This plant came with the house when I bought it. Blooming now, pink flowers, a bit like Dianthus? Does anyone know what it is and where I can get some more? Thanks a bunch.
A friend in Victoria thinks it is Lychnis viscaria.
Perhaps clarkia elegans (double flower)? https://www.allthatgrows.in/products/clarkia-elegans-double-flower-seeds
I also have this plant. Quite a special one! I have grown mine,given to me from Mary Carter. You friend is correct Lychnis viscaria. Mine hasn’t reseeded. I have just let the clump grow and it continue to flower for a long time. I almost dug all of it out one year thinking it was a similar looking weed.Luckily missed some and it regrew. I havent seen it for sale. Mary used to grow many unusual plants so am grateful to have this one.!Move photo to the right to see image of My plant image|666x500