Rhododendrons should have spent blossoms removed
Holes in Hosta and other leafy perennials usually are caused by beetles and slugs. Slugs can be controlled using diatomaceous earth; or maybe more happily, by Budweiser beer in a drowning dish.
Trimming Shrubbery should be finished up soon.
Check Your Sprinkler System for Broken Heads which will waste water and also impact the health of your turf and plants
Browning Turf could be a result of chinch bugs; any number of fungi; grubs; lack of water; shade-loving grass in full sun.