VegetablePumpkin
Jarrahdale Pumpkin
Heirloom Pumpkin
This stunning New Zealand heirloom transforms the traditional pumpkin patch with its otherworldly slate blue, ribbed exterior that conceals deep orange flesh within. Jarrahdale pumpkins mature in 100 days across zones 3-13, producing compact bush plants that yield 4-6 medium pumpkins weighing 4-10 pounds each. What truly sets this variety apart is its exceptional culinary quality, the thick, stringless flesh delivers complex, sweet flavors that make it a favorite among serious cooks and bakers.
Photo © True Leaf Market
Growing Conditions
USDA Zone
3-13
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam, Rich
Preferred Temp70-85°F
Growth Stats
24 in
Height
—
Width
36 in
Spacing
100–100
Days to Harvest
PeriodAnnual
TypeVine
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
3-13
Size
24in H x ?in W
Growth
Annual
Care
Moderate
Hover over chart points for details
Highlights
The dramatic contrast between Jarrahdale's blue-grey exterior and vibrant orange interior makes it a showstopper in autumn displays, but its true magic happens in the kitchen. The dry, stringless flesh roasts beautifully for pies and soups, while the large seeds are equally delicious when roasted. These compact bush plants are incredibly productive for their size, and the finished pumpkins store exceptionally well, making them practical as well as beautiful.
Common Uses
While Jarrahdale's striking appearance makes it perfect for autumn decoration and seasonal displays, its culinary applications truly shine. The thick, creamy flesh excels in pies, soups, and baked goods, delivering rich flavors without the stringiness that plagues many pumpkin varieties. The large seeds roast beautifully as a nutritious snack, making this variety valuable from skin to center.
Growing Timeline
First Bloom
Early Summer
First Harvest
Late Summer
Last Harvest
Early Fall
Care Instructions
Start Indoors
Start seeds indoors 2-3 weeks before transplanting in biodegradable pots. Sow 2-3 seeds per 2-inch container and germinate at 75-95°F. Use scissors to thin to one strong plant per container to avoid root damage.
Transplant Outdoors
Transplant after all danger of frost has passed and soil temperature reaches 70-90°F. Harden plants for 4-7 days before transplanting. Handle seedlings carefully to minimize root disturbance.
Direct Sow
Direct sowing is recommended 2-4 weeks after the average last frost date when soil temperature is consistently 70-90°F. This method typically produces stronger plants than transplanting.
Harvesting
Harvest Jarrahdale pumpkins when the distinctive blue-grey color has fully developed and the skin feels hard and cannot be dented with a fingernail. The stem should be dry and beginning to separate naturally from the fruit. Cut with a sharp knife, leaving 2-3 inches of stem attached to prevent decay. Handle carefully to avoid bruising the beautiful skin.
Growing Calendar
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Companion Planting
Ecology & Traits
Edible
Scientific Classification
Cucurbita mixta Pang.
Family
Cucurbitaceae
Genus
Cucurbita
Duration
Annual
Growth Habit
Bush
Native Status
L48 (I)PR (I)
History & Origin
“Jarrahdale pumpkin traces its roots to New Zealand, where it developed as a treasured heirloom variety. This cultivar has journeyed from its antipodean origins to become a sought-after variety among gardeners who appreciate both ornamental beauty and culinary excellence, representing the global exchange of heritage seeds that connects gardeners across continents.”