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plant revival after water drought

Hello All,
I recently arrived back from a two week break which coincided with a rather harsh heatwave that had me watering my approximately 40 pots every day ranging from the huge to the tiny in size. Entrusting my mother in law to take up the baton I hesitantly headed off , hearing by phone during the break that all was well in the garden and she was watering away. I came back to what I'd describe as a gardening nightmare. Every single pot bone dry and the plants dead, dying or riddled with mildew mould black spot,  you name it !. THREE WEEKS LATER MANY OF THE PLANTS HAVE BEEN BINNED, more have been cut back to try to get fresh healthy growth, but my roses are looking terrible, poor diseased leaf growth and dry curled up blooms.  I'm loathe to get rid of the roses in particular because of the effort I've put into training them over the years but I don't know what to do besides feed and water them property. Any suggestions folks ? Thanks.
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  • ZeroZero1ZeroZero1 Posts: 577
    Change the mother in  law? (joke I am sure she is a treasure)

    I would be trying to save everything - try putting pots in a bucket overnight as the soil will be dry and incapable of taking new water. 
  • FireFire Posts: 19,096
    Where are you?
  • Lol, my first thought exactly !
    I've discarded most of the contents of the small pots because plants were long dead but all the plants in the bigger pots have responded to severe cutting back , at the expense of this year's flowers in a lot of cases. I hadn't a hint of disease on my roses before I left but now they're looking terrible. Watering alone isn't helping unfortunately ! 
  • FireFire Posts: 19,096
    Are the roses in pots? If so, perhaps think of cutting them right back (maybe to 1/3) to give them a bit of a break. No feeding with tom feed etc or it will stress them out more. Take off any flowers or buds or dying canes. 
  • Hello Fire,
    I'm living in Tipperary in southern Ireland but it's been more like the Bahamas last four or five weeks. Thankfully a few spits of rain lately but in the middle of a hosepipe ban to add insult to injury ! 
  • They are in large pots yes , I may well cut them back and forgoe any more flowers this summer and but what about the climbers, I'm loathe to cut back the framework a lot !
  • FireFire Posts: 19,096
    edited July 2018
    I guess it's always a risk asking ungardeners to water. Before I started I had no idea how much plants needed, esp pots. Maybe your MiL was giving each plant a sprinkle with a good heart. I still tend to under-water (after years of losing plants this way). I think to myself 'oh, they'll be fine'. And they're not. Saucers around the plant help show when the water is coming through and allow the plant to soak a bit. With evaporation rates at the moment, and a hose pipe ban where you are, soaking might be the way.
  • Saucers would be one way but some of the pots would need a saucer the size of a dustbin lid lol ! I've been toying with the idea of an automatic watering system for ages and though it may be expensive and a little tricky to set up initially it may be the way to go, especially if the alternative is filling thirty watering cans every day during a hosepipe ban! !!
  • Nanny BeachNanny Beach Posts: 8,719
    This months Gardeners World, mag, would you go on holiday or not, NO!!! By the time we have instructed kids on how much/how often to feed the dogs,then the garden and houseplants.  Last time we went away, (honeymoon) my oldest daughter was in charge, said she couldnt find the hose, (bloody great reel attached to outside tap!!) and tried to water my quarter acre with a watering can, she didnt do TOO badly.  We have a lot of pots, about 100, plus eighth of an acre, hanging baskets, veg plot, 20 orchids, etc etc, we live 10 minutes from the sea, passports expired, not interested in going away, (I married a bloke with agoraphobia, and I hate flying, claustrophobic!) but we never went in the summer anyway, either early or late, too hot otherwise, he was either ill before, or also while we were away, then theres airports,queues, packing, transfers, so much washing to come back to, nah.
  • It's a blooming nightmare going away and having to worry about the garden. I knew asking her to deadhead would be a total no no but even to somebody who has no interest in gardening , and her garden which I helped plant up , put up trellis, fixed pots to walks, weeded, etc was in pristine condition when I got back. This made me very angry 😠! She told my missus she was up watering everyday and yet didn't notice the transformation from lush garden to Sahara desert. Lots of lip biting ensued lol ! 
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