They were 4" tall and their tops pinched off, but not had an issue with them in previous years. Are some varieties more resilient than others? (This year, I've grown Zico, Xanthos and Apricotta). Also, had grown some for a friend in small modular cell trays (104 cells, and kept in their polytunnel) where they were well overdue to being planted out by at least 4-6 weeks. The stems were quite strong and they produced the most tallest plants I'd seen before (4 plus feet tall).
The ones I have now from about 20 plants, I have about 3 decent ones left, although they haven't grown a great deal at 6" tall.
Next year, I'll have to grow them in the greenhouse and leave them for May planting.
Yesterday, I went to the Garden Museum in London and was sorely disappointed by how small it was and felt it wasn't worth £14 entry fee. They didn't even have a garden as such only the grounds of the small churchyard. The only interesting garden was the courtyard that was designed by Dan Pearson which was lovely to see.
Afterwards, went to Regent's Park to see the summer flowers at St. John's Lodge. I think it's the best part of the whole park (I like the rose garden, but it's always got too many people in it for my liking).