Spindly clematis

Dorcascents

I have a clematis in a lage pot,flowers in June blooms near the top mostly but not and abundance of flowers. Feed it springtime up until flowers fade.The growth is very sparse. I Cut it back now September and new growth is now evident.can you advise what I can do please.

Richard Hodson

If you can please supply a name or a picture of the flower then it is possible to decide the correct pruning regime for your plant.  How many stems are there ?

Dorcascents

Hi Richard, sorry that I missed your comment a few months back.i returned to GW forum and find it. The clematis is 'Rouge  Cardinal'. pictures are too big I  need to look how to reduce size,

Fire

@Richard Hodson

Fairygirl

Hi Dorcas - if it's Rouge Cardinal, you need to cut it back hard in late winter/early spring. Keep it well watered, and it should produce more stems [and flowers ] as it matures. If it's in a container, it needs to be a big one, and you need to make sure it has a suitable medium to grow in - not just compost. 
It should be flowering at this time of year. It goes on for ages if it's happy. One of my favourites, and I'm about to get one for his garden, having had it in previous gardens. It's a really good do-er, so look after it well and it will reward you   
If you can resize pix to around 1MB, they'll load more easily. You should have that facility on the device/server you use, but if not, there's a guide somewhere on the forum to help. If I can find it - I'll do a link 

Fairygirl

https://forum.gardenersworld.com/discussion/1013057/how-to-resize-an-image#latest

Think this is it - you may need to go back a few pages to find out the method 

Dorcascents

Thank you Fairygirl for your help. Cardinal Rouge did not flower but I will be patient for next year, A while since I have been on here but I will master reducing size of my photographs