Ailing star jasmine - brown leaves

madoldbat

Hi all 

I've had a potted jasmine since last year which has grown beautifully and produced great flowers last summer. This year it has grown somewhat, but a lot of the leaves turned yellow. I've been feeding it with Tomorite (as per RHS advice) and the yellowing has stopped but now there are large brown patches on the leaves. I have been watering it regularly and evenly but don't understand why this is happening. It has a few flowers but not covered like last year.

I've fed it every 3-4 weeks for the past couple of months.

Any ideas? All advice welcome.

Many thanks

MOB

madoldbat

Hello.

Pete.8

Hello.

Star Jasmines can be grown in pots, but they get to be big hungry thirsty plants in the summer.
You feeding regime sounds good, but something is wrong. The compost drying out this time of year will cause weakness, but a photo or two would help us come up with some ideas for you.
Maybe it just needs to be in a bigger pot

madoldbat

Thanks very much for your response and you may well be right about needing a bigger pot. I will try and put a couple of pics up which may explain it better.

Thanks again!

MOB

Sheps

I think Pete is right about a bigger pot, mine are in really large pots, which are about 60cm in diameter x 40cm high.

Also, mine looked shockingly bad in Spring, but as we have moved into Summer they have really perked up producing loads of flowers.

Looks like the picture problems are back, the above picture only has a file size of 383kb which is tiny 

Last edited: 23 June 2017 17:20:36

madoldbat

Hmmm many thanks for your responses and it looks like I'll have to get a bigger pot. Having said that, the plant is looking a lot fresher today in the cooler weather and I've noticed the brown leaves are all old and the new growth (there is plenty) is looking how it should do so maybe it is just the old leaves which have been affected. I'll wait till the end of summer and if it is still bad I'll repot it.

Thanks again all,

MOB

Pete.8

If later in the season you see black 'powder' on the leaves you have a scale insect problem. Usually caused by lack of water weakening the plant and allowing them to get a hold, star jasmine seems very prone, at least in my experience
New leaves will look good, it's how they look in a few weeks that matter. 

good luck to you and your jasmine

Borderline

Just an idea. If you need to grow them in a pot, why not cover the top of soil with a thick layer of gravel. Keeps the soil cool and minimise stress and big fluctuations in temperatures.