Euphorbia cut back?

Can I just ask a quick question? Should I cut my euphorbia back to the base? I’ve never grown these but purchased one last year. I absolutely love it and don’t want to lose it.

 

I would say yes, but wait until the flowers are finished, after that you should get new shoots grow that will flower next year.

 

After flowering, you can cut back the flowered shoots and new shoots will replace them.

 

I often take out stems completely - back to the base, but usually it's just when the bracts/heads are completely spent.

Just be aware of the sap @Markymark, which can be a real irritant. Decent gloves, and don't get it in your eyes!

 

In addition, you should already see new shoots and can cut back the old ones once the flowers are finished. I wouldn’t cut immediately if there were no new shoots.

 

I think the sap problem is sunlight related, I remember getting some on my arm in the very sunny lockdown spring of 2020, and not knowingly sitting in the sun afterwards, it took most of the summer for the burn to go away and it seemed to get made worse every time the sun got on my arm.

 

I cut back a load of the very small one that's quite invasive @pete [can't remember the name] a few years ago. I was very careful gloves etc, but I'd obviously wiped the corner of an eye - with the glove on. Had to go to the doc...
Fortunately, it cleared up quite quickly.