Deadheading Shasta daisies should be done yearly and takes only a sharp pair of pruning shears or a knife. Make sure to wait until after blooming for best results.
- Wait for flower to fade
Wait to deadhead the Shasta daisy until the flowers start to wither and fade, which occurs when the daisy blooms start to turn brown.
- Use a knife or pruning shears
While you can pinch back blooms, using a knife or pruning shears yields better results. Make sure either implement is sharp and clean.
- Cut to first set of leaves
Take the spent bloom's stem back to the first set of leaves when you prune. This assures new growth and stimulation of blooming.