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Cannas: Canna 'Roi Humbert'

Botanical name: Canna 'Roi Humbert'

Common name: canna-lily

also known as (indian shot, Canna x generalis 'Roi Humbert', Canna 'Red King Humbert', Canna x generalis 'Red King Humbert')

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created by:
chief cultivator

Mercer island, Wa

at a glance

Soil: damp, acidic, sand
Zones: 7a thru 11a

butterfly attracting

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description for "Cannas: Canna 'Roi Humbert'"

'Roi Humbert' is tall and red with beautiful reddish bronze foliage. Canna-lilies, with their lush tropical foliage and showy gladiolus-like flowers, make borders and beds come alive with their bright colors all summer long till frost. Long valued by park and municipal gardeners, home gardeners now realize the value of these new hybrids as each year their popularity grows. Plant 'Roi Humbert' canna-lilies 18" apart. Plants prefer warm temperatures and bloom best after several weeks of above 80° F temperatures. North of zone 7, dig up the rhizomes just after frost kills the foliage. Dry them out and store them in a cool, lightly moist peat moss until the early spring. About 4 weeks before the last spring frost, pot them up inside. They'll be ready to put outside after all danger of frost is past to give their summer show! -- edited by dtd pbcouchman


Most garden canna-lilies are complex hybrids between Canna glauca, Canna speciosa, Canna iridifolia, Canna warscewiczii and Canna flaccida.

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