Thompson & Morgan Mashed Potato (Winter) Squash Seeds

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  • Easy to grow with the minimum of kit
  • Great mashed potato replacement
  • White skinned, fleshy squash
  • Likes sunny positions
  • Great flavour 
  • Perfect for patio or kitchen garden

What Are Thompson & Morgan Mashed Potato Winter Squash Seeds?

Thompson & Morgan Mashed Potato Winter Squash Seeds winter Acorn Squash with a stunning secret. Underneath the dazzling white skins lies a pale-coloured flesh that looks just like a mashed potato when baked and fluffed – but with just a fraction of the calories! Squash' Mashed Potatoes' are productive and vigorous plants, delivering four fruits per plant, each weighing up to 700g. In addition, the squash are high in fibre, and a great source of iron, making them a healthier alternative to traditional spuds. Plants will reach heights of 60 cm (24") with a spread of 100 cm (39").


Garden tip: Choose a planting spot that receives at least 6 hours of direct sun daily.

HOW DO I SOW Thompson & Morgan Mashed Potato Winter Squash Seeds?

Sow indoors from April to May for transplanting later.

  • Sow seeds on their sides in small 9 cm (0.33l) plant pots of seed compost at about 2 cm (¾”) deep.
  • Place in a propagator at 20-25C (68-77F) until germination, which takes 5–7 days.
  • Once germinated, grow squash in more excellent conditions until any risk of frost has passed and your squash plants are mature enough to transplant outdoors.
  • Gradually acclimatise plants to outdoor conditions for 7 – 10 days before planting in warm, well-drained, rich soil in full sun.
  • Alternatively, direct sow squash seeds outdoors from May at a depth of 2 cm (¾”) and 90 cm (36”) apart. Sow two seeds per hole, and thin out the weakest seedling per station after germination. Ideally, you should grow under cloches until squash plants are established.
  • Harvest squash in late summer and autumn, before the first frosts, when the skin has hardened, and the fruits begin to crack near the stem—harvest squash by cutting each fruit, leaving several inches of the stem attached.


Garden Tip: Water your squash regularly – do not allow the soil to dry out, as this will damage their development. Hoe between plants regularly to prevent weeds.


Garden Tip: Squash loves high potash fertiliser every two weeks during the growing season.

More Information
Brand Thompson & Morgan
Size Fruit & Vegetable Seeds
Type Fruit & Vegetable Seeds
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