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Originally Posted by Tursiops2  Ok, sounds simple enough, but when should I do this? When all the flower heads have gone to seed? When the heads have dried out a bit? |
I saw Carol Klein sow some in the green that is green seeds but sown straight away, not sure if you can do this with all seeds especially if the plants are not hardy or annuals.
otherwise I would wait till like you said and collect them when the flowers have died off.