Kniphofia Uvaria

Wonder if someone can help.

Back in March I planted two kniphofia uvaria as small plants within a wall surrounding my patio, as pictured. Two queries. Firstly, no flowers have grown this year. Is this perhaps because it takes more than a season to flower or because the wall area provides insufficient room for full growth. The wall is 18 inches across the top. Secondly, should I cut back the leaves this autumn?

 

I think it might flower next year, it looks healthy enough, but I dont think it is a long term proposition in that small space.

I dont usually cut back the leaves but you can tidy up any dead leaves as they appear.

 

@Paul K Kirkwood
I have several different kniphofias only the mini "popsicle" variety would fit into the space you have. The others have all clumped up and are 3ft or so across. I remove dead leaves, but don't touch the healthy ones. I see K uvaria can put up a 5ft plus flower stalk, so I think it might be a bit cramped where you have got it. They can take several years to flower, although K citrina flowered the year after sowing seed.

 

One year on and I have some flowers! Yay! How, when and what should I cut back, please. They're looking pretty scraggy now.

 

I would cut the finished flower stalks off as low down as I can get and remove any dead leaves these normally come away in your hand.