SproutSmart
SproutSmart™ Intelligent Garden Sowing

Jack-O'-Lantern

Family: Cucurbitaceae Vegetable

Planting Schedule

Provide your location or planting zone to unlock dates and add Jack-O'-Lantern to a garden.

Sink your senses into Jack-O’-Lantern’s luminous, lantern-bright fruit—an unmistakable warm orange glow that seems to radiate from the garden.

The flesh is thick and velvety, with a pleasantly sweet, mellow flavor and a sturdy, roast-ready texture that holds its shape beautifully. Grow it for standout centerpiece pumpkins, plus dependable performance for hearty autumn favorites like roasting, purees, and spiced preserves.

Light: Full SunMaturity: 95 DaysHabit: Vine

Botanical illustration of Jack-O'-Lantern

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Jack-O'-Lantern Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone Start Indoors Sow / Transplant Harvest
Zone 1a Protected Environment Only
Zone 1b Protected Environment Only
Zone 2a May 18th Jun 8th Sep 11th – Aug 29th
Zone 2b May 8th May 29th Sep 1st – Aug 25th
Zone 3a May 8th May 29th Sep 1st – Sep 1st
Zone 3b May 12th Jun 2nd Sep 5th – Sep 21st
Zone 4a May 8th May 29th Sep 1st – Sep 24th
Zone 4b May 6th May 27th Aug 30th – Sep 27th
Zone 5a May 1st May 22nd Aug 25th – Sep 30th
Zone 5b Apr 27th May 18th Aug 21st – Oct 5th
Zone 6a Apr 24th May 15th Aug 18th – Oct 10th
Zone 6b Apr 18th May 9th Aug 12th – Oct 16th
Zone 7a Apr 13th May 4th Aug 7th – Oct 20th
Zone 7b Apr 3rd Apr 24th Jul 28th – Oct 28th
Zone 8a Mar 25th Apr 15th Jul 19th – Nov 5th
Zone 8b Mar 16th Apr 6th Jul 10th – Nov 12th
Zone 9a Feb 27th Mar 20th Jun 23rd – Nov 26th
Zone 9b Feb 2nd Feb 23rd May 29th – Dec 9th
Zone 10a Continuous Production
Zone 10b Continuous Production
Zone 11a Continuous Production
Zone 11b Continuous Production
Zone 12a Continuous Production
Zone 12b Continuous Production
Zone 13a Continuous Production
Zone 13b Continuous Production

Crop Details

TraitValue
Days to Maturity95
Sun RequirementsFull SunFull sun
Growth HabitVine
Support NeededTrellis
Planting DepthNormal
Germination Temp (°F)70
Min Soil Temp (°F)65
Min Night Temp (°F)55
Harden Off (days)10

Culinary Notes


Chef's Note

Jack-O’-Lantern’s thick, velvety flesh roasts up firm and sweet, so it purées dense and spoon-coating instead of watery. It’s the kind of pumpkin that plays nicely with warm spices and brown butter—built for custard, pie, and deep, reduced soups where texture matters.

Best Uses

  • roasting until the edges caramelize, then scooping for thick purée
  • spiced pumpkin custards and silky pies (holds body without thinning)
  • thick soup or velouté—puree it and reduce for a spoon-coating consistency
  • spiced preserves or butter-style spreads for toast and biscuits

Flavor Profile

sweet, mellow pumpkin flesh velvety, dense roast texture toasty, caramel-leaning squash aroma gentle earthy finish

Kitchen Pairings

cinnamon ginger nutmeg cloves brown butter maple syrup

Frequently Asked Questions


What pest or disease commonly affects Cucurbita pepo (Jack-O'-Lantern) and how can I stop it?
Cucurbita pepo often gets powdery mildew (a white, dusty coating on leaves) in humid or crowded plantings. Improve airflow by spacing plants and removing heavily infected leaves early, then spray a labeled horticultural sulfur product when symptoms first appear. Water at the base in the morning to keep leaf surfaces drier, and avoid letting vines sprawl in damp, shaded corners.
How often should I water Cucurbita pepo during its main growing phase?
During active vine and fruit growth, keep soil evenly moist but not soggy—aim for about 1–2 inches (2.5–5 cm) of water per week depending on heat and rainfall. Water deeply at the roots when the top 1 inch of soil (2–3 cm) starts to dry, because Cucurbita pepo forms most of its yield from consistent moisture. Stop frequent light watering late in the season; once the fruit has fully colored, let the soil dry slightly between waterings to reduce rot risk.
How do I tell when Cucurbita pepo Jack-O'-Lantern pumpkins are ready to harvest?
Harvest when the skin is hard and fully colored (no green left), and the rind resists puncturing with a fingernail. The stem should be starting to dry and turn brown, and the pumpkin should sound hollow when tapped gently. Cut with sharp pruners leaving 2–3 inches of stem attached to help it store well.