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Maincrop Seed Potatoes

Seed potatoes are classified according to the length of time they take to mature, but this can be influenced by the weather. Maincrop potatoes are higher yielding than first earlies and second earlies and usually have larger tubers. Maincrop cultivars can either be used fresh from the ground or stored in Hessian Sacks for winter use.

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  1. Cara Seed Potatoes
    Available from late January 2026

    Cara Seed Potatoes

    As low as £6.99 £6.99
  2. Desiree Seed Potatoes
    Available from late January 2026

    Desiree Seed Potatoes

    As low as £6.99 £6.99
  3. Harmony Seed Potatoes
    Available from late January 2026

    Harmony Seed Potatoes

    As low as £8.99 £8.99
  4. King Edward Seed Potatoes
    Available from late January 2026

    King Edward Seed Potatoes

    As low as £6.99 £6.99
  5. Maris Piper Seed Potatoes
    Available from late January 2026

    Maris Piper Seed Potatoes

    As low as £6.99 £6.99
  6. Orla Seed Potatoes
    Available from late January 2026

    Orla Seed Potatoes

    As low as £8.99 £8.99
  7. Setanta Seed Potatoes
    Available from late January 2026

    Setanta Seed Potatoes

    As low as £8.99 £8.99
  8. Valor Seed Potatoes
    Available from late January 2026

    Valor Seed Potatoes

    As low as £8.99 £8.99
  9. Amour Mini Tubers 5 Tuber Pack (20-30mm) - Maincrop Seed Potatoes By Jamieson Brothers
    Available from late January 2026

    Amour Mini Tubers 5 Tuber Pack (20-30mm) - Maincrop Seed Potatoes By Jamieson Brothers

    £9.99 £9.99
  10. SpudMan Melody Seed Potatoes (Grow Baking Potatoes)
    Available from late January 2025

    SpudMan Melody Seed Potatoes (Grow Baking Potatoes)

    As low as £5.49 £5.49
  11. Melody Eating Potatoes - The Perfect Cooking Potatoes for Baking, Boiling, Chipping, Mashing & Roasting

    Melody Eating Potatoes - The Perfect Cooking Potatoes for Baking, Boiling, Chipping, Mashing & Roasting

    As low as £9.99 £9.99 Was: £12.99 £3.00 OFF
  12. SpudMan Melody Seed Potatoes
    Available from late January 2026

    SpudMan Melody Seed Potatoes

    As low as £6.49 £5.41
  13. Blue Belle Seed Potatoes
    Available from late January 2026

    Blue Belle Seed Potatoes

    As low as £9.99 £9.99
  14. Kondor Seed Potatoes 8 Tuber Pack

    Kondor Seed Potatoes 8 Tuber Pack

    £9.99 £9.99
  15. Belle De Fontenay Seed Potatoes - 8 Tuber

    Belle De Fontenay Seed Potatoes - 8 Tuber

    £9.99 £8.32
  16. Kerrs Pink Seed Potatoes

    Kerrs Pink Seed Potatoes

  17. Pentland Dell Seed Potatoes

    Pentland Dell Seed Potatoes

  18. Picasso Seed Potatoes

    Picasso Seed Potatoes

  19. Record Seed Potatoes

    Record Seed Potatoes

  20. Sarpo Mira Seed Potatoes

    Sarpo Mira Seed Potatoes

  21. Carolus Seed Potatoes

    Carolus Seed Potatoes

  22. Albert Bartlett Rooster Potatoes 2kg net

    Albert Bartlett Rooster Potatoes 2kg net

    £9.99 £9.99
  23. Java Seed Potatoes

    Java Seed Potatoes

  24. Swift Grow Your Own Seed Potatoes Bundle - Kit Including 3 x Seed Potatoes, Potato Planting Compost & Planter Bag by Jamieson Brothers

    Swift Grow Your Own Seed Potatoes Bundle - Kit Including 3 x Seed Potatoes, Potato Planting Compost & Planter Bag by Jamieson Brothers

    £14.99 £12.49
  25. Charlotte Grow Your Own Seed Potatoes Bundle - Kit Including 3 x Seed Potatoes, Potato Planting Compost & Planter Bag by Jamieson Brothers

    Charlotte Grow Your Own Seed Potatoes Bundle - Kit Including 3 x Seed Potatoes, Potato Planting Compost & Planter Bag by Jamieson Brothers

    £14.99 £14.99
  26. SpudMan Maris Bard 9 Seed Potatoes Ideal for Boiling Grows Approx. 90 New Baby Boiling Potatoes

    SpudMan Maris Bard 9 Seed Potatoes Ideal for Boiling Grows Approx. 90 New Baby Boiling Potatoes

    £6.49 £6.49
  27. SpudMan 3 Maris Peer Seed Potatoes, Grows Approx. 30 Salad Potatoes

    SpudMan 3 Maris Peer Seed Potatoes, Grows Approx. 30 Salad Potatoes

    £5.49 £5.49
  28. SpudMan Maris Peer 9 Seed Potatoes Ideal for Salad Grows Approx. 90 Salad Potatoes

    SpudMan Maris Peer 9 Seed Potatoes Ideal for Salad Grows Approx. 90 Salad Potatoes

    £6.49 £6.49
  29. SpudMan 3 Maris Piper Seed Potatoes, Grows Approx. 30 Chipping Potatoes

    SpudMan 3 Maris Piper Seed Potatoes, Grows Approx. 30 Chipping Potatoes

    £5.49 £5.49
  30. SpudMan 3 Maris Piper Seed Potatoes + 3 Polypots + Potato Compost

    SpudMan 3 Maris Piper Seed Potatoes + 3 Polypots + Potato Compost

    Special Price £14.99 £12.49 Was: £22.49 £7.50 OFF

When to plant main crop potatoes?

Main crop potatoes, known for their larger size and longer maturation time compared to early varieties, are typically planted from mid-March onwards. This timeline is a general guideline and may vary depending on local weather conditions. Unlike early varieties that can thrive in containers or bags, main crop potatoes require planting in the ground to ensure adequate space for their growth.

When are main crop potatoes ready to harvest?

Maincrop seed potatoes mature in 125-140 days, and if planted in late April, they can be harvested by mid-August, sometimes continuing through to October.

 

 

JBA Seed Potatoes

Est. in Scotland, 1895

Jamieson Brothers is Scotland's best known brand of horticultural Seed Potatoes.  We also provide the UK horticultural market with a wide range garden supplies e.g.

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