Seed Swaps

Winter squash 'Waltham butternut'        

Cucurbita moschata

  • 115 plantings
  • 26 available for swap
  • 8 wanted
  • 159 stashed

Waltham butternut is part of the Cucurbita genus and is a Winter squash variety. Its scientific name is Cucurbita moschata 'Waltham butternut'. Waltham butternut is a heirloom (open pollinated) variety. This variety typically blooms in the following colours:   Unmellow Yellow and   Canary yellow and   Golden yellow. When mature, blooms are roughly 10.0 cm (that's 3.9 inches in imperial) in diameter.The mature flowers take a Single form, with an approximate petal count of 6. This variety typically produces fruit in the following colours:   Tan and   Dark orange. The leaves of this particular variety normally show as   Lincoln green and   Dark olive green colour.

Heavy producer of 9-10" long, buff coloured fruit. Fruit is 3-6lbs each, has orange flesh and a distinct nutty flavour. Excellent flavour and a very good keeper, reportedly can be kept well for up to a year. One of the most popular types of baking squash.
83-100 days from transplant.

To keep fruit, store in a cool (but frost free) area like a cold cellar, with low humidity.

Can be roasted, mashed, pureed for soups and toasted. Added to beans is
delicious gives extra flavor and acts as a thickening agent.

Waltham butternut grows as an Annual and is a Vegetable. Being an Annual, it tends to grow best over the course of a single year. Waltham butternut is known for its Vine habit and growing to a height of approximately 2.00 metres (6.50 feet). Expect blooming to occur in mid summer.

United States is believed to be where Waltham butternut originates from.

This plant tends to need a moderate amount of maintenance, so ensuring that you are aware of the soil, sun, ph and water requirements for Waltham butternut Winter squash is quite important to ensure you have a happy and healthy plant.

This variety plant info is provided by the myfolia gardener's wiki. All details about Waltham butternut have been kindly provided by our members.

How to grow Waltham butternut

  • Full Sun

  • Medium

Once the vine has set four or five fruit, you can pinch off the end of the vine so that the plant will direct it’s energy to ripening the fruit rather than growing more foliage.

Plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Waltham butternut is thought of as tender, so it is imperative to wait until temperatures are mild before planting out of doors. Use USDA Hardiness Zone 3 - 12 as your guideline for the appropriate climate for this plant. Waltham butternut requires a soil ph of 6.1 - 7.5 meaning it does best in weakly acidic soil - weakly alkaline soil.

Growing Waltham butternut from seed

Sow in spring and summer. Can be sown direct from seed when night time temperatures are above 7C.

To sow indoors, keep seeds moist under light until germination.

To avoid transplant shock you can sow the seeds in peat or coir pots and plant the whole pot in the garden.

Ensure a distance of 3.90 feet (1.20 metres) between seeds when sowing - look to sow at a depth of approximately 1.95 inches (5.0 cm). Soil temperature should be kept higher than 15°C / 59°F to ensure good germination.

By our calculations, you should look at sowing Waltham butternut about 14 days before your last frost date.

Transplanting Waltham butternut

Harden off appropriately after the risk frost and freezing have past.

If you planted into peat or coir pots, remove any part of the pot that will be above the soil line. If coir or peat shows above the soil line, it may wick moisture from the soil and the plant will suffer from the dryness.

Ensure that temperatures are mild (minimum night temperatures should be around 12°C / 54°F) and all chance of frost has passed before planting out, as Waltham butternut is a tender plant.

By our calculations, you should look at planting out Waltham butternut about 14 days before your last frost date.

Harvesting Waltham butternut

~90-100 days to harvest. Harvest when stem is brown & skin is fully coloured. Pick with stem 6cm long, dry well before storing. 1 Fruit size is about 20 × 11 cm, and about 1-2 kg, creamy tan colour, excellent flavour.
Allow the skin to harden so you cannot dint it with your fingernail. Store in a cool dry place, such as an unheated bedroom. The fridge is too cold

Expect harvests to start to occur in late summer.

Winter squash Waltham butternut Etymology

An heirloom butternut squash. Bred by Bob Young of Waltham, Massachusetts.

Waltham butternut folklore & trivia

heirloom Originated in Stow, Massachusetts. Introduced commercially to the market in 1970, but was being grown on farms long before that. AAS winner in 1970.

Misspellings of Winter squash 'Waltham butternut'

Waltons butternut, Walton butternut, Waltom butternut, Waltam butternut

Other Names for Winter squash 'Waltham butternut'

Waltham’s butternut, Walthams butternut

Latest Winter squash 'Waltham butternut' Reviews

  • Total tally: 2.5 farm-baskets full over the course of roughly 3 months (Aug. 31-Nov.1).

    0 stars

    dirtfarmer about growing Butternut Squash
  • These wanted more sun and a longer season I could provide; I planted them too late.

    2 stars

    naturedance about growing Winter Squash 'Waltham Butternut'
  • I’ve only grown this variety of C. moschata, but among my other squashes it’s my favourite. It produces wonderful sweet fruit that keep very well (6 months, no cold rm) and are not too dry or stringy.

    5 stars

    HazelJ about growing Winter Squash 'Waltham Butternut'

See all Waltham butternut reviews and experiences »


1 :Seed packet from Green Harvest