b2b b2c infomations

If it hasn’t bloomed yet, a regular frost won’t really hurt it. The biggest concern is when it has flowers on it. If the flowers have already fallen off, frost isn’t that big of a deal, either. You can cover them with bedsheets if you’re worried about a real cold snap. Just be sure you don’t put too much weight on them (use props to lighten the load). Cold wind is more of a concern than frost, if there’s no flowers present.

If it’s only going to be one night, and you can cover it without breaking branches, it certainly will increase the chance of it making it through unscathed.
However, if you live anywhere near me, I have bad news for you. It’s going to frost here tonght – but that isn’t the big picture. It’s going to freeze every night for FIVE NIGHTS here – only getting up into the 30′s and 40′s during the day – and the last coule night may be 20 degrees. This is after a week of lovely weather in the 70′s, with stuff popping into bloom everywhere.
My peach tree has buds too. Just beginning to break. nuts. The problem is that when it gets THAT cold (20 or so), the covering strategy becomes less effective. You can always try, but it may not be enough to save your blossoms this year. If it’s going to get that cold, one of the only things that will truely work is the smudge pot. Orchardists sometimes use them in desparate times. A big caldron-like thing, with a slow fire, placed every other tree. And kept burning through the cold hours of the night. It will keep the air temperature around the trees moderated enough to prevent cold damage.
So – in a nut shell…light frost = cover gently. Hard freeze = oh drat, maybe next year.
Small consolation, but the trees themselves will be fine.
I expect to lose my peach blossoms, plums, and cherry blossoms in the next 5 days. My apple trees may be okay because the buds are still tight. My pears – too close to call.
Momma told me there’d be days like this….

There are 2 questions to be answered: where do you live that frosts might be a problem, and how big is your tree, is it established or a newly-planted sapling? Normobri is right about the weight; the tree should be covered with something if you have a real concern about cold nights, but a blanket will be too heavy for young branches – they might break or snap. Maybe just a thin plastic painter’s drop sheet will do the trick if you anchor it around the edges or wrap a tie around the trunk. Then, William says to spray the whole thing with water; I seem to remember that farmers do this in their orchards to create a thin layer of ice in case it gets that cold. For some strange reason, a coating of ice acts as an insulator; perhaps against wind that might lower the temperature due to the wind chill factor. I live in So Cal and grew up in my grandparents’ house; they had 2 peach trees and a nectarine. Frosts used to be worse when I was a kid than they are these days, but my g-’rents never did anything special for the trees through fall, winter, or spring, and always had more peaches than they knew what to do with. I think you’ll be OK, Nature will take care of it.