Linda, mine get brown tips by the end of July. Doesn't faze it much, simply looks bad. Honestly, I don't do anything to it except occasionally give it some water. Keeping yours out of direct sun for most of the day is good. It was time to let mine have more room. Will see how well it does. Don't give up on yours unless it just keels over dead, okay?
Kabby, I don't sow seeds for the most part. Have never had much luck with it and prefer plants. I'm decent with keeping those going. Have seen several NGA folks using Solo cups effectively. And it is cheap, too.
The one big tree left alongside the driveway still has some living parts. Leaving it in place for now. If I wait until it rots from the base like the one a couple of weeks back it will come out much easier.