Temperature for outdoor seedlings

[childofmelee]

What is the day temperature and night temperature when you put seedlings outside, and how old are the seedlings when they go outside?

[BilgePump]

I tend to go off my last predicted frost date and then leave it a week, you can look this up online easily enough.

 

Not very old, being seedlings n all that

 

[Revive]

Ideally when the night temps hit double figures to save any stunting that tends to happen when it's too cold.

Autos can go out at about 2/3 weeks old, these generally start to flower at about 4/5weeks

and everything else after about a month but there's no real limit really for these as such more about them being big enough so there not too fragile but not too big making them a pita to transport.

[OldFord]

I plant outside earlier than most due to aiming for a 1st june flip in dep. 

 

My seedlings hit the greenhouse middle of march .... results ....in all my diaries 

 

I think the cold start does sort out the wheat from the chaff ,  makes for a stronger plant and denser root system.   
 

the legend @brock1 only germinated outdoors in cold temps to select the strongest.