Growing Herbs - When should I transplant? What's next?

[ladybug1]

I'm trying to grow herbs for the first time and they seem to be growing but the problem is I have no idea if I should transplant them/separate them/put them outside(it's cold in Iceland though, maybe like 40-60 degrees fahrenheit) or in bigger pots...
Coriander:


Parsley:


Basil:

[applestar]

They need to be hardened off first -- gradually accustomed to sun and wind as well as rain and temp fluctuations. But Coriander can definitely go out -- it likes cool weather and prefers to be kept moist. It also doesn't like it's roots disturbed too much, so water well before separating, and be gentle. I find that putting the transplant's root ball in the hole and adding water 1/2 way up before filling with soil works well to ease the transplant shock. Parsley should be OK to go out -- better to be 45 degrees or more, I think, but the Basil doesn't like the cold and shouldn't go outside until temperature stays above 60ºF.

You should separate the basil into individual pots now. Start pinching the tip growth after 3 or 4 pairs of true leaves develop so they can get bushy. The parsley and coriander can be planted in clumps of 3 or 4. You can pot up the parsley clumps for now if you want to wait.

I think you're the first person from Iceland that I've met -- anywhere!
Welcome and happy to meet you.

[ladybug1]

Thank you so much for a great answer and nice to meet you too. I'm a complete rookie when it comes to gardening but I really like fresh herbs so I thought I'd give it a go. Your answer is very helpful and since the weather is nice I'm gonna go and plant my coriander outside now:)