About

Cucurbita moschata 'Black Futsu' is a traditional Japanese butternut squash known for its compact growth, reaching heights of up to 200 cm. The fruit features a deeply ribbed exterior, with skin that ranges from dark green to nearly black, transitioning to orange as it matures. Its flesh is golden orange, offering a rich, nutty flavor that intensifies when roasted. Plant seeds in early spring to enjoy a harvest from summer into autumn. This variety has good storage capabilities, though the skin may develop a chestnut brown hue post-harvest.

About the genus

This genus consists of small, annual herbaceous plants that either climb or trail. Several species within this group are cultivated for their edible fruits and other applications. They originate from Central and South America. The flowers are typically solitary and star-shaped, exhibiting a golden-yellow hue. The leaves are characterized by their palmately lobed structure and are adorned with fine, prickly hairs.

Growing conditions

Sunlight
Full sun
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained, Well-drained
Aspect
South-facing, West-facing
Exposure
Sheltered
UK hardiness
H2

Plant details

Plant type
Annual Biennial, Fruit Edible
Habit
Bushy, Trailing
Foliage
Deciduous
Height
1.5-2.5 metres
Spread
1-1.5 metres
Time to full height
1 year
Suggested uses
City and courtyard gardens, Cottage and informal garden, Patio and container plants
Toxicity
Humans/Pets: If crop is bitter, don't eat or feed to pets. Wear gloves and other protective equipment when handling

Care notes

Cultivation
Grow in rich, fertile, well drained soil in full sun. Start indoors from mid-late April, sowing in individual pots with seeds on their side about 1.5cm deep. Harden off before June then transplant outdoors to final growing position. Requires plenty of room to grow. See pumpkin cultivation or squah cultivation for further advice
Pruning
No pruning required
Propagation
Propagate by seed. See sowing vegetable seeds or sowing seeds indoors for further advice
Pest resistance
May be susceptible to slugs and snails
Disease resistance
May be susceptible to grey moulds and powdery mildews