How to Prune geranium 'Citronella'?
Remove spent flowers and trim as required

geranium 'Citronella' · Pelargonium 'Citronella'
Grow in neutral or alkaline, well-drained, moderately fertile soil in full sun. Lift outdoor plants, or take cuttings, and keep in frost-free, well-lit conditions over winter. See also pelargonium cultivation
Remove spent flowers and trim as required