C
- CABBAGE
- CABBAGE AND KALE, FLOWERING
- CAESALPINIA
- CALADIUM BICOLOR
- CALAMINT
- CALANTHE
- CALATHEA
- CALENDULA, POT MARIGOLD
- CALIBRACHOA
- CALIFORNIA POPPY
- CALLA
- CALLERY PEAR
- CALLIANDRA
- CALYCANTHUS
- CAMASS
- CAMELLIA
- CAMPHOR TREE
- CANBY’S MOUNTAIN LOVER
- CANDYTUFT
- CANNA
- CAPE FUCHSIA
- CAPE PRIMROSE
- CARAMBOLA, STARFRUIT
- CARAWAY
- CARDOON
- CARICATURE PLANT
- CAROLINA MOONSEED
- CARROT
- CASSIA
- CAST-IRON PLANT
- CASTILLEJA
- CASTOR ARALIA, TREE ARALIA
- CASTOR BEAN
- CATALPA
- CATTLEYA
- CAT’S CLAW, YELLOW TRUMPET VINE
- CAULIFLOWER
- CEDAR
- CELANDINE POPPY, WOOD POPPY
- CELERY
- CENTAUREA
- CERATOZAMIA MEXICANA
- CESTRUM
- CHAIN FERN
- CHAMAEDOREA
- CHASTE TREE
- CHAYOTE
- CHECKERBLOOM, MINIATURE HOLLYHOCK
- CHERRY TREE
- CHESTNUT TREE
- CHICORY AND RADICCHIO
- CHINA ASTER
- CHINA DOLL
- CHINA FIR
- CHINABERRY
- CHINESE CABBAGE
- CHINESE BUTTONBUSH
- CHINESE FAIRY BELLS
- CHINESE FOXGLOVE
- CHINESE FRINGE, CHINESE WITCH HAZEL
- CHINESE GROUND ORCHID, HARDY ORCHID
- CHINESE LANTERN PLANT
- CHINESE QUINCE
- CHINESE TALLOW, POPCORN TREE
- CHINESE YELLOW BANANA
- CHOKEBERRY
- CHOLLA
- CHORISIA FLOSS SILK TREE
- CHRYSANTHEMUM
- CILANTRO, CORIANDER
- CINERARIA
- CINQUEFOIL
- CITRUS
- CLADRASTIS KENTUKEA YELLOW WOOD
- CLASPING CONEFLOWER
- CLEMATIS
- CLETHRA
- CLEYERA JAPONICA
- CLIFF-BRAKE
- CLIMBING HYDRANGEA, WOOD VAMP
- CLIMBING YELLOW BLEEDING HEART
- CLINTON LILY
- CLITORIA
- COCKSCOMB
- COCONUT PALM
- COFFEE
- COLEUS
- COLUMBINE
- COMFREY
- COMMON BLEEDING HEART
- COMMON HYACINTH
- COMMON NINEBARK
- CONEFLOWER
- CONEFLOWER
- CONRADINA
- CORAL BELLS, ALUM ROOT
- CORAL TREE
- CORAL VINE, QUEEN’S WREATH, ROSA DE MONTANA
- CORDIA
- CORDYLINE
- COREOPSIS
- CORN
- CORYDALIS
- COSMOS
- COTONEASTER
- COTTON
- CRAMBE
- CRANESBILL
- CRASSULA
- CREEPING ZINNIA
- CREOSOTE BUSH
- CREPE MYRTLE
- CRESS, GARDEN
- CRIMSON FLAG
- CRINUM, X AMARCRINUM
- CROCOSMIA
- CROCUS
- CROSSVINE
- CROTON
- CUCUMBER
- CULVER’S ROOT
- CUP FLOWER
- CUP-AND-SAUCER VINE
- CUP-OF-GOLD VINE, CHALICE VINE
- CUPHEA
- CUPID’S DART
- CURCUMA
- CYCADS
- CYCLAMEN
- CYPERUS
- CYPRESS
