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Casper Pumpkin Seeds

Scientific name Cucurbita pepo

About this variety

Casper pairs a smooth white rind with rich orange flesh, giving the autumn harvest a striking contrast inside and out. Fruits commonly weigh eight to fifteen pounds and serve both as seasonal decorations and kitchen pumpkins. The flesh is useful for baking, soups and sweet preparations, while the pale skin offers an unusual background for carving or painting....

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Alliance of Native Seedkeepers  |  SKU: SQ34
$200 USD

At a glance

The facts most gardeners need first

View the full variety record
15 minimum seeds per packet
Germination time

4-14 days at 70-85 F seed-zone soil temperature

  • Germination
    4-14 daysa seed-zone soil temperature of 70-85 F
  • Sun
    Full sun
  • Support and spacing
    No support needed · space 48 in · rows 72 in
  • Growth habit
    Vining or climbing · Annual
  • Planting season
    Late Spring · blooms Summer · Tender
Secure checkout Details
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Triple-tested seed qualityRegular quality and germination checks support every packet.

We regularly test seed quality and germination as lots move through storage and packing. We stand behind the seed we send and want customers to contact us when a packet does not perform as reasonably expected.

1-year seed warrantyCoverage begins on the date of purchase.

When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from the date of purchase. Conditions outside our control—including extreme weather, pests, unsuitable storage, and gardener error—are excluded. Contact us when something is not right so we can review the situation and work toward a replacement, refund, or another fair resolution.

Non-GMO / BE seed policyWe do not buy or sell genetically engineered or bioengineered seed.

Every seed variety we sell is non-GMO.

USDA’s National Bioengineered Food Disclosure Standard defines bioengineered foods as containing detectable genetic material modified through in vitro recombinant DNA methods in ways not achievable through conventional breeding or found in nature.

  • Hybrid means parent lines were conventionally crossed; hybrid does not mean GMO.
  • Heirloom and open-pollinated describe how a variety is maintained and reproduced.
  • Organic certification is separate and is shown only when verified for the individual product.

Read how we define heirloom, hybrid, and GMO/BE seed · USDA BE Standard

Packed in Colerain, North CarolinaPrepared in our seed room for gardens across the country.

Seeds are packed and shipped from Colerain, North Carolina. Our packets use forestry-certified paper, and we use recyclable paper mailers where appropriate. AONSK is also a 1% for the Planet partner while continuing to reduce waste in packing and fulfillment.

Garden tools

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Use the garden-fit planner and soil calculator to turn the recorded growing facts into a practical plan.

Open garden tools Uses this product’s recorded growing information. Local weather and garden conditions may vary.

Variety field guide

What to expect from Casper Pumpkin Seeds

Casper pairs a smooth white rind with rich orange flesh, giving the autumn harvest a striking contrast inside and out.

Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record

Casper pairs a smooth white rind with rich orange flesh, giving the autumn harvest a striking contrast inside and out. Fruits commonly weigh eight to fifteen pounds and serve both as seasonal decorations and kitchen pumpkins. The flesh is useful for baking, soups and sweet preparations, while the pale skin offers an unusual background for carving or painting. This vining variety needs a long, warm season and plenty of room to finish its crop.

White autumn pumpkins with orange flesh for the kitchen.

Growing facts

  • Botanical name: Cucurbita pepo
  • Maturity or display: About 115 days
  • Mature size: Vining plants; fruits typically 8-15 lb.
  • Spacing: 48 in between plants; rows 72 in

About the variety

The North American cultivar record lists Casper in 1992, bred by J. Howell and offered by Shamrock. It describes smooth white skin, orange flesh and eight- to fifteen-pound fruits suitable for baking. The white rind does not imply white flesh.

Starting seed

Direct sow 1 in. deep after frost when soil reaches 65 F. Keep moist; sprouts in 4-14 days. Thin to 48 in. apart, rows 72 in. apart. Use full sun and rich, drained soil.

Care through the season

Water deeply as needed and mulch after the soil warms. Keep the leaves and developing fruits off persistently wet soil. Remove insect covers at flowering so bees can pollinate female flowers. Avoid crowding even when a variety has a bush habit.

Harvest and use

Harvest in about 115 days when rinds harden, before frost. Cut with stems attached; store cool and dry. For seed, isolate other C. pepo and fully ripen fruits.

Saving seed

Squash can cross with other varieties of the same species. For dependable seed purity, isolate flowering varieties or hand-pollinate and protect marked flowers. Let selected fruits ripen fully, then clean and thoroughly dry the mature seeds. Seed saved from tender zucchini is immature.

Common problems

Check for cucumber beetles, aphids and mildew. Good airflow, crop rotation and watering at the roots reduce some problems. Poor pollination and uneven moisture can distort fruit. Inspect squash plants for squash bugs and vine-borer injury.

Frequently asked questions

When are the fruits ready?

Harvest in about 115 days when rinds harden, before frost. Cut with stems attached; store cool and dry. For seed, isolate other C. pepo and fully ripen fruits.

Does this variety need support?

Water deeply as needed and mulch after the soil warms. Keep the leaves and developing fruits off persistently wet soil. Remove insect covers at flowering so bees can pollinate female flowers. Avoid crowding even when a variety has a bush habit.

Can I save seeds?

