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Newbie Gardener

Hi. I'm hoping someone can help (and that I've attached the photo correctly).  I'm new to gardening, not great with plants or growing fruit and veg, but definitely a trying my best to improve. 
We've always had an issue with an odd green mould looking type thing spreading in our garden. We've since had a new step built (last summer) that looked lovely,  but disappointingly the green reappeared.  It's on my steps, just starting to creep up the brickwork of my house and on my rockery stones and concrete garden ornaments. We've tried to stay on top of it by using a pressure washer,  but it just keeps coming back.  Can anyone offer advice on what this is and how we can rid of it permanently. I feel like I'm wasting water with the constant cleaning of it,  but can't stand seeing it look so bad and spreading. 
Any help would be gratefully received. 

Posts

  • AthelasAthelas Posts: 946
    edited February 2022
    Welcome to the forum! 

    Have you tried Patio Magic? It takes some time to work, the effect gets better a few days after it’s applied

    You may have to use it every year or so to keep on top of things, it’s not a permanent solution 
    Cambridgeshire, UK
  • Athelas said:
    Welcome to the forum! 

    Have you tried Patio Magic? It takes some time to work, the effect gets better a few days after it’s applied

    You may have to use it every year or so to keep on top of things, it’s not a permanent solution 
    Thank you for your prompt reply. I've not heard of that, but willing to try anything so will take a look. I don't mind if I  have to treat it annually, but at the moment it's having to be doing every couple of months as it comes back so quick.
    Thank you again.
  • AthelasAthelas Posts: 946
    No problem. Others in the forum may have better/more long term solutions, but I’ve been happy with the results from PM (once a year).

    You can also check out the recent discussion here: https://forum.gardenersworld.com/discussion/1061982/cleaning-patio-with-diluted-bleach-would-it-hurt-the-plants#latest
    Cambridgeshire, UK
  • FairygirlFairygirl Posts: 55,117
    It's perfectly normal for mosses and algae to be present in gardens. Shade and damp are what they like best. 
    The only time it needs a bit of control is when it's on a patio and/or paths etc, if you're using them regularly, because some of them can be slippery.
    It's just part of having a garden.  :)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • LynLyn Posts: 23,190
    I think it look nice, I couldn’t wait for our patio to go off that new, sparkling look.
    Patio Magic is not the best thing to use, depends how you feel about the environment,  some people don’t mind, it’s up to you.  We clean ours with just plain water. 
    Quote from net.
    Patio Magic 2.5 litre is ideal for use on all outdoor hard surfaces with no scrubbing or power washing required. It's easy to use, and you'll see visible results in just 2-4 days. This antibacterial solution contains no bleach or acid and is long-lasting. Warning: Always read the label. Keep children and pets away until the treated area is dry. Contains 7.5% w/w Benzalkonium chloride. Harmful to aquatic  organisms. Irritant. Dangerous for the environment. HSE N°: 8579, PCS N° 95346.” 
    Gardening on the wild, windy west side of Dartmoor. 

  • Fairygirl said:
    It's perfectly normal for mosses and algae to be present in gardens. Shade and damp are what they like best. 
    The only time it needs a bit of control is when it's on a patio and/or paths etc, if you're using them regularly, because some of them can be slippery.
    It's just part of having a garden.  :)
    Thank you for your reply. I think it's because I see other people's garden looking so amazing and the green in mine just makes it looks horrible and uninviting. It seems to spread everywhere and like you say, it's slippery. 
  • Lyn said:
    I think it look nice, I couldn’t wait for our patio to go off that new, sparkling look.
    Patio Magic is not the best thing to use, depends how you feel about the environment,  some people don’t mind, it’s up to you.  We clean ours with just plain water. 
    Quote from net.
    ”Patio Magic 2.5 litre is ideal for use on all outdoor hard surfaces with no scrubbing or power washing required. It's easy to use, and you'll see visible results in just 2-4 days. This antibacterial solution contains no bleach or acid and is long-lasting. Warning: Always read the label. Keep children and pets away until the treated area is dry. Contains 7.5% w/w Benzalkonium chloride. Harmful to aquatic  organisms. Irritant. Dangerous for the environment. HSE N°: 8579, PCS N° 95346.” 
    Thank you for your reply, I'm already feeling so welcome on this site, with so many amazing and helpful members.
    The main problem is that the step and paving gets very slippery and I myself and one of my eldery dogs have slipped and fallen. Thank you for the quote, that's really helpful as I have 3 dogs. It wouldn't be too bad if I only had to clean the garden occasionally, but it just seems to spread so fast. 
  • FairygirlFairygirl Posts: 55,117
    Yes @Lyn - They always look a bit too stark when they're very clean!
    We never used anything but water and a brush on patios in previous gardens. An occasional drop of washing up liquid for any stubborn bits. 
    You'd hate the condition of the paving on my paths just now @jossibakes ;)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
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