Q How do I know that potatoes have hollow heart?

A The potato tubers appear perfectly normal on the outside and are often quite large, but when cut open there are one or more cavities within. The cavities may vary in shape but are often star-shaped and show dark discolouration.

Caption: Hollow heart causes cavities within the potato tuber

Q What causes hollow heart in potatoes?

A Rapid potato tuber growth encourages hollow heart and the symptoms often occur when the weather has been dry and the crop is then irrigated. An over-wet soil or an over-dry soil may also encourage it, as may the excessive use of fertilisers.

Q What can I do if my potatoes have hollow heart?

A The tubers can still be eaten, although you’ll need to cut out the infected parts before you cook them.

Q How can I prevent hollow heart in potatoes?

A Attempt to keep the soil just moist at all times and avoid erratic watering or excessive fertiliser use.