Another Wintering Question

[vicn]

Here is how I normally overwinter my trees: Trees on the ground next to a fence on the South, and a garage to the North as a wind block. Framework with plastic over all, BUT, the plastic stays off until the temps go below 15°F or there is a big ice storm coming. So I have shade all winter, windbreak, and protection from severe cold/ice. Has worked for years with no losses.
I can't use that this year, but I have a similar set up with ONE exception....gravel, rather than ground. I'm at the edge of 5 and 6. So is an established gravel walkway, sitting on soil, as good at insulating as open soil? I have the same shade, wind protection, and cover. Thanks

 

[Dav4]

Here is how I normally overwinter my trees: Trees on the ground next to a fence on the South, and a garage to the North as a wind block. Framework with plastic over all, BUT, the plastic stays off until the temps go below 15°F or there is a big ice storm coming. So I have shade all winter, windbreak, and protection from severe cold/ice. Has worked for years with no losses.
I can't use that this year, but I have a similar set up with ONE exception....gravel, rather than ground. I'm at the edge of 5 and 6. So is an established gravel walkway, sitting on soil, as good at insulating as open soil? I have the same shade, wind protection, and cover. Thanks

Gravel is fine and might actually be better as it provides better drainage then typical dirt, particularly when frozen.