Blue

Caryopteris incana

Common bluebeard

Caryopteris incana 'Jason'

Common bluebeard

Caryopteris Sapphire Dream = 'Lissmiv'

Bluebeard, Blue mist shrub, Blue spiraea

Caryopteris x clandonensis

Bluebeard, Blue mist shrub, Bluebeard, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'Arthur Simmonds'

Bluebeard, Blue mist shrub, Bluebeard, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'Aurea'

Bluebeard, Blue mist shrub, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'Dark Knight'

Bluebeard, Blue mist shrub, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'Ferndown'

Bluebeard, Blue mist shrub, Bluebeard, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'First Choice'

Bluebeard, Blue mist shrub, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'Longwood Blue'

Bluebeard, Blue mist shrub, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'Pershore'

Bluebeard, Blue mist shrub, Blue spiraea

Caryopteris x clandonensis 'Summer Sorbet'

Bluebeard, Blue mist shrub, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'Thetis'

Bluebeard, Blue mist shrub, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis 'White Surprise'

Variegated bluebeard, Blue mist shrub, Variegated blue spiraea

Caryopteris x clandonensis 'Worcester Gold'

Bluebeard, Blue mist shrub, Bluebeard, Blue spiraea, Clandon spiraea

Caryopteris x clandonensis Hint of Gold = 'Lisaura'

Golden bluebeard, Golden blue mist shrub

Caryopteris x clandonensis Sterling Silver = 'Lissilv'

Bluebeard, Blue mist shrub, Blue spiraea, Clandon spiraea

Catananche caerulea 'Amor Blue'

Cupid's dart

Ceanothus 'Blue Sapphire'

California lilac

Ceanothus 'Burkwoodii'

California lilac, Redroot

Ceanothus 'Cascade'

California lilac, Redroot, Creeping blue blossom

Ceanothus 'Concha'

California lilac, Redroot

Ceanothus 'Delight'

California lilac, Redroot

Ceanothus 'Italian Skies'

California lilac, Redroot

Ceanothus 'Ken Taylor'

California lilac, Redroot

Ceanothus 'Lemon and Lime'

California lilac, Redroot

Ceanothus 'Pin Cushion'

California lilac, Redroot

Ceanothus 'Ray Hartman'

California lilac

Ceanothus 'Southmead'

California lilac, Redroot

Ceanothus 'Tilden Park'

California lilac, Redroot

Ceanothus 'Topaze'

California lilac, Redroot

Ceanothus Chameleon Red = 'Hyfrud'

Californian lilac

Ceanothus gloriosus 'Emily Brown'

Point Reyes ceanothus

Ceanothus griseus var. horizontalis 'Silver Surprise'

Carmel ceanothus, Yankee point ceanothus

Ceanothus impressus

Santa Barbara Ceanothus

Ceanothus ramulosus

Coast ceanothus

Ceanothus thyrsiflorus

Blue blossom, Blue brush

Ceanothus thyrsiflorus 'Mystery Blue'

Blue blossom, Blue brush

Ceanothus thyrsiflorus El Dorado = 'Perado'

California lilac

Ceanothus x delileanus 'Gloire de Versailles'

California lilac, Redroot, French hybrid ceanothus

Ceanothus x delileanus 'Henri Desfosse'

California lilac, Redroot

Ceanothus x veitchianus

Veitch's Californian Lilac

Centaurea cyanus

Cornflower, Blue-bottle, Batchelor's buttons

Centaurea cyanus 'Blue Diadem'

Cornflower, Blue-bottle, Batchelor's buttons

Centaurea cyanus 'Polka Dot Mix'

Cornflower, Blue-bottle, Batchelor's buttons

Centaurea montana 'Gold Bullion'

Mountain knapweed, Perennial cornflower, Mountain bluet, Perennial bachelor's buttons

Ceratostigma griffithii

Burmese plumbago

Ceratostigma plumbaginoides

Autumn flowering shrubby plumbago