Most of my Lychnises are from seeds sown to use as fillers. Some of them have interesting ornamental characteristics that I want to keep them around in my garden. They are easy going plants in full sun here. The only problem is some tend to be short lived, and need to re-seed every few years. Some of the Lychnises are interesting delicate rockery plants.
The flower colour is a little too bright and hard to mix with others, but the silvery foliage is what I want. It self-sows quite a bit, bordering on weedy.
Lychnis flos-cuculi ‘Nana’
This delicate rockery Lychnis is a treasure.
Its grass like foliage and tall spike of pink flower make it useful as an interesting filler among conifers etc.
Lychnis viscaria ssp. atropurpurea
This has much darker flower colour than Lychnis viscaria. It is not pink and looks more ornamental to me.