Cucurbita maxima

Common name: winter squash
Type:
Annual
USDA hardiness zones:
-

This squash is native to subtropical areas of South America (Argentina-Bolivia-Uruguay) where it was first domesticated. It is a monoecious, creeping, vine-like annual that features running stems to 12' long. Some bush cultivars are also now available. Rounded leaves are usually unlobed with toothed margins. Flowers are pale to deep yellow. Soft or hard-shelled fruits come in a variety of shapes from rounded to cylindrical. Fruits are usually left on the plant to mature for fall harvest as winter squashes. This species includes a variety of pumpkins (some to 100+ pounds), and a large an... more »

  • Full sun
  • Medium
  • Medium

This annual vine can easily be grown from seed. It is best grown in fertile, organically rich, medium moisture, well-drained loams in full sun. Seeds may be planted outdoors when soil temperatures have risen to at least 65 degrees F., typically around the last spring frost date. Plant several seeds together in each planting site (seed hill) and thin later. Seed can also be started indoors about 3 weeks before the last spring frost date, with young plants set out after last frost date. Distance between individual plants and between rows varies depending on the variety and growing method. For vines that scramble along the ground, generally space seed hills about 3-5' apart. Fertilize well. Fruits resting on mulch, straw or boards resist rot.

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