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Star Jasmine (trachelospermum) leaves brown

stefano.francoybo6916ustefano.francoybo6916u Posts: 3
in Problem solving
Hello experts!
I've had this Star Jasmine for 3 years... This summer it flowered really well and was very healthy, but now (October) has these worrying brown patches on a few leaves. 
Can anyone help me identify the problem?
(In case it's relevant, we had a patio built next to it last spring... And I also planted a rose next to it which now has black spot).

Any guesses are appreciated!
Thank you

Posts

  • Pete.8Pete.8 Posts: 11,340
    They are evergreen, but even evergreen leaves grow old and die eventually, so expect the plant to loose a few leaves.
    In cold weather you may see the leaves turn red, this is also normal and the leaves will revert to green in the spring.
    I've found the worst enemy for these plants is letting them dry out. If you keep it watered and fed (during the growing season) they're easy, so long as it doesn't get too cold.

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • FairygirlFairygirl Posts: 55,117
    The rose and the patio may well have affected the amount of water too.
    As @Pete.8 says - it's perfectly normal for all evergreens, regardless of what they are, to get damaged leaves and drop them, especially when stressed by weather conditions, or time of year.
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • stefano.francoybo6916ustefano.francoybo6916u Posts: 3
    Ok thank you guys!
    I had some red/yellow leaves in winter before, but was worried by the blotchy appearance of those brown ones... And also by how quickly it happened.

    Anyway, guess I'll leave it alone and hope for the best!

    Thank you both!
  • parrotfeather*parrotfeather* Posts: 188
    One other possibility is simply damage from the sun where you have watered and the water has remained on some of the leaves, although it does look as though there may be a more serious problem.  I would ensure that your plant has enough food, as previously suggested, and perhaps give it a seaweed feed to make sure it is not lacking in any trace elements, followed by a good deep mulch in the Spring so that it does not dry out.  
  • stefano.francoybo6916ustefano.francoybo6916u Posts: 3
    Thank you parrotfeather.
    Bit of a newbie here... Can I feed it now (October) to help it out through winter or should I wait till early spring? 

    I never fed it before, but gave it bonemeal late this summer... Maybe that was an error, but it took a long time to have these adverse effects if that's the cause.

    Appreciate all the help, thank you




  • Cambridgerose12Cambridgerose12 Posts: 1,134
    I doubt very much it's the bonemeal, don't worry. However, you're right that it needs feeding--you can tell by the yellow leaves. Now is not the best time; the plant isn't actively growing and it will all wash through the soil by springtime. So give it some balanced, timed-release fertiliser in about March. My thought about the brown patches, like parrotfeather, is that they might be sun on water. But they don't look like a disease.
  • parrotfeather*parrotfeather* Posts: 188
    I would leave the feeding for the Spring: a liquid seaweed feed for starters then slow release granules as suggested above.  Mulch with well-rotted manure or something like 6X when the soil is damp.
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