I have lovely pink poppies in my garden. Some years they do better than others, I presume they lie dormant sometimes. I always shake the seed heads when they are ready. One year I bought some poppy seeds and did the same, but nothing came up. A friend has really nice poppies - do I collect the seeds & sprinkle them straight away, or do I wait until next year? I'm assuming I just sprinkle them now, as if they had come from poppies in my garden?