I love nasturtiums, Hazel. One favorite childhood memory is my grandfather's nasturtiums growing in the sun beside his old brick kitchen chimney. He had a massive cottage garden, yet I only clearly recollect the nasturtiums. And sunflowers.
Don't worry, I'm starting to think that cultivated roses are doomed in my hands too, I've lost a lot this year. Mind you, it's been the worst year ever for Black Spot, and funnily enough, too dry in the Spring .... and they've been neglected because we're too busy trying to control that cursed Fairy grass.
I must get to bed, very late here and I have to be up early to water the garden. No rest for the wicked. LOL.