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Annual wallflowers, remove after flowering?

GrajeanGrajean Posts: 414
I grew my own wallflowers from seed and they have been fantastic. Now stopping flowering so should I remove them or just dead head hoping they will self seed? 


  • B3B3 Posts: 25,247
    If you deadhead, you'll be throwing the seeds away.
    Have you any left in the packet?
    In London. Keen but lazy.
  • GrajeanGrajean Posts: 414
    No seed left over but (answering my own question!) leave one or two plants that are not in the way and hope they seed. Sorry should have thought of that before posting.
  • JennyJJennyJ Posts: 8,865
    If you want to collect the seed, leave the old flowers on to form seed pods and collect them when they're ripe, then pull out the old plants if you need the space for something else. Wallflowers will sometimes flower for a second year if left in, but in my experience they tend to get a bit leggy and don't look as good as younger ones.
    Doncaster, South Yorkshire. Soil type: sandy, well-drained
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