How to prune cosmos bipinnatus 'sensation white'

Continuously through summer; pinch once in early summer when young. Deadhead by cutting back to a lateral shoot rather than simply pulling off flower heads. Pinch growing tips on young plants above the third or fourth node to encourage bushy branching.

Deadhead weekly; pinch once when young; cut back if flopping mid-season. Cosmos 'Sensation White' blooms prolifically with regular deadheading. Remove spent flowers by cutting back to a side shoot or leaf node to stimulate more blooms. Pinching young plants once when 30 cm tall promotes branching. Cosmos can become top-heavy — cut back hard by half mid-season if plants flop.

Deadhead by cutting back to a lateral shoot rather than simply pulling off flower heads. Pinch growing tips on young plants above the third or fourth node to encourage bushy branching.