Can you recommend a flowering spiller for damp pot?

[Koulibiak]

Last summer I picked up a (free) reconstituted stone planter on a pedestal from my neighbour who hates gardening. It looks great, but doesn’t have any drainage hole. I put a half dead junca spiralis in it (from the clearance section at B&Q), it has grown like crazy and looks very happy - which makes sense as it’s a pond plant. I keep it very wet.

I then added creeping jenny as a spiller, which has also done very well and looks happy with its feet in water. But I would like a flowering plant to add a splash of colour. The pot doesn’t have enough room for fillers, so the flowers would have to come from the spiller and must be happy in a wet pot. I’ve done a lot of googling but am drawing a blank. Any suggestions would be welcome. TIA

It doesn’t need to be something I can plant now - I’m just planning ahead for spring 🌿

Isn’t Creeping Jenny a flowering plant?

Ragged Robin (Lychnis flos-cuculi), Primula viallii, Candelabra primulas, Mimulus, worth looking at, but the first three are upright. Possibly Water forget-me-not if it doesn’t dry out in summer. Or try Veronica beccabunga. Ajuga can take it quite damp.
(I’m imagining myself on a Yorkshire Dales marsh and trying to remember the things that manage the transition between dry summers and waterlogged winters)

@MereDintofPandiculation i wouldn’t grow creeping jenny for the flowers. I think its appeal is in the leaves.

Anyway, thank you for the suggestions. I was hoping for something a bit more exuberant like morning glory. I might try lobelia, mine always seem thirsty.

Yes, Lobelia as a genus likes damper soils. There’s a tall red one which likes pond edges but you’d presumably be after the low blue one. Erica tetralix is a plant of bogs and can look showy. What’s going to be difficult is finding something with large flowers.

The easier solution would be to drill a drainage hole, but I imagine you are nervous of splitting the pot

Thank you. I have lots of pots with drainage, so this one pot is my chance to grow different (boggy) plants. I doubt the juncus would do as well if there was more drainage. I will look up Erica.

It’s you need, not E. cinerea or E. carnea