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Cucurbita pepo 'Jack o' Lantern'

pumpkin 'Jack o'Lantern'

A well-known, ornamental pumpkin cultivar, producing orange-skinned, spherical pumpkins that are typically grown for halloween decorations. The pumpkins are late ripening and while the flesh is edible and can be used for soups, the flavour is mediocre. They usually weigh around 3 kg (7 lbs).

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Ultimate height

0.5–1 metres

Time to ultimate height

1 year

Ultimate spread

1–1.5 metres

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Cucurbitaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: 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: Accepted

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 pumpkin 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

Pruning

No pruning required

Pests

Generally pest-free

Diseases

May be susceptible to grey moulds and powdery mildews

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