Photo by Melody

PlantFiles: Butternut Squash, Winter Squash
Cucurbita moschata 'Waltham'

Family: Cucurbitaceae (koo-ker-bih-TAY-see-ee) (Info)
Genus: Cucurbita (koo-KER-bih-ta) (Info)
Species: moschata (MOSS-kuh-ta) (Info)
Cultivar: Waltham

» View all varieties of Squash

5 vendors have this plant for sale.

26 members have or want this plant for trade.

Butternut (winter)

12-18 in. (30-45 cm)

4-6 ft. (1.2-1.8 m)

Days to Maturity:
111 to 120 days

Mature Skin Color:

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


Disease Resistance:
Unknown - Tell us

Seed Type:
Open Pollinated

Other details:
Average Water Needs; Water regularly; do not overwater

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

Propagation Methods:
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow unblemished fruit to ripen; clean and dry seeds

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6 positives
5 neutrals
No negatives

Gardeners' Notes:

Positive BlackEarthSquid On Sep 23, 2013, BlackEarthSquid from Black Earth, WI wrote:

These are fantastic. Everyone has said a lot about yield and how vigorous they are, so I will just say how LONG they keep - all winter and then some. I was eating these squashes the following April after harvest! And, they taste delicious. Buttery, sweet and tasty, they need almost no seasoning. And certainly butter on your butternut is optional =)
Your mileage may vary, but we love the Walthams.

Positive 3wer4c On Jun 15, 2011, 3wer4c from Leetonia, OH wrote:

These plants produce well. We picked the squash at the end of August last year and many fruit are still keeping.

Neutral CapeCodGreen On May 12, 2009, CapeCodGreen from West Barnstable, MA wrote:

I have grown Waltham butternut in three different locations in southeastern Massachusetts (Plympton, Pembroke, and currently on Cape Cod). Normally I have been successful with 3-5 fruits per vine. Last summer productivity dipped to one fruit per vine. I suspect I have a virus in my soil that's destroying the vine prematurely. I've checked for borers and there were none. My pumpkins and summer squash suffered the same fate. Lettuces, beans, tomatoes, eggplant, cucumbers, peppers, were all fine.

Neutral lssfishhunter On Jan 30, 2009, lssfishhunter from Jonesville, SC (Zone 7b) wrote:

Vines keep growing and growing producing a good many butternuts. Taste is good.

Positive Spriggin On Jun 18, 2007, Spriggin from Selma, OR wrote:

Prolific and great tasting. Stores well into the next season.

Neutral berrygirl On Mar 3, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

It was an AAS winner in 1970 and is "the result of years of patient refinement and selection by Bob Young of Waltham, Mass.

Positive biscombe On Nov 12, 2006, biscombe from Orgiva, Granada
Spain wrote:

This was a big hit in my garden this year! A great keeper, lovely sweet taste and was the best producer in our squash plot!

Positive pajaritomt On Jul 30, 2006, pajaritomt from Los Alamos, NM (Zone 5a) wrote:

This is one of my family favorites. I grow more every year and never have enough. I learned that it is better to leave them on the vine until the vine dies, then store a couple weeks more in a cook but frost free area so they will ripen. Deborah Madison says in one of her books that it is the best American squash.

Neutral aswope On Dec 8, 2005, aswope from San Antonio, TX wrote:

Harvest before first frost or when ready. Leave 1-2 inches of stem attached.

Excellent for storing, and is great baked, steamed, broiled, mashed and in pies or custards. Store in a cool (45-55 degrees F.), dry place to prevent shrivel, lose weight, and to postpone spoilage as long as possible.

Excellent resistance to vine borers.

Plant late in the Spring when soil is warm and all danger of frost is gone. Cover when a threat of 40 degrees or cooler is present during Spring.

Vines range up to eight feet.

Positive melody On Apr 16, 2004, melody from Benton, KY (Zone 7a) wrote:

Tasty and productive. I couldn't ask for a better winter squash. They keep for long periods and bake up to a wonderful texture.

Neutral dave On Aug 21, 2001, dave wrote:

This is a winter squash noted for its longevity in storage, as well as it's unique buttery flavor.

Sow after all threat of frost is passed. Most varieties take 90 days to mature.


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

Hartford, Alabama
Fayetteville, Arkansas
Durham, California
Hornbrook, California
Redding, California
Stafford Springs, Connecticut
Kamuela, Hawaii
Lahaina, Hawaii
Madison, Illinois
Blue Grass, Iowa
Shawnee Mission, Kansas
Benton, Kentucky
Brodhead, Kentucky
West Barnstable, Massachusetts
Bellaire, Michigan
Onamia, Minnesota
Blue Mountain, Mississippi
Lucedale, Mississippi
Aurora, Missouri
Saint Louis, Missouri
Clovis, New Mexico
Los Alamos, New Mexico
Santa Fe, New Mexico
Binghamton, New York
Buffalo, New York
Candler, North Carolina
Charlotte, North Carolina
Leetonia, Ohio
Vinton, Ohio
Selma, Oregon
Hatfield, Pennsylvania
Jonesville, South Carolina
Harrison, Tennessee
Lenoir City, Tennessee
Galena Park, Texas
Katy, Texas
Liberty Hill, Texas
San Antonio, Texas
Jensen, Utah
Grand Mound, Washington
Volga, West Virginia
Black Earth, Wisconsin

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