How to prune zinnia elegans 'zahara starlight rose'

Continuously through summer and into autumn. Cut spent blooms back to a healthy lateral shoot or leaf pair. Remove any yellowed or diseased stems at the base to improve airflow through the plant.

Deadhead every 1–2 weeks; thin congested stems as needed. Zinnia 'Zahara Starlight Rose' is a disease-resistant mildew-tolerant series that deadheads itself reasonably well, but removing faded blooms still extends flowering. Cut spent flowers back to a leaf node or side shoot. Occasional thinning of congested stems improves air circulation and reduces powdery mildew risk.

Cut spent blooms back to a healthy lateral shoot or leaf pair. Remove any yellowed or diseased stems at the base to improve airflow through the plant.