Moss Thrives in Dark Wet Areas Winter is When Organic Matter Thrives

Slippery Moss

Sanitise It

To Remove It


Before and After Holiday Inn Express


Render Cleaning at Holiday Inn Express

As trusted by:

What Time of Year Does Moss, Lichen and Mould Grow the Most?

Cladding Cleaning Hellmann Before

30th November 2021 General

Moss growth in Winter. What Time of Year Does Moss, Lichen and Mould Grow the Most?

One of the most common questions asked of exterior cleaning companies is about Moss growth in Winter.

Winter sees the most growth than any other season because it is generally darker at this time of year. Although growth continues at any time of year when it rains especially in shady dark or humid areas.

On dark stones, bricks, roof tiles and other hard surfaces these types of organic matter thrive in the darker days of Winter. Commonly known as Nostoc this type of Cyanobacteria is often mistakenly called gelatinous algae.

Mosses, lichens and moulds need moisture to thrive, and Winter provides excellent conditions for them here in the UK. This is due to plenty of rainy days and much shorter dark days when compared to Spring and Summer.

On homes the North facing elevations always have the highest level of organic matter growth and can be seen as darker green almost black shades.

Often one side of the roof will have heavier moss and lichen growth on it. When wet, moss becomes heavier and will often weigh more than a ton. Clumps often fall off into the gutters causing blockages.

When it is wet outside, driveways, paths and patios can become very slippery during the Autumn and Winter months.

Exterior cleaning companies often get asked is it better to leave outside cleaning work till March or April. The answer is no. You should be in the mindset of cleaning away all types of moulds, mosses and lichens as soon as you notice them. Better still an annual or bi-annual maintenance plan will keep all of your exterior surfaces free from slippery organic matter growth.

See other moss growth in winter explanations here 

Comments are closed.

Case Studies of Our Cleaning Work

See all case studies
  • Case Study

     Purple Rhino Author Logo

    Floor Cleaning – Gloucester

  • Case Study

     Purple Rhino Author Logo

    Roof Top Solar Panel cleaning

  • Case Study

     Purple Rhino Author Logo

    Powder Coated Surface Restoration

  • Render Cleaning Swindon

    Case Study

     Purple Rhino Author Logo

    Render Cleaning Services – Berkhamsted

  • Case Study

     Purple Rhino Author Logo

    K Rend – Render Cleaning Services

  • playground-cleaning-ashford

    Case Study

     Purple Rhino Author Logo

    Tower Tiny Tots Nursery

What our Clients Think

See all testimonials
  • Perefect results in an extremely safe manner performed by all of the Purple Rhino render cleaning team – Thank You

    Dobromir Yankov Project Manager
    Gem Estate Management Company, London

  • I’ve been impressed with the quality and cost and will be using you again.

    Marc Brownlee
    Cofeley, Birmigham

  • Good Job. Will Use Again.

    The cladding looked extremely bad and now looks as good as new,

    The Purple Rhino cladding cleaning team are extremely well organised and turned up on site with all necessary cladding cleaning equipment and detergents.

    Specialist cladding cleaning vans and and access machines were included.

    Brian Connolly Site Services Manager
    Nutricia Advanced Medical Nutrition , Liverpool

  • As always a phenomenal job – well done

    Green Eco Ltd

Purple Rhino Blog

See all Purple Rhino News

Our Recent Work

Call Us Email Us

Your buildings will
look brand new