I've got a neighbour that has the most stunning blue border of borage, nigella and lobelia, and I was absolutely captivated by it.
I would love to plan a monochrome border but the trouble is I walk into a garden centre I see a plant that I fall in love with and suddenly I have to find space for it somewhere.
Also if you'd have asked me what I thought of geraniums a few years ago I'd have said boring and I wouldn't be caught dead with them, but my local nursery has a greenhouse full of the most beautiful and interesting geraniums that I've suddenly developed a bit of a collection.
My late next door neighbour had a garden full of them, always looked stunning, he was out before the birds pruning them every day, so I feel like it's a nod to him in a way. Our new NDN just flagged over the entire garden.
His wife was called Marion and when she passed he started adding some maid Marion roses, and not a day after our new NDN took over she already had them in a skip under tonnes of earth they'd excavated out, I was absolutely gutted because I'd have loved to try and save one or two if I'd had known what was going to happen.