About the Landscape Juice Network

Founded in 2008. The Landscape Juice Network (LJN) is the largest and fastest growing professional landscaping and horticultural association in the United Kingdom.

LJN's professional business forum is unrivalled and open to anyone within within the UK landscape industry

LJN's Business Objectives Group (BOG) is for any Pro serious about building their business.

For the researching visitor there's a wealth of landscaping ideas, garden design ideas, lawn advice tips and advice about garden maintenance.

Mock Orange (or Mexican Orange!) disease?

Hello folks. I'm submitting a couple of photographs of a Mock Orange shrub, that I've had for 32-years that, a couple of years' ago, started showing some dead leaves. That was first noticed in the winter of 2010. As of November 2012 I have what you see in the photographs.

One is the top view from our house, showing a swath of death across the centre of the bush. Which seems to be slowly - in the order of months - spreading side to side.

The other photograph shows good, and still healthy leaves next to the dead. The healthy areas had plenty of blossom this year. Any suggestions are welcome, but has the plant simply come to the end of it's life?

Tony.

You need to be a member of Landscape Juice Network to add comments!

Join Landscape Juice Network

Votes: 0
Email me when people reply –

Replies

  • PRO

    Probably going to show myself up here...but that doesn't look a Philadelphis, it looks more like a "Mexican Orange", or a Choisya Ternata as I would know it...?

    (image from a nursery we use..)

    If so, we see these frequently at business parks and it seems they do just come to an end, we've hard pruned them at right time of the year and have reasonable success at them rejuvenating....

    Nice white flowers and a love it or hate it scent...

    If I'm wrong...shoot me down gently ;-)

  • Hi Gary, thanks for the info. You'll more likely be right than me on the genus. But the leaves and flowers look very similar, and as you notice, it's a long time since I've had this.

    It's just come to it's time you think? I have considered hard pruning to see what would happen. As it is I think in the long term it's all going to go the way of the middle if I don't do anything.

    Tony

  • PRO
    They do spilt their main branches down to the soil and I think it's the weight of the plant or possibly from snow - branches almost peels down. I think then rot sets in and sections go dead.

    My take would be to consider hard pruning first if you have already decided you would replace it...as you have nothing to loose.

    We quite regularly take these down hard as all new growth is on the outside face. Failing that we just budget to replace. I'd give shrubs like that a life span of 5 to 10 years on a business park before they are too big or damaged.
  • Hi, I agree with Gary re: plant identification. You can hard prune them but I've only done that successfully in summer as new shoots are very susceptible to frost damage. Not sure what would happen if you tackled it now. Agree with Gary's assessment of reason for damage also, they are very reliable plants but don't like very cold conditions as we had in winter 2010.

  • Thanks to Jenny and Gary for the input. I'll leave it until the spring and give it a hard prune and see what happens. If it looks bad I'll take it out and put in something new.

  • PRO

    Exactly spot on advice - you and Gary beat men to it!
    Jenny Owen said:

    Hi, I agree with Gary re: plant identification. You can hard prune them but I've only done that successfully in summer as new shoots are very susceptible to frost damage. Not sure what would happen if you tackled it now. Agree with Gary's assessment of reason for damage also, they are very reliable plants but don't like very cold conditions as we had in winter 2010.

  • PRO

    Its is choisya and we have also had this problem especially when the snow weight helped to split them, more of a problem on bushes that are not trimmed annually.We have cut them down hard and they either grew away very fast or we ended up digging them out! We tend to prune earl on otherwise the new growth is damaged.

  • Yes, all these replies seem to say that it got hit by the 2010 winter. My feeling is, looking at the base of the plant, that the splitting and damage probably means it will have to come out. It's a shame because it was planted the week when we moved-in here, so it's a bit like the welcoming 'friend' when we come home.

  • Why not take cuttings, or you might find rooted bits at the bottom. That way you have several new plants for no money, and they are all part of the old friend!

  • I wouldn't give up on it yet Tony. We managed to rescue one that looked like it had no life left in it at all.

    You could try Paul's idea of cuttings also. Best time to take cuttings from Choisya is from July to October but it doesn't hurt to try and take some now from some of this years growth. Nothing ventured, nothing gained.

    As for cutting right back, my pruning book recommends June but we did cut one right back in April and by the summer of that year it had some decent growth and by the following year it looked pretty good. I'd certainly give it a chance as it's obviously a special plant to you and fingers crossed for not too bad a winter for it.

This reply was deleted.

Trade green waste centres

<!-- Google tag (gtag.js) --> <script async src="https://www.googletagmanager.com/gtag/js?id=G-WQ68WVXQ8K"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-WQ68WVXQ8K'); </script>

LJN Sponsor

Advertising