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A picture of a Potato 'International Kidney'

Potato 'International Kidney'

Solanum tuberosum 'International Kidney'

Photo by Brighter-Blooms (All rights reserved)

Full Sun
Easy care
Moderate watering
Frost Hardy


RHS hardiness


Minimum temperature

Expected size








2 years to reach maturity


  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

Potato 'International Kidney' Overview

Solanum tuberosum 'International Kidney' is better known as Potato 'International Kidney'. This cultivar produces good yields of tasty tubers. The waxy tubers of this first early potato have a golden yellow skin with a creamy white flesh. They are only called Jersey Royals when they are grown on Jersey, sometimes known as Solanum tuberosum 'Jersey Royal'.

Common problems with Potato 'International Kidney'

How to harvest Potato 'International Kidney'

Normally ready 12- 16 weeks after planting, they can go floury if left in the ground too long. Best eaten as soon as harvested.

How to propagate Potato 'International Kidney'


In January or February chit seed potatoes in a cool light room (10C), When the ground is 50C (March/April) tubers can be planted in trenches 12.5cm deep and space tubers 60cm apart.

Special features of Potato 'International Kidney'

Crop rotation

For the best results grow in ground that has not been used for potatoes in the last two years.

Pot plant

Can be grown in large containers or potato bags.

Other uses of Potato 'International Kidney'

Waxy potatoes have less starch so do not break up when boiled making them also ideal for potato salad and layered potato dishes.


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