I'd give them another month before planting out and make sure to protect them from slugs and snails who will love them!

Hi kate ;) not sure about the bells but the poppy almost certainly can be planted out now, their a hardy plant and the bigger the better for surviving winter, mine have no trouble surviving whatever the winter throws at them including the last winter,some of my new growth from my april flowers this year are flowering at the moment and who knows if we have a warmer autumn theres still time for you to get a flower but only if you plant out now.

thanks to you both :)

The only reason for waiting till autumn is to do with water supply - planting now means you need to keep them regularly watered yourself.

The ground is warm at the moment and as long as you keep them watered it is a good time for them to get their root systems established.Go for it, plant them out!