One of my favorite plants in the garden at this time of year is Lobelia speciosa x ‘Pink Elephant’. It looks great with the poppy heads and will look equally good when the white Orlaya flowers open. Aside from being a lovely plant, it has the added virtue of having slightly hairy leaves which means the slugs and snails leave them alone – unlike L.cardinalis which they munch to extinction in my garden. It is available from hardys-plants.