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PlantFiles: Buttercup Squash, Winter Squash
Cucurbita maxima 'Bonbon'

Family: Cucurbitaceae (koo-ker-bih-TAY-see-ee) (Info)
Genus: Cucurbita (koo-KER-bih-ta) (Info)
Species: maxima (MAKS-ih-muh) (Info)
Cultivar: Bonbon

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One vendor has this plant for sale.

Buttercup (winter)

24-36 in. (60-90 cm)

8-10 ft. (2.4-3 m)

Days to Maturity:
81 to 90 days

Mature Skin Color:
Medium Green

2 to 3 pounds (1 to 2 kg)
4 to 6 pounds (2 to 3 kg)


Disease Resistance:
Unknown - Tell us

Seed Type:

Other details:
This plant is attractive to bees, butterflies and/or birds
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Propagation Methods:
From seed; direct sow after last frost

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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to view:

By Sequee
Thumbnail #1 of Cucurbita maxima by Sequee

By Joan
Thumbnail #2 of Cucurbita maxima by Joan


No positives
1 neutral
No negatives

Gardeners' Notes:

Neutral jcangemi On Nov 4, 2004, jcangemi from Clovis, CA (Zone 9a) wrote:

This is a 2005 AAS winner described as having four improved qualities: Unlike other 'buttercup' types, it has an upright, semi-bush habit. It will attain height of 2.5 feet and may spread a vine from 8-10 feet. Bred for earliness and can be harvested about 81 days from transplanting. Improved for a sweeter flavor and smoother texture. Stringless fruits are 6 inches in diameter and weight about 4 pounds.

In northern areas, sow seed indoors 4 weeks before last frost date. Maintain 70 F. Germinates in 7-10 days. Young plants should be kept warm and in a sunny location until transplanted in warm garden soil.


This plant has been said to grow in the following regions:

Grand Portage, Minnesota
Carmel, New York
Staten Island, New York
Belfield, North Dakota
Salt Lake City, Utah

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