cartpath Bicolor | Cowles | elp | ||||
|
Casablanca | USDA | evg | Zone 7 - 9 | White | |
| Cascade | Glenn Dale | evg | -5°F | |||
|
Catalyst | Rhein | elp | |||
|
Catawba | Glenn Dale | evg | |||
| ‘Catawbiense Rubra’ | Unknown | elp | Late Midseason | |||
|
Cathay | Glenn Dale | evg | |||
|
‘Catherine Buckley’ | Marshy Point | evg | Midseason | ||
|
‘Catherine Gutierrez-Moline’ | Holly Springs | evg | Zone 7a, -5F | Very Late | |
|
Catherine White | Richard White | elp | Orange,Yellow | Midseason | |
|
Cattleya
(Ogikasane) | Kurume | evg | |||
|
Cavalier | Glenn Dale | evg | Orange,Pink-Dark,Yellow | Early | |
|
Cavatina | Glenn Dale | evg | |||
|
CB #1 | Brown | evg | |||
|
CB #10 | Brown | evg | |||
|
CB #11 | Brown | evg | |||
|
CB #1A | Brown | evg | |||
|
CB #3 | Brown | evg | |||
| ‘CB 10, OP’ | Natural Hybrid | dec | Late | |||
| CD-13-17 | Klimavicz | evg | Zone 7 | |||
|
Celestial | Glenn Dale | evg | |||
| CH 32 | Unknown | evg | ||||
|
‘Cha Cha’ | Mossholder/Gold Cup | evg | Zone 7b | ||
|
Challenger | Glenn Dale | evg | |||
| Chamaecyparis obtusa Ceramic
(Christmas Tree Ceramic) | Conifer | evg | Zone 5 | |||
| Chamaecyparis obtusa Flabelliformis | Conifer | cmp | Zone 5 | |||
| Chamaecyparis obtusa Green Cushion | Shrub | evg | ||||
| Cultivar | Group | Type | Hardy | Color | Bloom Time |