Butternut, a small butternut squash with sweet vegetables

Cucurbita moschata butternut

Butternut beige squash
Butternut beige squashCredit: F. & K. Starr
CHair orange butternut squash
CHair orange butternut squashCredit: Julian Fong
Yellow flower green leaves butternut squash
Yellow flower green leaves butternut squashCredit: C. Sanvito
Pale green butternut squash
Pale green butternut squashCredit: Ancapron
Butternut squash green leaves
Butternut squash green leavesCredit: Dinesh Valke
Exposure
Sun
Hardiness (USDA)
9a (-6.7°C ≤ T° < -3.9°C)
Lifecycle
Perennial
Foliage
Evergreen
Family
Cucurbitaceae
Genus
Cucurbita
Species
Butternut squash Cucurbita moschata
Contents
Native to Central America, this variety of Butternut squash(Cucurbita moschata) is as rewarding to grow as it is to eat. Known as butternut or doubeurre, this cultivar is prized for its mild, sweet-tasting fruit.

How to recognize butternut?

Butternut is an annual vegetable. Although it doesn't grow taller than 45 cm, it can spread over several meters.

Indeed, the creeping stems can measure up to five meters. Green and hairy, they have aerial roots and tendrils. It can therefore be attached to a support and grown as a climber.

The 5-lobed leaves are green and thinly dissected. Some are marbled with white.

The yellow, funnel-shaped flowers can be male or female. The latter have a bulge at their base. This is the ovary that gives rise to the fruit.

Butternuts produce elongated, bottle- or club-shaped fruits. They weigh between 1.5 and 3 kg. Green, they turn beige or pale yellow when ripe, and are covered with a glaucous dust.

The rind encloses sweet, nutty orange flesh and flat, rounded seeds.

Which butternut varieties to grow?

Depending on the space you have available, the climate and your tastes, you can grow :

  • Waltham butternut: undoubtedly the best-known variety. Hardy, it produces fruit with sweet, fragrant flesh;
  • Early Butternut: an early variety, preferable if you live in a region with short summers or if you want to follow the harvest;
  • Havana F1: disease-resistant and productive;
  • Harrier F1: another early variety with fruit weighing less than 1 kg and a bushy habit, suitable for pot cultivation.

Is butternut toxic?

Butternut squash is grown for its edible fruit, which can be eaten raw or cooked. The flowers can be eaten as fritters, and the seeds roasted.

However, we recommend that you always taste a piece of raw butternut before cooking or serving your squash. Indeed, some fruits become unfit for consumption, particularly after wild hybridization. If your butternut is bitter, this means its cucurbitacin content is too high. You should not eat it.

Our care tips

Butternuts hybridize easily when planted in close proximity. Grow only one variety of Cucurbita moschata butternut per location, to be sure of harvesting the expected fruit.

WateringWatering

Butternuts like to keep their base moist, especially during the flowering and fruiting period.

Water your Butternut at the base, taking care not to wet the leaves. Preferably use rainwater at room temperature.

FertilizationFertilization

Butternuts are greedy plants. You need to fertilize them throughout their growth, adapting the type of fertilizer to their development:

  • After planting: apply a nitrogen-rich fertilizer (special vegetable fertilizer or nettle manure);
  • When flowers appear: fertilize with a potassium-rich fertilizer (tomato fertilizer or comfrey purin).

HarvestHarvest

You can harvest when :

  • Stems and leaves are yellow ;
  • Fruit has hard skin and makes a hollow sound when tapped.
  • The stalk is dry.
Using clean, sharp pruning shears, cut off the stalk, leaving 5 to 10 cm of stem. This length improves preservation.
Don't grasp the fruit by the stalk, as this could break and damage it. Carry with one or two hands.
Harvesting begins in summer and lasts until the first frosts.
Using clean, sharp pruning shears, cut off the stalk, leaving 5 to 10 cm of stem. This length improves preservation.
Don't grasp the fruit by the stalk, as this could break and damage it. Carry with one or two hands.

PlantingPlanting

Once the last spring frosts have passed, you can plant.
To enable your Butternut to thrive, leave 1.5 m between plants and 2 m between rows.

Butternuts plants like rich soil. Before planting, work the soil to a depth of at least 45 cm. Spade, remove weeds, roots and stones. Amend with compost or manure.

Dig a hole slightly larger than the root ball. Add a nitrogen-rich fertilizer (ground horn or dried blood, for example) to the bottom. Plant your Cucurbita moschata butternut without burying the leaves. If you want the stems to climb, place the first ones on the stake to guide them.

Tamp the soil gently and water generously. You can mulch the soil to conserve water, enrich the substrate and protect against slugs.

SowingSowing

Once the risk of frost has passed, you can sow your Cucurbita moschata butternut seeds.
Butternuts need space to grow. Separate seedlings by at least 1.5 m and rows by at least 2 m.

Loosen the soil to a depth of 20-30 cm. Incorporate well-decomposed manure or compost to enrich it. Remove weeds, stones and roots.

Butternuts can be sown in stacks. Dig holes 1.5 to 2 meters apart and place 2 to 3 seeds per hole. Bury them under 2 cm of soil.

Water lightly after planting, then regularly. Keep the soil moist, but not soggy. Emergence takes about ten days.

Frequently asked questions

What to plant butternut and butternut squash with?

The best companion plants for butternut squash and butternuts are corn and beans. On the other hand, avoid planting butternut squash close to potatoes or other cucurbits (cucumbers, zucchinis), to limit competition and the spread of disease.

What's the difference between butternut squash and butternut?

Butternut is a variety of butternut squash(Cucurbita moschata), a term that covers several types of squash with similar characteristics.

When to harvest butternut squash?

Harvesting generally takes place between September and October, before the first frosts. Here are the signs of readiness:

  • The skin is a uniform, hard color;
  • The stem is dry and cracked;
  • The squash sounds hollow when tapped.

Cut the squash with pruning shears, leaving a few centimetres of stalk to improve preservation.

Diseases / Threats

Information

Lifecycle
Perennial
Foliage
Evergreen
Exposure
Sun
Substrate
Humus soil
Planting method
Open ground
Categories
VegetableHerbaceous
Tags
BeginnerEdible flowerEdible vegetable
Origins
Central AmericaSouth America
Hardiness (USDA)
9a (-6.7°C ≤ T° < -3.9°C)
Leaf colors
Light greenWhite
Flower color
Yellow
Fruit colors
Pale yellowPale greenCream

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