Sort:  

They're real flowers. But they're dyed an artificial color. I suppose in their original version they were white and accepted the dye without any problem.

If rose bushes or flowers are too old for cultivation, the flowers on these bushes revert to their original colour from before the new variety was grafted onto them. The same applies to white roses. It’s interesting that they absorbed the dye and have dried so neatly without shrivelling.