How to prune leucanthemum × superbum 'alaska'

Deadhead from early summer onward; hard cutback in late autumn; divide in spring. Deadhead by cutting spent stems to a leaf joint or side shoot. After the first hard frost or in early autumn, cut all growth down to the basal leaf rosette. In spring, lift and divide congested plants, replanting vigorous outer portions.

Deadhead regularly; annual hard cutback; divide every 2–3 years. Leucanthemum × superbum 'Alaska' is a classic single Shasta daisy that rewards regular deadheading with extended bloom from early summer into autumn. Cut spent flowers to a lateral shoot or leaf to encourage reblooming. Cut back to the basal rosette in autumn. Divide clumps every 2–3 years in spring to stop the centre dying out.

Deadhead by cutting spent stems to a leaf joint or side shoot. After the first hard frost or in early autumn, cut all growth down to the basal leaf rosette. In spring, lift and divide congested plants, replanting vigorous outer portions.