Frost ???

[big rockpile]

They are calling for frost Tuesday and Wednesday but only suppose to get down to 38F both days.

I'm thinking bring in my For Sale plants and Tropicals the others mainly wait and see.

What do you think?

big rockpile

 

[big rockpile]

Told son to put Mulcher on the Mower.

I an't got time!

big rockpile

 

[Oliver Buckle]

Bring in any non-hardy plants you can, That is usually restricted by time or space, so go for the important ones first, but it won't hurt anything not being cold. The only exception I can think of is amaryllis which need a cold period to flower next year

 

[Anniekay]

38 is too warm for frost. Frost forms at freezing which is 32° f. If you have tropicals that can't withstand 40°f or below, bring those in.

 

[Meadowlark]

38 is too warm for frost. Frost forms at freezing which is 32° f. ...

Not true. I've had it form at 38 deg F many times and it will kill tender vegetation.

According to National Weather Service, "exposed surfaces temperatures from 38 to 42 F can lead to patchy frost, 33 to 37 areas of frost, and 32 and below widespread frost/freeze."

 

[Anniekay]

Not true. I've had it form at 38 deg F many times and it will kill tender vegetation.

According to National Weather Service, "exposed surfaces temperatures from 38 to 42 F can lead to patchy frost, 33 to 37 areas of frost, and 32 and below widespread frost/freeze."

That's true when soil temps are cold. Soil temps are not cold enough until after the temperatures have been below freezing during the day. This is how I was taught. The air temperature at soil level has to be @freezing for frost to damage plants when the air temps are above freezing because warm soil radiates heat. At 38° f, with soil temps above freezing, no frost is going to land on the plants.

 

[blenor]

We had our first air frost last night. The garage roofs had turned white. Most tender annuals - even banana plants which are sheltered close to the house - are still OK. So nothing like a ground frost which would finish these off. A warning sign to protect or bring in anything vulnerable.