Key facts
- Days to maturity
- 91 days
- Growth habit
- Vining
- Listed for
- United States
Overview
Tetsukabuto, sold in some catalogs as Japanese Pumpkin, is an interspecific hybrid between Cucurbita maxima and C. moschata, and that cross gives it unusual vigor: the vines shrug off vine borers and powdery mildew better than either parent and yield heavily even under stress. Fruit is nearly round, 4 to 6 pounds, with dark mottled green-black skin, a small blossom-end scar and deep yellow-orange flesh that is dry, dense and nutty, closer to a good kabocha than a butternut. Sow an inch deep after frost and space hills 6 to 8 feet apart for the long vines. Cure a week in warmth; well-stored fruit can last into the following spring. Note that as a maxima x moschata cross it needs another squash nearby for pollination.
Tetsukabuto traits
- Hybrid of C. maxima and C. moschata
- Nearly round 4-6 lb fruit with dark green-black skin
- Deep yellow-orange flesh, dry, dense and nutty
- Strong tolerance of vine borers and powdery mildew
- Very vigorous vines needing 6-8 ft between hills
- Exceptional keeper, often to spring
Good for
- Roasting and tempura
- Soups
- Long storage
Compare with other winter squash varieties
Blank cells mean there is no data on record. Select a variety name to open its page.
| Variety | Days to maturity | Growth habit | Type |
|---|---|---|---|
| Tetsukabuto this page | 91 days | Vining | — |
| Anna Swartz | 90–100 days | Vining | — |
| Australian Butter | 90–100 days | Vining | — |
| Avalon | 90 days | Vining | — |
| Blue Prince F1 | 90 days | Vining | — |
| Buttercup | 90 days | Vining | — |
| Frisco Butternut | 90 days | Vining | — |
Tetsukabuto FAQ
What kind of winter squash is Tetsukabuto?
Tetsukabuto, sold in some catalogs as Japanese Pumpkin, is an interspecific hybrid between Cucurbita maxima and C. moschata, and that cross gives it unusual vigor: the vines shrug off vine borers and powdery mildew better than either parent and yield heavily even under stress.
How many days to maturity is Tetsukabuto?
Tetsukabuto is listed at 91 days. Sowing and planting times are the same as for other winter squash varieties, so check them in the winter squash growing guide.
How does Tetsukabuto compare with other winter squash varieties?
Tetsukabuto: 91 days, vining. Similar winter squash varieties include Anna Swartz (90–100 days), Australian Butter (90–100 days), Avalon (90 days). The comparison table on this page lists days to maturity, growth habit and type side by side.
What is Tetsukabuto good for?
Tetsukabuto is grown for roasting and tempura, soups, long storage.
Sowing, care and common problems
Sowing times, care and common problems are the same for every winter squash variety, so they are covered once in the growing guide.
- Winter Squash growing guide
- Training Pumpkin Vines: Laying Out Runners and Pinching Tips
- Growing Pumpkins Vertically: Trellis, Slings and Small-Garden Squash
- Hand Pollinating Pumpkins: Timing, Technique and Why Fruit Abort
- Pumpkin Growing Calendar: From Sowing to the Curing Shelf
- Pumpkin Pests and Diseases: Vine Borers, Squash Bugs and Mildew
- When to Harvest Pumpkins: Ripeness Signs, Curing and How Long They Store
- All 219 winter squash varieties
Source
Source: Cornell University (CALS Garden-Based Learning)
The text on this page is our own summary written from the published variety record, not a copy of it.