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Jarrahdale Pumpkin Seeds

Cucurbita Maxima
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About

Jarrahdale Pumpkin or Blue Pumpkin is a large winter squash with thick blue-grey skin and bright orange flesh. Blue Jarrahdale Pumpkins are heavy, drum-shaped fruits of 10–18 pounds. They have become a part of ornamental kitchen gardens, besides its culinary use. It grows as an annual vine across USDA Zones 3 through 11, reaching 18–36 inches in height. KVITER offers a packet of 25 non-GMO, heirloom Jarrahdale Pumpkin seeds.

Quick Facts

Life Cycle
Life Cycle Annual
USDA Zones
USDA Zones 03–10
Light Requirements
Light Requirements Full sun
Germination Time
Germination Time 5-10 days
Stratification
Stratification Required
Spacing
Spacing 18-36 inches
Sowing Method
Sowing Method Direct Sow; Start Indoors
Soil
Soil Well-drained; Rich
Flowering Period
Flowering Period Summer
Water Requirements
Water Requirements Moderate (regular watering)
Maturity Time
Maturity Time 100-110 days
Growing Habit
Growing Habit Climbing/Vine

How to Grow & Harvest

Sowing & Timing

Sow Jarrahdale Pumpkin seeds outdoors only after the last spring frost date and soil once temperature is consistently between 60–85°F. Plant seeds 1 inch deep, spacing plants 36 to 48 inches apart. Blue Jarrahdale Pumpkin seeds germinate in 4-14 days depending on temperature conditions. When the growing season is short, start Blue Pumpkin seeds indoors 2–3 weeks before transplanting, though the roots dislike disturbance, so use biodegradable pots.

Soil, Watering & Fertilization

Jarrahdale Blue Pumpkin plant requires at least 6-8 hours of full sun. In shade, vines are weak and fruits much smaller. Soil should be fertile, well-drained, and rich in organic matter. Work in compost before planting to get the proper fruit size. Water deeply and regularly at the base: 1 to 2 inches per week. Soil should be consistently moist, and don’t let it dry out between waterings.

Growth & Harvest

Mulch around the base of each plant to keep soil temperature stable during summer heat and hold moisture. Jarrahdale Pumpkins are ready to be harvested in 85 to 100 days from sowing. After harvest, cure the fruits for 10 to 14 days in a warm, dry spot. This hardens the skin and can extend storage to several months.

FAQ

Are these blue Jarrahdale Pumpkin seeds for non-GMO?

Yes, at KVITER you can buy Jarrahdale Pumpkin seeds of premium quality. We offer non-GMO open-pollinated, heirloom seeds with high germination rates. 

Is Jarrahdale easy to grow?

It's genuinely low-maintenance once it's established. All it needs is sun, consistent watering, and enough space. It has good disease resistance and handles heat well.

What plants grow well alongside Jarrahdale Pumpkin?

Corn and climbing beans are the traditional "Three Sisters" combination that's been used for centuries. Nasturtiums and marigolds planted nearby help deter squash bugs and aphids. Keep distance from other cucurbits in limited space, as they compete for the same nutrients and can cross-pollinate.

How is Jarrahdale Pumpkin used in cooking?

The flesh is dense and dry, which makes it good for roasting, soups, and casseroles. Unlike many large pumpkins, it doesn't turn watery when cooked. There's no need to peel skin, as it becomes soft enough to eat when roasted.