Did a little research: one site said colder temperatures will change plant colours, another site said that many flowers will change colour after pollination. Don't know if this helps but I thought I'd share it.
Thanks @gjones you could be right's its a mystery as it looks like the lavander lady variety of which I've just planted a seedling alongside maybe that's effecting it not complaining though the flower is stunning ☺
@ladylucy thank you I would love a different type of passion flower to mingle in with my existing one but none of the gardens centres I've visited have any passion flowers. I bought this one last year from the pound shop and what an amazing growth in a year 🌞👍
I will look in our garden centres here.I am going to a very large centre today maybe they will get different types of them not now later on.Are you far away we are in Sussex.Thanks anyway yours is gorgeous it's amazing what you can get in pound shops!@dbligh
@ladylucy sounds fab I think I will have to try a bigger garden centre or online I did see seeds on ebay but the last seeds I got on ebay were duds no growth and they were only delphiniums so wary of eBay for that reason 👍☺