Dividing crocosmia

[Sunnywaves]

Can I split and move my crocsmia now before it flowers or is it best done in the winter?

I'd leave it till after flowering, but in my experience nothing you do to crocosmia will kill it.

If you need to move it now, do.

Thank you, I.m a total novice and all the advice was about splitting the roots but nothing showing the whole plant.

What looks like a single clumping plant will be dozens of separate plants each coming from a corm. So you're just trying to split a clump of dozens of corms into two clumps of fewer dozens of corms. Even if you completely damage roots, there'll be enough energy in the corms to come back next year.

Split it with a spade. Any time. No need to be delicate. It’s indestructible although you may get less flowers the first year. I currently have a clump growing sideways on the ground that I haven’t got round to putting in for at least a month.

I'm surprised crocosmia hasn't taken over the world; it's indestructible and can be a thug. Have at it!

Do what you like to it. Mine is taking over the garden, if I don’t stop it shortly I expect it WILL take over the world. I’m going to dig it up and try to spread it round the entire garden to see if there’s anywhere that it won’t grow. I suspect the answer will be no. I once had one happily flowering away in a totally empty bucket. No soil, just a bucket with a lump of crocosmia.

Just stick a spade in it and get as much out as you can/want. It’s certainly a thug! Although I have an area in my front garden which nothing grow in and not even the crocosmia survived!