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Annual Biennial

Cucurbita pepo
  • RHS Plants for pollinators

marrow

This is the original parent plant, from which many cultivars of courgette, summer and winter squash, pumpkins and gourds have been bred. The tender annual plants can be trailing or bushy. They have yellow flowers and both male and female flowers are born on the same plant, the female flowers have a small immature fruit behind the flower. Fruit can be green like courgettes, cream, yellow or orange like pumpkins

Other common names
autumn squash
common gourd
see morecourgette
field pumpkin
marrow
melon pumpkin
pomion
pumpkin
summer pumpkin
summer squash
vegetable spaghetti
winter squash
yellow-flowered gourd
zucchini
vegetable marrow
Buy this plant
Size
Ultimate height
1–1.5 metres
Time to ultimate height
1 year
Ultimate spread
1–1.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Neutral, Acid, Alkaline
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Yellow Green Orange Green Cream Yellow
Autumn Orange Green Cream Yellow
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H2
Botanical details
Family
Cucurbitaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy, Trailing
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

Correct

How to grow

Cultivation

Grow in rich, fertile, well drained soil in full sun. Start indoors from mid-late April, sowing in individual pots about 1.5cm deep. Harden off before June then transplant outdoors to final growing position. Keep well-watered throughout the growing season and feed every 10-14 days once fruits start to form. See courgette cultivation for further advice.

Propagation

Propagate by seed. See sowing vegetable seeds or sowing seeds indoors for further advice

Suggested planting locations and garden types
  • Patio and container plants
  • Wildlife gardens
  • Conservatory and greenhouse
Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to grey mould and powdery mildews

Get involved

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