Charge tenants for ruined landscaping?

[Tamara R.]

I have some three year tenants that just signed another year lease. They were our first tenants that moved into this townhouse after we bought it. The back yard was a disaster before they moved in, but I fixed it pretty nicely for them--got rid of the weeds, fixed the brick patio, and mulched and landscaped at their request. When I installed the new bushes, I told them they would need to water them often (several times a week) until they were well established and they verbally agreed. Fast forward to now (three years later) virtually all (except 2) of the bushes died and they let weeds take over the yard once again. The weeds can be taken care of, but the landscaping is lost. I never took photos of the back yard after I finished (lesson learned), but I do have a receipt for all the bushes. Would I be within my rights to charge them for the landscaping that died (based on my costs in the receipt) if I don't replace it? (I have discovered that its not reallly worth it to do anything in a townhouse back yard but throw down some mulch, since almost none of my tenants will maintain it--hence the reason I don't plan to replace). Still ticked off that they requested the landscaping and then just let it die. The amount is not huge--about $200. WWYD?