Cucurbita moschata 'Tromboncino'

RHS Plant Profile
squash 'Tromboncino'
Annual Biennial

A variety of butternut squash, mostly used as a summer squash like courgettes, by harvesting the fruits when young, pale green and around 30cm (1ft) long. These have a sweeter flavour and are less watery than courgettes. They are produced on trailing vines, but will also climb if a trellis is provided. Left to fully develop, the fruit become a stretched, narrowly cylindrical, sometimes twisting shape, around 1m (39in) in length, with a bulbous end furthest from the stalk. The hard skin is smooth and pale orange. Ripe fruits can be stored and used in the same way as other winter squash

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.5-1 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity
1 year
Max Spread
1.5-2.5 metres
Max Height
0.5-1 metres

Growing Conditions

Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H2

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Cucurbitaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Trailing, Climbing
Potentially harmful
Humans/Pets: If crop is bitter, don't eat or feed to pets. Wear gloves and other protective equipment when handling
Genus
A small genus of climbing or trailing, annual herbaceous fruits. Several edible species are cultivated for food and other uses. Native to Central and South America. Solitary, star-shaped flowers are usually golden-yellow. Leaves are palmately lobed, covered with tiny, prickly hairs
Name Status
Unresolved

How to Grow

Cultivation

Grow in fertile, moisture retentive but well drained, acidic to neutral soil in full sun. Sow indoors March to May in good quality seed compost. Sow the seeds on their side 1cm deep and maintain a constant temperature of 18-21C. Feed regularly with a high potassium fertiliser when the first fruits start to swell. See squash cultivation or pumpkin cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds

Pruning

No pruning required

Pests

Generally pest-free

Diseases

May be susceptible to grey moulds and powdery mildews