Maris Piper Main Crop Seed Potatoes

Ideal for making chips and roasting in the oven, Maris Piper Main Crop Seed Potatoes are widely grown and well known. 2kg bag contains 16-28 tubers.


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Maris Piper Seed Potatoes are considered one of the best potatoes for making chips.

The most widely grown and best known variety of Main Crop potato, this ‘Heritage Potato’ variety is great for beginners to grow and is suitable for storage.

It is high yielding with many cream skinned oval tubers per plant that have a cream, floury textured flesh. They are an essential for any cook as a versatile all rounder with a good mild flavour. Beyond chips, they can also be used for salads, roasts and as jacket potatoes.

This variety was also awarded the Royal Horticultural Society’s Award of Garden Merit due to its excellent consistency and ease to grow.

How to plant

We recommend planting Main Crop potato tubers, such as Maris Piper, outside between March and April, 10cm deep and 20cm apart in a line. Leave at least 30cm between lines to allow growing space.

Prior to planting, encourage Seed Potatoes to sprout by placing them on a cool, bright windowsill for 4-6 weeks. This process is known as ‘chitting’ and will help prepare the potato tuber for going in the ground.

Once planted, ‘earth up’ the potatoes by drawing the soil up around new shoots to protect them from frost damage and prolong the growing time. Earthing up also protects developing potatoes from sunlight which causes them to turn green and poisonous. Keep potatoes well watered during warm weather.

Main Crop Seed Potatoes require a much longer growing time in the ground and would benefit from an added fertiliser during the Summer months.

How to harvest

When ready to harvest, cut back haulms (plant stalks) to ground level before gently lifting the plant up with a garden fork.

Carefully remove the potatoes from the plant and wash well before using in the kitchen.


  • Pack size: Taster bag of 10 tubers, 2kg bag (16-28 tubers)
  • Recipient of the Royal Horticultural Society’s Award of Garden Merit
  • When to plant: March, April
  • When to harvest: July, August, September, October
  • Planting depth: 10cm/4″
  • Bulb spacing: 20cm/8″
  • Soil type: Moist but well-drained
  • Soil pH: Acid, Alkaline, Neutral
  • Sunlight: Full sun, Partial shade
  • Hardiness: Tolerant of low temperatures but will not survive being frozen
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