Gaura lindheimeri.

about the only thing that will knock this type of thing back.. is severe repeated drought ... and two large dogs who trample the heck out of it ... that piece will probably root ... in a glass of water .... you could probably propagate a bunch of it.. by filling a flat with media... and laying/sticking a bunch of pieces on top .. and setting it all in shade .... and by fall most will be rooted .. with just a little water now and then ... unless its the one sedum in the universe ... that is somehow foo foo .. lol ... ken

grubs can usually be found in the lawn.. in the grass roots.. if you might care to dig up a small patch to find them.. though i should say.. usually there are dead patches all over the lawn.. because they are eating the roots.. https://duckduckgo.com/?q=grub+lawn+damage&t=ffab&iax=images&ia=images when there is a bad infestation.. the robins start digging around and eating them ... as with any bug..one or a few is never a problem.. its when its one of those 10 year plague events.. and there are millions of them ... and that is when some action needs to be taken... unless yo just want to go all morticia... and like leaf less plants... https://images6.fanpop.com/image/photos/39700000/Morticia-trimming-roses-animated-gif-the-addams-family-1964-39772240-500-367.gif how large is your plague.. if any ken

Natural and artificial light has changed the wall color. Look under the art. It is most likely the color on the wall. Makes sense as it works better with the rug. Maybe Silver Satin? Try the different light influences on it...particularly afternoon light and night light. https://www.benjaminmoore.com/en-us/paint-colors/color/oc-26/silver-satin