Butternut Squash, Winter Squash 'Waltham'

Cucurbita moschata

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


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:

Unknown - Tell us

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


This plant is said to grow outdoors 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 Joseph, 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

Smithfield, Virginia

Grand Mound, Washington

Rochester, Washington

Volga, West Virginia

Black Earth, Wisconsin

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Gardeners' Notes:


On Feb 27, 2021, davesgardensfu from Smithfield, VA,
United States wrote:

I don't know why people are leaving neutral reviews. These winter squash taste great, and are easy to grow. Try cinnamon and/or butter with them. They need lots of room. They keep until the next years crop.


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.


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.


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.


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

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


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

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


On Mar 3, 2007, berrygirl from Braselton, GA (Zone 8a) 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.


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!


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.


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.


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.


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.