How to prune penstemon 'husker red'

Mid-spring once new basal shoots are clearly visible (not autumn in cold climates). In mid-spring, cut back all old woody stems to just above the lowest healthy new shoots emerging from the base. Deadhead spent flower spikes during summer by cutting back to a lateral bud or leaf node to encourage more blooms.

Once annually in spring; deadhead throughout summer. Penstemon 'Husker Red' is a semi-woody perennial best pruned in spring rather than autumn, as old stems protect the crown over winter. Cut back to healthy new basal growth in mid-spring once new shoots are visible. Deadhead to prolong flowering. Avoid a hard autumn cut in cold climates, which can kill the crown.

In mid-spring, cut back all old woody stems to just above the lowest healthy new shoots emerging from the base. Deadhead spent flower spikes during summer by cutting back to a lateral bud or leaf node to encourage more blooms.