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Winter Squash Seeds, Jarrahdale Pumpkin
Description
(Cucurbita maxima). Slate, blue-grey, 6- to 10-lb pumpkins of superb quality. They have a flat, ribbed, and very decorative shape. Popular in Australia, and an overall excellent variety. One of the more tasty varieties for many savory dishes and is excellent for a year-round supply of squash, as these will often keep well over 12 months!
- 100 days to maturity
- 6-8 hours of full sun
- Sprouts in 5-10 days
- Seed Depth: 1/2-1”
- Plant Spacing: 18-36"
- Ideal Temperature: 70-95 F
- Frost Hardy: No
Growing Tips, Tricks and FAQs
Growing Tips
Jarrahdale pumpkins thrive in warm, well-drained soil rich in organic matter. These pumpkins require full sun, so choose a location that receives at least 6-8 hours of sunlight per day. It's important to plant them after the last frost when the soil temperature is consistently above 65 F.
When to Grow
Start planting Jarrahdale pumpkin seeds outdoors in late spring or early summer, once all danger of frost has passed. In cooler regions, you can start seeds indoors 3-4 weeks before the last frost and transplant them once the soil has warmed up sufficiently. If transplanting, be careful not to disturb the roots when doing so.
How to Sow and Plant
Directly sow seeds 1/2-1 inch deep in mounds or rows spaced about 3-5 feet apart. If planting in mounds, place 3 seeds per mound and thin them to the strongest seedling. Plants should be spaced 18-36 inches apart.
How to Grow
Water Jarrahdale pumpkins deeply and regularly, aiming for about 1-2 inches of water per week. Mulching around the plants helps retain moisture and suppress weeds. Fertilize with a balanced fertilizer every few weeks, especially as the plants begin to flower and set fruit. Consider using trellises if space is limited, as this can help manage the vines.
How to Save
- There are four different species of squash: Cucurbita maxima, C. pepo, C. moschata, and C. mixta. They will not cross pollinate with each other, so it is possible to grow one of each species for seed saving without worrying about cross pollination.
- If you are planning to grow several varieties of more than one species, you can bag the blossoms and hand pollinate to avoid crossing.
- Whether it is a summer or winter squash, you must let the fruit completely mature before extracting the seeds, and cure for at least two weeks.
- Scoop the seeds, place them in a bucket, and add just enough water to cover. Let sit at room temperature to ferment for two days before rinsing off the pulp.
- Lay seeds out to dry on newspaper or paper plates.
- Stored in a cool, dry place, seeds will remain viable for up to four years.
FAQ
How long does it take for Jarrahdale pumpkins to mature?
Jarrahdale pumpkins typically take around 100 days from planting to harvest, depending on growing conditions.
What are common pests and diseases, and how can I prevent them?
Common pests include squash bugs, cucumber beetles, and aphids. These can be managed by regular monitoring and using organic pest control methods like neem oil. Diseases like powdery mildew and downy mildew can be prevented by ensuring good air circulation, avoiding overhead watering, and rotating crops.
Can Jarrahdale pumpkins be grown in containers?
While possible, Jarrahdale pumpkins prefer being grown in the ground due to their extensive vine growth. If space is limited, use a large container and ensure the plant receives adequate support and care.
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