Loading... Please wait...
CLOSING DOWN SALE - UK Delivery £1.26

Squash Seeds - Waltham

Botanical - Cucurbita pepo


Seed Count:
20 Seeds
Usually despatched within 24 hours
99p, FREE over £15.99
Price £2.29 £1.26 (You save £1.03)

Our Price Promise

If you find the exact same product cheaper elsewhere within 28 days of purchase we will refund you 2 times the difference! Click here for more details and terms & conditions.

12 Months Guarantee

If you are not satisfied with your purchase, let us know within 12 months of the purchase date for a full refund, replacement or a store credit. Click here for more details and terms & conditions.

20 Seeds.

Other Names - Butternut Squash, Winter Squash…

This squash variety is one of the best butternut squash varieties available. Waltham Butternut squash produces its fruits early which is important here in the UK as our growing season is fairly short. The neck is elongated and the seed cavity is very small therefore producing more orange juicy flesh. The flesh of the squash has a good flavour and the variety can be stored for several months.

  • One of the most reliable early varieties of butternut squash available.
  • Will store over the winter months.
  • Each plant can produce 4 - 5 flavoursome squashes.

Suitable For - Vegetable plot, raised beds, container garden

Sowing Months - Late April - early June

Harvest - September - November

Gardening is about finding the right balance! Try growing Companion Plants close by to help deter pests.

  • Amaranth is great for attracting the ground beetle. This predatory beetle eats slugs, snails, slug and snail eggs, caterpillars and weed seed.
  • French marigolds will attract pollinators to the area which in turn will pollinate the squash flowers.
  • Try growing lavender in containers. When squash plants start to flower position a few lavender plants close by to attract pollinating insects. Move the perennial lavender to other areas of the garden as and when needed.
  • One of the best plants for attracting pollinating insects into the area is the Phacelia. It also attracts aphid eating insects such as ladybirds and lacewings. At the end of the season it can be dug into the soil as a green manure.

Soil Preperation

Add some well rotted manure or compost to the growing area a few months before planting. 1 - 2 weeks before planting add some general purpose organic fertilizer and remove any weeds.

General InformationSowing & Planting Information
Habit Annual Module Grown & Transplants
Type N/A Distance between plants 90 cm
Position Full sun Distance between rows 150 cm
Average height N/A Direct Sowing
Average spread 250 cm Sowing distance between plants N/A
Hardiness Half hardy Distance between rows N/A
Overwintering Stored Sowing depth 1.5 - 2 cm
Soil Ph 6.5 - 7.0 Germination temperature 20 to 25℃
    Days to germination 7 - 14 days

Sowing Guide

Early Sowing/Module Sowing

Sow 1 seed on its edge per 5 - 7 cm pot. Ensure adequate heat is available for fast germination. Once germination starts reduce the heat and move the seedlings to an area with good daylight exposure, a warm windowsill or warm greenhouse. 2 - 3 weeks after germination plant out.
The plants will need hardening off over 7 - 10 days before planting out to reduce shock. Discard any weak or unhealthy looking plants. Plant out at the distance suggested above.
If the soil is poor with very little organic matter it will be beneficial at this stage to dig a trench about 30 cm wide and 30 cm deep for each individual plant. Fill each trench with a 50 / 50 mix of either compost or well rotted manure and soil. Plant out carefully as the stems of the plants are very fragile and easy to snap or damage. Firm the soil around each plant and water well. Cover the newly planted squash plants with horticultural fleece.

Direct Sowing

Squash plants are vulnerable to the cold, it is best to start the seeds indoors then a few weeks later plant out.

Growing On

Weed often especially in the early stages. The plants are fast growing, with large leaves, long stems and require plenty of room. Water well in dry weather, water around the base of the plants rather that over the leaves.
They will benefit from a mulch of compost to help retain the moisture in the surrounding soil.
Keep an eye on trailing varieties so that they do not end up smothering nearby beds. Rather than cutting the rambling growth try pointing the growing point in the direction you prefer them to go.
Winter squash plants generally grow much bigger than summer squash.


Winter squashes are left on the plants to mature and are harvested in October or just before the first frosts arrive. During this time the fruits will have developed a hard skin making them suitable for storing over the winter months.
For storage purposes it is vital that the area where the fruit stem and fruit meets is not damaged in anyway when harvesting otherwise mould can set in and spoil the squash. To reduce the chances of damaging this area when harvesting rather than cutting the hard fruit stem, cut the plant stem on either side instead so you are left with a squash with a stem resembling the letter 'T'.
Store the winter squashes as dry as possible and at room temperature. If stored correctly the squashes will keep until spring. Any unripe squashes with soft skins by October will not store well and will need to be treated like summer squashes. Eat unripe squashes soon after harvesting.


If the summer is wet and the soil is constantly saturated raise the squashes off the ground by placing them on pieces of wood. This will help to prevent the squashes rotting in the damp conditions.

Delivery Information

All products on this website are for delivery to the UK only.

(Including Northern Ireland, the Highlands & Islands, Scilly Isles, Channel Isles and the Isle of Man). Delivery charges to these areas are the same as UK mainland stated below (with no additional surcharge). Delivery however may take longer than the times stated due to weather, distance etc.)

FREE DELIVERY on all orders over £9.98

When applicable, free 2nd class delivery will be automatically calculated at checkout.

STANDARD DELIVERY - Royal Mail 2nd Class (3 - 5 working days) - £0.95

For orders under £9.98, the "Standard Delivery" charge will be added automatically at checkout.

FAST DELIVERY - Royal Mail 1st Class (1 - 2 working days) - £1.52

If preferred please select this delivery option at checkout.

For further information please visit our Delivery, Postage & Packaging page.

Returns & Refunds

We like to be transparent with our customers, here are your rights as a consumer -

The 14 day cooling off period.

Under the 'Consumer Contract Regulation Act' you the consumer have the right to cancel a long distance order (such as a website order) at any time from the moment the order is placed up until 14 calendar days from the day after the goods are received.

So if for whatever reason you change your mind within this time and wish to return the goods, simply send us a 'Cancelation Form' (full details can be found on our Your Right to Cancel page). On receiving the undamaged goods back from you we will fully reimburse you with all payments received including the cost of standard delivery. You will however need to bear the cost of returning the goods back to us.

For full details please visit our Your Right to Cancel page.

Damaged, Incorrect or Missing Goods.

We want you to be 100% delighted with your purchase.

If however you receive goods that have been damaged, incorrect or missing, let us know within 72 hours of receiving the goods and we will either fully refund you (including postage costs), promptly send you a replacement or credit your Groseeds account, depending on your preference.

For full details, including how to contact us, please visit our Returns & Refunds page.

Faulty Goods.

We guarantee to supply you with the finest quality seeds in prime condition.

All products sold by Groseeds come with a 365 Days 100% Satisfaction Guarantee (from the date of purchase). For further information please visit our 12 Month Guarantee page.

If however within the 12 months you find the goods to be faulty please contact us ASAP so that we can resolve the issue promptly. Full instructions, including how to contact us can be found on our Returns & Refunds page.

We want you to be 100% satisfied with your purchase. Any issues will be dealt with promptly, courteously and efficiently.