Home > Question >

What causes blossom end rot on tomato fruits?

Our Advice:

Blossom end rot is a disorder rather than a disease, which is caused by a shortage of calcium and irregular watering makes matters worse. Treat the plants with calcium nitrate from Chempak at 50g in 5 litres of water, watered into the compost. This will not cure the affected fruits, but will help to protect new fruits from being damaged.

Gardening Expert: Steve Bradley

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 March

---

How to Force Lily-of-the-Valley

How to prick off

How to Chit Potatoes

How to grow cucumbers

Latest Gardening Videos

---

How can I get rid of mushrooms growing in my lawn?

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

5 Essential Spring Bulb Tips in 1 minute

Weed Control Using Mulch

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

Why are my pansies and violas wilting?

All Videos

Explore Gardens from Around the World

Kenrokuen Garden
Kanazawa, Ishikawa, Japan

Singapore Botanic Gardens
Singapore

Royal Botanic Gardens, Kew
Richmond, United Kingdom

Gardens of the Generalife, Alhambra
Granada, Spain

Humble Administrator's Garden
Suzhou, China

Majorelle Garden
Marrakesh, Morocco