Stachys spicata

I'm very pleased with this plant. It flowered for ages, (finished now though), stands up nice & straight without staking, but most of all not a single leaf has been eaten by a slug or snail. Do I dead head it or not?

I would say 'yes' deadhead. You might get a second flush.

I do love the mauveish pink.

Ty. I have dead headed it, so maybe some more flowers or maybe not. It has done well anyway. It is like the wild plant Betony, but bigger.