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 April

---

How to take Dahlia cuttings

How to make a Herb Planter

How to keep a lawn drained

Hows to take Leaf Cuttings

Latest Gardening Videos

---

Five Essential Tips for Growing Lemons

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

How do I protect my tulips from squirrels and other pests?

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

Is it safe to compost rhubarb leaves?

Potting Cacti

All Videos

Explore Gardens from Around the World

Powerscourt Gardens
Enniskerry, Co. Wicklow, Ireland

The New York Botanical Garden
New York, United States

Ritsurin Garden
Takamatsu, Japan

Humble Administrator's Garden
Suzhou, China

Keukenhof
Lisse, Netherlands

Shinjuku Gyoen National Garden
Tokyo, Japan