Perennial pea plants

I got some seeds of a white version of Lathyrus perennis. Germinated nicely, so when to pot on?
I have grown them before but only from a spring sowing.

 

Hi

you need to keep frost free , what size pot are they in now . Where you keeping before you plant out in the spring

 

I'm assuming cold greenhouse?
I think I would have sown singly so no potting on until spring, I'd be wary of potting anything on this time of year.

 

That's what I thunk. They can stop as they are for now. They are in a reasonably deep pot.

 

Maybe I am missing the point...but perennial peas? Are we talking about the flowering ones or is there a pea that you can keep going for a long time?
If the former...then once it gets going it takes over not just the first place but all over the garden.

 

As I said, Lathyrus perennis. And I know what it can do, we have the one sold as Pink Pearl, on the wall outside the garden proper. Controllable with a little effort. No worse than the red perennial nasturtium that one often sees growing over conifer and yew hedges.

 

You actually see the perennial nasturtium in west Midlands? I thought it was only happy in Scotland! (I'm assuming tropaeolun speciosum)

 

We do indeed have a perennial tropaeolun, probably speciosum and it is all over one border. Never managed to propagate it though. The roots look like Bindweed roots so we have to be careful as our neighbour likes Bindweed for the big white flowers.
Also seen it at Wightwick Manor in Wolverhampton, so not only in Scotland

 

How lucky @Palustris ! And you are obviously doing something right. I have tried multiple times, from seed and once from bought roots. The latter flowered gloriously. Then died over winter...

 

I had the perrenial Pea in Bucks and I just kept it neat. I have some seed now but can't decide where to plant them.

 

ive seen the perrenial sweet pea around here, it does spread but not much. its not moved from the spots i saw it 10 years ago, but it makes babies underneath it where the seeds drop.

i think just sow it and leave

 

In my last house , formed a clump and that was that, re grow each spring

 

There is a nice dwarf perennial pea lathyrus vernus albo-roseus. Doesn't spread, doesn't climb. But sadly, no perfume.
I've never managed to grow the white sprawling one - only the Barbie pink one