I'm Torn

[Cadillactaste]

I think location has a lot to play into things. I'm lake front. When my night temps are cold. It takes awhile to warm back up. Our high of the day typically hits around 3 or 4 o'clock. My nighttime temps last most of the day...until spring really is in full spring. Highs mean nothing to me at this time of calendar year.

 

[Cadillactaste]

lol.

Agreed though.

YES the roots are more frost sensitive than trees in the ground. But if you grow zone-appropriate species, normal season-appropriate spring frosts are not a huge issue. I have literraly had maples hanging over from frost and ice in the first week of april, first 2 sets of leaves extended (I know, I should have pinched!). And no damage except for the odd ripped leaf.

That is a good point you brought out. Having a cold greenhouse. The majority of my trees are not hardy to my zone.

 

[just.wing.it]

I have a couple trees that look like they'll be ready to start moving soon.

 

[JonW]

I brought mine out Monday. This weekend, we have some cold nights: 26f tonight, 30f tomorrow, 23f Sunday... Buds are swelling, but not open. However, I did a lot of fall repotting. I'll probably move those trees under my bulkhead / storm doors overnight.