hi professional gardeners,

mentheslover(6athru7ainmycounty)April 17, 2008

Hi, i have a question about frost/freeze protection and red lace leaf japanese maples(acer palmatum. First off, will a 33 degree hard frost kill the fresh leaves and buds, and secondly, is there any form of clear plastic, or plastic-like draping which is safe to put directly on the leaves thru a freeze, and then leave it directly on the foliage during the following day(sunny and low 60's)? Someone told me there is a professionally available product that can do this, is it just bull? thank you for your time,

Thank you for reporting this comment. Undo
gardengal48

First, 33F is not a hard frost, it's not even a frost at all (must below freezing or 32F for it to be a frost) A "hard frost" is considered to be a sharp drop in nitghtime temperatures where both the air AND soil temperatures drop below freezing....something in the mid to low 20's at this time of year could possibly qualify.

You never want to put plastic over a plant with foliage (especially tender, new foliage) and leave it on during the day as well. Just like a greenhouse, daytime temperatures and sunlight will cause the temperature under the plastic to escalate drastically and you will burn your plants. If you want to resort to any plastic for protection, put it on at night and remove it in early morning, otherwise use a woven material made for this purpose, often sold as remay or harvest cloth. But if you are looking at temperatures only in the 30's, you don't need to bother at all.

    Bookmark   April 17, 2008 at 11:32PM
Sign Up to comment
More Discussions
wilt pruf sprayed and froze on junipers
Hi all, I have a small garden in New York City. The...
happygardengirl
Fungicide for damping off of food producing plants?
What would be a systemic fungicide that could be used...
ms_minnamouse
Anyone can help with the type of this tree
Hi, Anyone can help with the type of this tree in my...
hamidrm
Landscaper has business in residential neighborhood with HOA
I live in a neighborhood which does not allow you to...
diddlydoo
POS systems
I work at a nursery and the office manager asked me...
christinmk z5b eastern WA
© 2015 Houzz Inc. Houzz® The new way to design your home™