Should evening primrose be deadheaded? Yes, evening primrose flowers should be deadheaded to promote growth and prevent the seeds from spreading.

Do you cut primroses back after flowering?

Early summer is a crucial time for looking after your herbaceous perennials. ... You can also cut back early-flowering perennials such as hardy geraniums, foxgloves and primulas, right after they have flowered.

What to do with primroses when they finish flowering?

After primroses stop blooming, dig up the plants and divide. Reduce root damage during division by holding each clump in a bucket of water and gently washing away soil from the roots as you carefully tease roots apart. Discard the old plant in the center and replant vigorous new crowns.