Canna ‘Liebesglut’ is a medium sized Italian Group cultivar; bronze foliage, large, elliptical shaped, maroon margin, branching habit; oval main stems, coloured purple; triangular flower stems, coloured purple; flowers are open, self-coloured deep-crimson, staminodes are large, edges lightly frilled, petals purple with farina, fully self-cleaning, average bloomer, blooms open in the early morning; seed is sterile, pollen is low fertile; rhizomes are thick, up to 3 cm in diameter, coloured purple; tillering is average.
Flowers dull fire red, centre slightly darker tinted. Leaves brown. Tall.
Ian Cooke, The Gardeners Guide to Growing Cannas
(M) The flowers of this cultivar are deep crimson. It is very similar to ‘Black Knight’, and although this name is registered, it is difficult to know whether there is any distinction, or whether this is the correct name. It has dark bluish-bronze foliage and is available from specialist nurseries.
KAVB International Canna Checklist, September 2004
Flowers dull fire-red (RHS 33B), centre slightly darker tinted, leaves brown, height over 80 cm.