Distinctive Brown Skin
Produces attractive flattened, ribbed fruits that develop a rich chestnut-brown color as they mature.
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Futsu Squash is a Japanese heirloom winter squash variety known for its distinctive flattened shape, deeply ribbed skin, and rich chestnut-brown color when mature. Its sweet, nutty flesh is popular for roasting, baking, soups, and other seasonal dishes. This productive climbing vine grows well in sunny vegetable gardens with fertile, well-drained soil.
Produces attractive flattened, ribbed fruits that develop a rich chestnut-brown color as they mature.
Features flavorful orange flesh with a sweet, nutty taste suitable for a variety of cooked dishes.
Develops spreading vines that benefit from plenty of garden space and suitable growing conditions.
Suitable for roasting, baking, steaming, soups, and other seasonal vegetable recipes.
| Scientific Name | Cucurbita moschata |
| Common Name | Futsu Squash; Black Futsu Squash |
| Plant Family | Cucurbitaceae |
| Seed Type | Vegetable Seeds |
| Plant Type | Annual Winter Squash |
| Variety | Japanese Heirloom |
| Fruit Shape | Flattened, round, and deeply ribbed |
| Fruit Color | Green when young, developing chestnut-brown skin at maturity |
| Flesh Color | Orange |
| Flavor | Sweet and nutty |
| Growth Habit | Spreading climbing vine |
| Planting Season | Spring to early summer after frost danger has passed |
| Germination Time | Approximately 7–14 days under suitable conditions |
| Germination Temperature | Approximately 70–85°F (21–29°C) |
| Sunlight | Full sun |
| Soil Requirements | Fertile, organic-rich, well-drained soil |
| Watering | Regular and consistent watering |
| Days to Maturity | Approximately 100–120 days, depending on growing conditions |
| Uses | Roasting, Baking, Soups, and Cooking |
Add Japanese heirloom flavor to your vegetable garden with Futsu Squash. Its distinctive brown fruits and sweet, nutty orange flesh make it a versatile choice for homegrown seasonal cooking. Provide full sunlight, fertile soil, and consistent moisture for healthy vine growth and fruit development.
Find helpful information about Futsu Squash seed planting, harvesting, and cooking uses.
Futsu Squash is generally harvested when its skin develops a mature chestnut-brown color and becomes firm. The stem should begin to dry and harden. Harvest before frost damages the fruits, leaving a short section of stem attached. Properly cured fruits can be stored in a cool, dry, well-ventilated location.
Yes, the relatively thin skin of mature Futsu Squash is generally edible when cooked. It can soften during roasting or baking. Wash the squash thoroughly before preparation, and cook until the flesh and skin reach your preferred tenderness.
Futsu Squash develops spreading vines and needs adequate room for healthy growth. Allow approximately 3–5 feet between plants where garden space permits, while providing additional room between rows. Actual spacing depends on the growing method and available garden area. Vines can also be trained onto a sturdy support when appropriate.