my leeks have bolted

Question

They are no good to use as the centre is like a piece of wood. How do I stop this?

Answer 1

Warm weather will cause the Leeks to bolt,this is out of your control.
Don't fertilize as this will cause them to grow faster.

Here is a link with more information.
https://www.gardeningknowhow.com/edible/vegetables/leeks/leeks-bolting.htm