Container Grown Clematis leaves discoloured

Hi All,

First post here so hello first off.

I'm hoping to get some advice on a clematis Armandii, which is currently in a container.

Planted last year (2019) at the beginning on April, the plant was around 6ft tall at the time. It has been placed against a South facing wall and for the last year has been doing great. Grown lots, with several new shoots from the pot emerging and making their way up.

I have 3 others in separate pots and those have grown more but not offered any new shoots from the pot.

This one hasn't flowered particularly well, which I'm not overly concerned about but I've noticed in the last week a fair few brown and dried leaves, some of the stems have died completely and most concerning is that many of the leaves have a blackish spotting over them.

This clematis is in a well drained pot, is watered 2-3 times a week at the moment and has been feed twice this year with liquid seaweed. I drilled into the bottom of the plastic container to make sure it wasn't sat in water, the soil is moist and well drained.

Im in the Staffordshire Moorlands, around 1000ft above sea level so it does get a bit cold over winter (!) and a bit windy, so I get the odd brown tipped leaf from wind damage.

Suffered slightly from green aphids last autumn but they seem to have gone over the winter

This plant is due to have a raised bed built around it and the pot will then be removed but with the current situation in the UK finding building supplies is a little difficult so it won't be replanted till latter this year now.

Any suggestions on what I've done wrong?! It was doing really well until a few weeks back!. Some images attached.

Thanks in advance.

Adam

 

Hi adam welcome i looked on the net as regards your plant that might help you

1. How To Grow Clematis In Containers - Gardening - Learning ...
   www.learningwithexperts.com/gardening/blog/how...
   The best clematis to grow in containers in the small garden These are the newly developed varieties that only grow to 3-4ft (90-120cm. They flower most freely from late spring to early fall; sometimes resting in the heat of mid-summer.
   
   
2. Potted Clematis Plants - Can You Grow Clematis In Containers
   www.gardeningknowhow.com/ornamental/vines/...
   Clematis planted in a container requires regular irrigation because potting soil dries quickly. Check the plant every day, especially during hot, dry weather. Soak the potting mix whenever the top 1 or 2 inches (3-5 cm.) feels dry. Fertilizer provides the nutrients Clematis needs to bloom throughout the season
   

 

Thanks for the Links, Janet.

I’ve read through them but I’m afraid they don’t address the issue with the leaves on this clematis.

Its been a healthy plant for the last year.

 

Thanks ARMANDII, for your in-depth message.

I was most worried about the leaves with black spots, but if you think it'll be ok I'll continue to keep an eye on it and continue with regular watering.

It will be going in the ground later this year, fingers crossed!

The pictures of your clematis are fantastic,