Definition of ceanothus in US English:

ceanothus

noun

  • A North American shrub of the buckthorn family, cultivated for its dense clusters of small blue or white flowers.

    Genus Ceanothus, family Rhamnaceae: numerous species, especially in the western US, including the blueblossom ceanothus of the Pacific coast

    • ‘You will soon have a thick, impenetrable hedge to enclose the fast-growing butterfly bush, Buddleia davidii (coppice it annually to promote flowers), or the heavenly blue blooms of enthusiastic ceanothus thrysiflorus.’
    • ‘It's a good time to thin out weak branches of ceanothus and to shorten remaining growths (not into old wood).’
    • ‘Take heel cuttings from ceanothus, penstemons, lavenders, santolinas and philadelphus.’
    • ‘To distinguish a blue blossom ceanothus from a musk bush, for example, look for ridges on the plants' stems.’
    • ‘Plants chosen for drought tolerance as well as color thrive here, including catmint (Nepeta ‘Blue Wonder’), ceanothus, lychnis, penstemon, purple coneflower, rockrose, rosemary, and star jasmine.’

Origin

Modern Latin, from Greek keanōthos, denoting a kind of thistle.

Pronunciation

ceanothus

/ˌsēəˈnōTHəs/