We hope you have enjoyed the SRGC Forum. You can make a Paypal donation to the SRGC by clicking the above button


Author Topic: Saxifrage looking sick - help.  (Read 600 times)

Jupiter

  • Hero Member
  • *****
  • Posts: 1361
  • Country: au
  • Summers too hot, too dry and too long.
    • https://www.flickr.com/photos/jstonor/
Saxifrage looking sick - help.
« on: January 08, 2019, 09:07:39 PM »

My only plant of Sax. marginata coryophylla lutea is looking worse and worse. I'm not sure what the issue is. Waterlogging perhaps? I'm hesitant to lift it but maybe that's the best course of action? If it dies I may not be able to replace it. Any suggestions would be greatly appreciated.
 
Jamus Stonor, in the hills behind Adelaide, South Australia.

https://www.flickr.com/photos/jstonor/

David Sellars

  • Full Member
  • ***
  • Posts: 139
  • Country: ca
    • Mountain Flora
Re: Saxifrage looking sick - help.
« Reply #1 on: January 09, 2019, 01:00:07 AM »
My Saxes sometimes start to look like this after excessive heat and associated dryness. Unfortunately the symptoms don't show up immediately so by the time you notice problems it can be too late!
David Sellars
On the wet Pacific Coast of British Columbia, Canada

Feature your favourite hikes at:
www.mountainflora.ca
Videos:
https://www.youtube.com/user/MountainFlora/videos

fermi de Sousa

  • Far flung friendly fyzzio
  • Hero Member
  • *****
  • Posts: 6217
  • Country: au
Re: Saxifrage looking sick - help.
« Reply #2 on: January 09, 2019, 02:44:28 AM »
Hi Jamus,
It might pay to take cuttings
cheers
fermi
Mr Fermi de Sousa, Redesdale,
Victoria, Australia

Jupiter

  • Hero Member
  • *****
  • Posts: 1361
  • Country: au
  • Summers too hot, too dry and too long.
    • https://www.flickr.com/photos/jstonor/
Re: Saxifrage looking sick - help.
« Reply #3 on: January 09, 2019, 03:15:37 AM »
Yep, I feared that heat exposure might be the problem. Fermi you're right, I need to take cuttings. I hope it's not too late. Does Vivienne Condon have all of these growing? I hope someone will look after Otto's collection better than I can.. Adelaide is far from ideal!
Jamus Stonor, in the hills behind Adelaide, South Australia.

https://www.flickr.com/photos/jstonor/

Mark Griffiths

  • Hero Member
  • *****
  • Posts: 959
  • Country: england
    • Inspiring Plants
Re: Saxifrage looking sick - help.
« Reply #4 on: January 31, 2019, 02:46:58 PM »
I generally get two problems - the roots rot in winter (or it might be vine weevil activity in autumn) and burning/ dryness when it gets hot.

If it's burning/ dryness I find it affects the middle of the plant (same thing for cushion mossy saxs).

I generally find cutting will take easily if kept damp and shaded.

I suspect as it's summer there it will be the heat and it will recover and grow over - but it's worth having some cutting raised plants as insurance or to try elsewhere.

Jupiter

  • Hero Member
  • *****
  • Posts: 1361
  • Country: au
  • Summers too hot, too dry and too long.
    • https://www.flickr.com/photos/jstonor/
Re: Saxifrage looking sick - help.
« Reply #5 on: January 31, 2019, 10:04:08 PM »
Thanks Mark, that's good advice. I'm learning!
Jamus Stonor, in the hills behind Adelaide, South Australia.

https://www.flickr.com/photos/jstonor/

Mark Griffiths

  • Hero Member
  • *****
  • Posts: 959
  • Country: england
    • Inspiring Plants
Re: Saxifrage looking sick - help.
« Reply #6 on: February 01, 2019, 01:39:14 PM »
I'm still learning after 40 years - and unlearning some of the things I learnt.

 

In Association with Amazon.co.uk


Scottish Rock Garden Club is a Charity registered with Scottish Charity Regulator (OSCR): SC000942