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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. Blue Belle Seed Potatoes
    Available from Late Jan 2026

    Blue Belle Seed Potatoes

    As low as £9.99 £9.99
  2. Cara Seed Potatoes
    Available from late January 2026

    Cara Seed Potatoes

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

    Desiree Seed Potatoes

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

    Harmony Seed Potatoes

    As low as £8.99 £8.99
  5. Kerrs Pink Seed Potatoes
    Available from late January 2026

    Kerrs Pink Seed Potatoes

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

    King Edward Seed Potatoes

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

    Maris Piper Seed Potatoes

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

    Orla Seed Potatoes

    As low as £8.99 £8.99
  9. Pentland Dell Seed Potatoes
    Available from late January 2026

    Pentland Dell Seed Potatoes

    As low as £8.99 £8.99
  10. Picasso Seed Potatoes
    Available from late January 2026

    Picasso Seed Potatoes

    As low as £8.99 £8.99
  11. Record Seed Potatoes
    Available from late January 2026

    Record Seed Potatoes

    As low as £8.99 £8.99
  12. Sarpo Mira Seed Potatoes
    Available from late January 2026

    Sarpo Mira Seed Potatoes

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

    Setanta Seed Potatoes

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

    Valor Seed Potatoes

    As low as £8.99 £8.99
  15. Albert Bartlett Rooster Potatoes 2kg net
    Available from late January 2026

    Albert Bartlett Rooster Potatoes 2kg net

    £9.99 £9.99
  16. 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
  17. SpudMan Melody 2kg (Approx. 20-25) Seed Potatoes, Ideal for Baked Potatoes, Grows Approx. 200 Baking Potatoes
    Available from late January 2026

    SpudMan Melody 2kg (Approx. 20-25) Seed Potatoes, Ideal for Baked Potatoes, Grows Approx. 200 Baking Potatoes

    £8.99 £8.99
  18. SpudMan Melody 20kg (Approx. 200-250) Seed Potatoes, Ideal for Baked Potatoes
    Available from late January 2026

    SpudMan Melody 20kg (Approx. 200-250) Seed Potatoes, Ideal for Baked Potatoes

    £37.99 £37.99
  19. SpudMan Melody Seed Potatoes
    Available from late January 2026

    SpudMan Melody Seed Potatoes

    As low as £8.99 £7.49
  20. Belle De Fontenay Seed Potatoes - 8 Tuber
    Pre-Order Now Shipping Starts Late Jan 2026

    Belle De Fontenay Seed Potatoes - 8 Tuber

    £9.99 £8.32
  21. SpudMan Jazzy Seed Potatoes (Grow Salad Potatoes)
    Available from late January 2026

    SpudMan Jazzy Seed Potatoes (Grow Salad Potatoes)

    As low as £5.49 £5.49
  22. SpudMan Lady Christl Seed Potatoes (Grow Boiling Potatoes)
    Available from late January 2026

    SpudMan Lady Christl Seed Potatoes (Grow Boiling Potatoes)

    As low as £5.49 £5.49
  23. Kondor Seed Potatoes 8 Tuber Pack

    Kondor Seed Potatoes 8 Tuber Pack

    £9.99 £9.99
  24. Carolus Seed Potatoes

    Carolus Seed Potatoes

  25. Java Seed Potatoes

    Java Seed Potatoes

  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. SpudMan Maris Bard Seed Potatoes (Grow New Baby Boiling Potatoes)

    SpudMan Maris Bard Seed Potatoes (Grow New Baby Boiling Potatoes)

  34. SpudMan Maris Peer Seed Potatoes (Grow Salad Potatoes)

    SpudMan Maris Peer Seed Potatoes (Grow Salad Potatoes)

  35. SpudMan Maris Piper Seed Potatoes (Grow Chipping Potatoes)

    SpudMan Maris Piper Seed Potatoes (Grow Chipping Potatoes)

  36. 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

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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