Home > Question >

What is the white layer on the compost around my pot plants?

Our Advice:

A mould that feeds on fertiliser residue in the compost. It is worse if you water with hard tap water and liquid feed your plants. Replace the top layer of compost with new, stand the pots in saucers and water from below to keep the surface of the compost drier.

Here are some related questions:

Not what you are looking for?

If you can't find what you are looking for on the website then you can ask one of our experts. To get in touch with us Click Here

We will try to get back to you with an answer as soon as we can.

Here is some more information for you:

Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.

Ask another gardening question:

Learn More About Pests and Diseases

Gardening Projects for October

---

How to Store Apples

How to: New orchids from old

How to care for your Greenhouse

How to protect bulbs in the garden

Latest Gardening Videos

---

Digging Up Sweet Potatoes

How to Grow Orchids

Moving House and Taking the Garden with You | Garden Ideas | Val Bradley

How can I get rid of a red ant nest in my lawn?

Growing Nasturtiums

Why are my pansies and violas wilting?

All Videos

Explore Gardens from Around the World

Monet's Garden, Giverny
Giverny, France

RHS Garden, Wisley
Woking, United Kingdom

Royal Botanic Gardens, Kew
Richmond, United Kingdom

Singapore Botanic Gardens
Singapore

Pukekura Park
New Plymouth, New Zealand

Villa d'Este Gardens
Tivoli, Italy