Thompson & Morgan

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Squash 'Harrier' F1 Hybrid (Winter)

Cucurbita moschata, Butternut Squash

Half-hardy Annual

 Customer Rating
Bushy. An outstanding early British-bred Butternut squash. In T&M's trials Squash Harrier F1 was the quickest to ripen, and was ready to harvest approximately 95 days from sowing. The bushy plants of Squash Harrier have an open habit allowing the sun to ripen fruits naturally on the plant giving added sweetness. Pear shaped fruits weigh 800g (1¾lb). 4 to 5 fruits per plant, with excellent long storage at 10C.

Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

Ideal For:
kitchen garden
Flowering Period:
June, July, August
Sowing Months:
May, June
full sun
    • 1 packet (10 squash seeds)

    • Despatch: by Monday
    • £2.99
Sow May to June. Sow seeds 2cm (¾in) deep in 7.5cm (3in) pots of good seed compost at 21-25C (70-77F). Place in a propagator or seal container in a polythene bag until after germination which takes 7-10 days.Seeds can also be sown direct outdoors once the soil has warmed. Do not sow in cold soils. Sow 2 seeds every 90cm (36in) and thin out to the best seedling. Ideally grow under cloches until the plant is established.

Gradually acclimatise to outdoor conditions for a few days before planting out after all risk of frost has passed, 90cm (36in) apart each way.

Keep well watered throughout the season. Feed and mulch regularly.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes etc are delivered at the appropriate time for planting and will be stated on the product page or in your order acknowledgement page and email.

Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.

Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

  1. brittle stems

    By Kath Smycki 30-05-2015

    I sowed all the seeds in pots (x2) in the glasshouse. All germinated. While moving some pots, two of the young plants snapped and I put the broken top back in the pot like a cutting. I gave away all but what I needed. While hardening the young plants off, two more stems snapped. I planted out the remaining to find in the morning the wind snapped another squash plant off just above ground level. I've never had such a fragile stem on any plant. The other plot holders I gave my surplus plants to also had snapped transplants. These 'Winter Harrier' stems are too brittle. Please reply but do not tell me no one else has told T&M of this. You need to know and I am informing you.


    Thank you for your review. I am very sorry to hear of your disappointment with the Squash 'Harrier'. If you could please contact our Customer Care Team on, one of our agents will be happy to investigate this matter further.

  2. Rubbish!

    By Morna Wheatley 18-02-2015

    I planted these indoors at the same time and conditions as some other butternut seed. The other all germinated, grew and harvested abundantly, but the Harrier were hopeless. There were only a few seeds in the packet, only 2 germinated and one of those then died before it even got into the ground. The one plant never grew properly despite enormous amounts of love and care, and produced only one tiny pathetic specimen. This year I'll stick to the ones that work!


    Thank you for your review. I am very sorry to hear of your disappointment with your recent purchase. If you would like to contact our Customer care team on, one of our agents will be happy to investigate this matter further.

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