Present this crazy hoot with the facts about mulch. Especially organic mulch. It prevents erosion, prevents weeds, retains moisture, allows for aesthetic pleasure, but unless you spread it on too darn thick, it doesn't kill shrubs. Mulch does have a tendency too leach Nitrogen from the ground but that is about it. Around here azealeas and rhododendrons are dying like crazy. These plants love moisture retentive, well drained soil, aka the drought killed them. The other bushes can be funny little boogers also. The junipers are very drought tolerant but if they have been neglected the drought was their final hoorah. Be nice, up front and emphatic about your position. Get her to explain in full detail how she thinks you caused this. Then present your information. Most of whats been said above and in this post. Then if she doesn't buy that tell her that if she can back up her claims with any kind of evidence/historical references/articles you'd be more than happy to look further into this and see what you can do. Kill her with kindness but don't give in. We aren't in the business to replace **** free of charge. When we get the size of Lowe's we will do it no problem.<p>----------<br>Integrated Landscape Solutions<br>Lexington, KY