I've grown Alliums and Emperor Fritillaria for the first time this year but I'm not sure what to do with them now they've finished flowering. Can anyone help please?
I leave my alliums where they have grown as I like the seed heads: there is a chance that the seed when dry will fall out onto the ground and germinate, but I've never had a problem with allium seedlings. Much later on, the stem will go all brown and at that stage, you can just pull it straight out of the ground if you want to and it won't damage the bulb.
Your Fritillaria - do you mean a crown imperial like this...?
If so, the stem should die back naturally and then when it's all brown, you can cut it off back to the ground ready for the bulb to flower next year.
Thanks so much for your advice. I did mean the Crown Imperial Fritillaria. I was really worried about doing the wrong thing so your help is really appreciated.