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.    

[Pepe Ramon]

I sowed direct into my final pots last year but this year I started seedlings in a tent under a light.

 

I'll be reverting to my original method next season, so I'll be sowing my seeds directly into 150ltr fabric pots in late March early April next year, depending on what the moon cycle is.  

 

I believe with outdoor plants it's important for the tap root to get as deep as possible into the ground it's growing in, sowing into small pots inhibits this growth as the tap root just goes round and round the pot, plants with deeper tap roots will be more drought tolerant, which for me living in Spain is vitally important.

 

Obviously not everyone has this option, I'm lucky in that I can virtually guarantee that there will be no frosts after February so I can get an early start.