I am to the east of you in Oakdale. We were getting a few nights in the 20's and more in the 30's over the last 2 months. Lately night temperatures are in the low to middle 40's. Many of my roses have new shoot buds breaking and spring growth has begun. This is the time that I usually begin fertilizing my roses.

I'd think you'd want to wait until you are confident you won't have damaging freezes. A short dip to a low temp usually won't hurt much. We aren't having anything quite that low and I've continued using half and half of organics and Gro Power Plus on my clients' roses. It's worked quite well with no potential for burning anything. The combination has seemed to feed both soil and plants well as they grow nicely and never stop flowering. Unfortunately, I can't use horse manure in their gardens due to dogs and small kids everywhere. It's their preferences. Kim

Here is a link that might be useful: Gro Power Plus

Horse manure is good for kids and dogs! Dogs love the taste (and it's certainly not bad for them), kids don't.

Thanks much for your replies. My gut was telling me to wait a few more weeks. I think I'm going to do that :).

You're welcome. I agree about the manure, but the "moms" hate the ideas of puppies eating it then licking them, and the kids playing in it. Go figure. Kim