How to Prune Canna 'Firebird'?
No pruning required but deadhead to promote continued flowering

Canna 'Firebird' · Canna 'Firebird'
As a patio plant grow in pots of loamless compost in a sheltered site in full sun. Plants can also be planted into a sunny border. Water freely and apply a high potassium feed every 2-3 weeks in the growing season. Lift the rhizomes in autumn when frost blackens the foliage. Store over winter in barely moist compost in frost-free conditions. See canna cultivation for further information
No pruning required but deadhead to promote continued flowering