Perennials

All perennials remain in the garden for at least three years, however, since most plants are not established the first year, data generally begins after the first winter. We compile information on:

  1. time of first flower,
  2. duration of flowering,
  3. height,
  4. and foliar health.

We also provide comments as the plants mature throughout the season. Accompanying these data is a photograph of the flower and plant habit.

You can see our very top picks for each year under Classic City Awards.

Botanical Name     Common Name
A B C D E F-G H I J-L M-O P Q R S T U-Z
Calamagrostis brachytricha
Common Name: Feather Grass
Calylophus drummondianus
Common Name: Texas Primrose
Campanula punctata 'Pantaloons'
Common Name: Hybrid Bellflower
Campanula punctata 'Pink Chimes'
Common Name: Spotted Bellflower
Campanula punctata 'Plum Wine'
Common Name: Hybrid Bellflower
Campaula  'Viking'
Common Name:
Canna indica 'Tropicanna Black'
Common Name: Canna Lily
Canna x generalis 'Australia'
Common Name: Canna Lily
Canna x generalis 'Bengal Tiger'
Common Name: Canna Lily
Canna x generalis 'Pink Sunburst'
Common Name: Canna Lily
Canna x generalis 'Tropicanna'
Common Name: Canna Lily
Canna x generalis 'Tropicanna Gold'
Common Name: Canna Lily
Carex ciliatomarginata 'Treasure Island'
Common Name: Hairy Sedge
Carex conica 'Marginata'
Common Name: Birdfoot Sedge
Carex muskingumensis 'Oehme'
Common Name: Palm Sedge
Carex oshimensis 'Evergold'
Common Name: Evergold Sedge
Caryopteris  'Gold Giant'
Common Name:
Caryopteris clandonensis 'White Surprise'
Common Name: Blue Mist Spirea
2009 is the first trial year for this perennial.
Caryopteris divaricata 'Snow Fairy'
Common Name: Bluebird
Ceratostigma plumbaginoides
Common Name: Leadwort
Ceratostigma willmottianum 'Forest Blue'
Common Name: Chinese Leadwort
Cestrum parqui
Common Name: Chilean Jessamine
Clematis  'Duchess of Albany'
Common Name:
2009 is the first trial year for this perennial.
Clematis  'Duchess of Edinborough'
Common Name:
2009 is the first trial year for this perennial.
Clematis hybrid 'Bourbon'
Common Name:
Clematis hyrid 'Empress'
Common Name:
Clematis integrifolia
Common Name:
Clematis pitcheri
Common Name: Bluebill
Clematis texensis 'Princess Diana'
Common Name: Texas Clematis
Cordyline  'Splendor'
Common Name:
Cordyline  'Torbay Dazzler'
Common Name: Cordyline
Cordyline australis
Common Name:
Cordyline australis 'Red Sensation'
Common Name: Cabbage Palm
Coreopsis  'Big Bang Red Shift'
Common Name:
Coreopsis  'Route 66'
Common Name:
2009 is the first trial year for this perennial.
Coreopsis  'Santa Fe Yellow'
Common Name:
Coreopsis grandiflora 'Goldfink'
Common Name: Hybrid Tickseed
Coreopsis hybrid 'Big Bang Full Moon'
Common Name: Tickseed
Coreopsis hybrid 'Jethro Tull'
Common Name: Hybrid Tickseed
Coreopsis tripteris 'Lightning Flash'
Common Name: Tickseed
Corydalis  'Mancha'
Common Name:
2009 is the first trial year for this perennial.
Cotinus coggygria 'Golden Spirit'
Common Name: Smoke tree
Crinum hybrid 'Bradley'
Common Name: Crinum Lily
Crinum hybrid 'P.F.Reasoner'
Common Name: Crinum Lily
Crocosmia hybrid 'Lucifer'
Common Name: Hybrid Crocosmia
Crocosmia hybrid 'Walburton Red'
Common Name: Montbretia
Crocosmia hybrid 'Walburton Yellow'
Common Name: Montbretia
Crocosmia species
Common Name: Montbretia
Crocus tommasianus 'Barr's Purple'
Common Name: Crocus
Cuphea  'Plum Mist'
Common Name:
Cuphea cyanea 'Candy Corn'
Common Name: Black-eyed Cuphea
Cuphea micropetala
Common Name: Giant Cigar Flower