Which plant are you referring to the one with the white or the mauve flowers?

They are both hibiscus shrubs. The one on the right is probably the variety 'Bluebird.'

I agree with Andrew :o))

Here in the US they are called 'Rose of Sharon' and it's really a hardy hibiscus.

Welcome to GoY Sharon! In the carribean you are used to the tropical hibiscus, in hotter shades, which is probably why you didn’t recognise this beauty.....don’t be waiting for the humming birds to visit it though! ? Watching the humming birds feeding on Hibiscus flowers is one of my favourite things about being on holiday in the Caribbean....happy memories.

Hello, thanks for all your responses and helping me identify my plants. I didn't realise they were hibiscus, they both do so well each year.

Thanks again and happy gardening!