Squash can cross with other varieties of the same species. For dependable seed purity, isolate flowering varieties or hand-pollinate and protect marked flowers. Let selected fruits ripen fully, then clean and thoroughly dry the mature seeds. Seed saved from tender zucchini is immature.

Garden toolsOpen the garden-fit planner, planting-window questions, or soil calculator only when useful

Uses this product’s recorded growing information. Local weather, soil, and garden conditions may vary.

Garden-fit planning for this variety

Will Casper Pumpkin Seeds fit your garden?

Check vine space, warmth, pollination, water, support, and harvest use. Start with the essentials, then open only the detail groups that matter to you.

Rules-based · no AI · optional answers

Add an optional ZIP code and planting date for a broad frost-window check.Use local forecasts and measured soil temperature for final planting decisions.
1Essential fitTiming, light, and space
2Temperature and exposureOptional microclimate detail
3Soil, drainage, and waterRoot-zone readiness
4Questions for this vining crop seedCrop-specific decisions
5Seed-starting fit and patienceMatch the propagation work
Soil test, pH, drainage, and amendment calculator Have a laboratory soil report? Enter pH, nutrients, texture, bed size, and site observations here. Open soil tools
Recorded soil typeLoamy
Recorded pH range6.0–6.5
Water needsHigh
LightFull sun

Laboratory report interpreter

Soil readiness for Casper Pumpkin Seeds

Cucurbita pepo

Enter only the values your report provides. The result compares them with this crop’s recorded needs and keeps laboratory recommendations authoritative.

Core report valuesStart here
Advanced laboratory valuesOptional method-aware detail

Full growing record

Complete growing and seedkeeping record

Starting and plantingSeed preparation, sowing, germination, transplanting, spacing, and early establishment
Direct sow 1 in. deep after frost when soil reaches 65 F. Keep moist; sprouts in 4-14 days. Thin to 48 in. apart, rows 72 in. apart. Use full sun and rich, drained soil.

Water deeply as needed and mulch after the soil warms. Keep the leaves and developing fruits off persistently wet soil. Remove insect covers at flowering so bees can pollinate female flowers. Avoid crowding even when a variety has a bush habit.
Season-long growing guideWater, fertility, support, weather response, pollination, containers, and care through maturity
Direct sow 1 in. deep after frost when soil reaches 65 F. Keep moist; sprouts in 4-14 days. Thin to 48 in. apart, rows 72 in. apart. Use full sun and rich, drained soil.
Harvest, storage, and usesRecognizing maturity, harvesting cleanly, handling and storage, kitchen uses, and garden roles

Harvest and storage

Harvest in about 115 days when rinds harden, before frost. Cut with stems attached; store cool and dry. For seed, isolate other C. pepo and fully ripen fruits.

Squash can cross with other varieties of the same species. For dependable seed purity, isolate flowering varieties or hand-pollinate and protect marked flowers. Let selected fruits ripen fully, then clean and thoroughly dry the mature seeds. Seed saved from tender zucchini is immature.

Uses and garden roles

Casper pairs a smooth white rind with rich orange flesh, giving the autumn harvest a striking contrast inside and out. Fruits commonly weigh eight to fifteen pounds and serve both as seasonal decorations and kitchen pumpkins. The flesh is useful for baking, soups and sweet preparations, while the pale skin offers an unusual background for carving or painting. This vining variety needs a long, warm season and plenty of room to finish its crop.

Harvest in about 115 days when rinds harden, before frost. Cut with stems attached; store cool and dry. For seed, isolate other C. pepo and fully ripen fruits.
Seed savingSelection, pollination, isolation, full maturity, cleaning, drying, labeling, and storage
Squash can cross with other varieties of the same species. For dependable seed purity, isolate flowering varieties or hand-pollinate and protect marked flowers. Let selected fruits ripen fully, then clean and thoroughly dry the mature seeds. Seed saved from tender zucchini is immature.
Pests, diseases, and troubleshootingPrevention, diagnosis, environmental disorders, common damage, and first-response checks
Check for cucumber beetles, aphids and mildew. Good airflow, crop rotation and watering at the roots reduce some problems. Poor pollination and uneven moisture can distort fruit. Inspect squash plants for squash bugs and vine-borer injury.
Frequently asked questionsDecision-focused answers that supplement the detailed guides above
When are the fruits ready?
Harvest in about 115 days when rinds harden, before frost. Cut with stems attached; store cool and dry. For seed, isolate other C. pepo and fully ripen fruits.

Does this variety need support?
Water deeply as needed and mulch after the soil warms. Keep the leaves and developing fruits off persistently wet soil. Remove insect covers at flowering so bees can pollinate female flowers. Avoid crowding even when a variety has a bush habit.

Can I save seeds?
Squash can cross with other varieties of the same species. For dependable seed purity, isolate flowering varieties or hand-pollinate and protect marked flowers. Let selected fruits ripen fully, then clean and thoroughly dry the mature seeds. Seed saved from tender zucchini is immature.
History and provenanceBotanical identity, cultivar history, regional or cultural context, uncertainty, and source records

Scientific name: Cucurbita pepo

The North American cultivar record lists Casper in 1992, bred by J. Howell and offered by Shamrock. It describes smooth white skin, orange flesh and eight- to fifteen-pound fruits suitable for baking. The white rind does not imply white flesh.

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