If you haven't fertilized your rhodys yet this year, forget about doing it until next spring. It's too late to be encouraging new growth that could be damaged by winter freezes. In fact, this is a good year to forget about fertilizing most plants except for flowering annuals. Rapid growth means plants will need more water to survive and this is probably going to be a dry year. The less stress possible is best for all your shrubs and trees.
Lawns also can get by without any more fertilizer.
In fact we need to be good stewards of the land and have second thoughts about the nitrogen fertilizer runoffs into our water systems. Take off the bagger on your lawn mowers, set the height of the mower up an inch and let the clippings fall back and naturally fertilize the grass. Just be sure to mow often and not let the lawn ever get too tall. I finally broke down and purchased a motion-activated sprinkler to protect my vegetables from the marauding deer. I was fortunate to be able to attend the lecture last month by Ed Hume at the Point Fosdick Ace Hardware store.