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Hubbard Squash, Winter Squash
Cucurbita maxima 'True Green Improved Hubbard'

Family: Cucurbitaceae (koo-ker-bih-TAY-see-ee) (Info)
Genus: Cucurbita (koo-KER-bih-ta) (Info)
Species: maxima (MAKS-ih-muh) (Info)
Cultivar: True Green Improved Hubbard
» View all varieties of Squash


Unknown - Tell us


18-24 in. (45-60 cm)


8-10 ft. (2.4-3 m)

Days to Maturity:

101 to 110 days

Mature Skin Color:

Medium Green


12 to 20 pounds (5 to 9 kg)



Disease Resistance:

Unknown - Tell us

Seed Type:

Open Pollinated

Other details:

This plant is attractive to bees, butterflies and/or birds

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Propagation Methods:

From seed; direct sow after last frost

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds


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

Shawnee Mission, Kansas

Saint Louis, Missouri

Radford, Virginia

Gardeners' Notes:


On Jan 25, 2005, Farmerdill from Augusta, GA (Zone 8a) wrote:

The original Green Hubbard was introduced around the 1790’s, and it has dark bronze-green skin and delicious golden flesh. The fruit are 10-15 lbs. each, and are excellent keepers, J.H. Gregory’s Company made this squash famous back in the 1840’s." The Green Hubbard has been one of my favorites when I lived in a cooler climate. It is susceptible to squash vine borers, but if the whole bed has rich soil, it will put down a root at each leaf node and keep on trucking. I have gotten nice squash from vines that were no longer attached to the original stem. Very hard shell, I used a machete and hammer to open them, but they will keep for a long time.