Kabocha Squash, Japanese Pumpkin 'Jarrahdale'

Cucurbitamaxima

Family
Cucurbitaceae (koo-ker-bih-TAY-see-ee)
Genus
Cucurbita (koo-KER-bih-ta)
Species
maxima (MAKS-ih-muh)
Synonym
Sun Exposure
Full Sun
Foliage
Succulent
Height
18-24 in. (45-60 cm)
Spacing
8-10 ft. (2.4-3 m)
Hardiness
Not Applicable
Danger
Handling plant may cause skin irritation or allergic reaction
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Bright Yellow
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Other Details
Category
Vegetables
Vines and Climbers
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Propagation Methods
From seed; direct sow after last frost
Seed Collecting
Allow unblemished fruit to ripen; clean and dry seeds
Regional

This plant is said to grow outdoors in the following regions:

Lafayette, California

Milledgeville, Georgia

Bryan, Texas

Virginia Beach, Virginia

Madison, Wisconsin

Park Falls, Wisconsin

Phillips, Wisconsin

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Gardener's Notes:

6
positives
3
neutrals
0
negative
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C
Broomfield, CO (Zone 5b) | April 2008 | positive

From your friends at Botanical Interests, inc.: The Jarrahdale pumpkin is an Australian heirloom. It is deeply ribbed with a shiny slate ...Read More

W
W
Phillips, WI | October 2007 | neutral

I am doing a story for the paper I work for on a man who grew these in Northern Wisconsin (Price County), and the smallest one he had was...Read More

J
J
Palmyra, IL (Zone 5b) | November 2006 | neutral

I think Blue/Gray needs to be added to the Mature Skin Color selections...it averages 100 days to maturity

G
G
| July 2006 | positive

Grows well in central England. Tastes very good too.

M
Granville, NY | June 2006 | positive

I bought a Jaradale pumpkin at a farmer's market two years ago, and have planted seeds from that pumpkin for the past two seasons. The p...Read More

R
Madison, WI (Zone 5a) | January 2006 | positive

Beautiful and unusual winter squash. Looks kind of like a blue-grey pumpkin. Flattened with thick ribs. It has turned a mottled peach-blu...Read More

F
Augusta, GA (Zone 8a) | November 2004 | neutral

An older open pollinated wineter squash from Australia. (100 day) About 10 lbs, with slate gray rind and orange flesh. A good storage squash.

K
Modesto, CA (Zone 8b) | November 2004 | positive

I highly recommend this for winter squash lovers. Mild, sweet, nutty flavor. It is large (whole one pictured weighed 15 lbs) and feeds ...Read More

T
T
Murfreesboro, TN (Zone 7a) | January 2004 | positive

Gorgeous blue/gray color and great pumpkin-esque shape combine to make this a wonderful feast for the eyes. With any luck, I'll be able ...Read More

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