Q.Lavender To Niamniamemsis
My father took a cutting from a lavender plant, but when it bloomed, it turned out to be a niamniamemsis. The original plant is still a lavender plant, at my father’s friends house, and she doesn’t have any niamniamemsis plants around. How could this have happened?
Certified GKH Gardening Expert
This plant was most likely grafted from a rootstock of impatiens; the original took over when the cutting was propagated. There are many reasons why garden nurseries do this; it's usually to improve the existing plant's root system or other attributes. Here's a link to a page with several articles about grafting. I hope this helps: https://www.gardeningknowhow.com/garden-how-to/propagation/grafting