Sibley Squash

Cucurbita maxima | SKU: 0660
3 Reviews
$3.75 to $12.08
  • Banana type squash
  • Hard, light blue rind
  • Thick, sweet flesh
  • Excellent keeper
  • Winter squash
  • 110 days

$3.75 to $12.08

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Item Details

(C. maxima) (aka Pike’s Peak) Introduced by Hiram Sibley & Co. of Rochester, New York in 1888. Superb banana squash with thick sweet flesh. James J. H. Gregory found it simply “magnificent.” Winner of the SSE staff taste test in 2014. Hard-rinded, inversely pear shaped, excellent keeper. 110 days.

Learn to Grow Sibley Squash

Direct Seed: 1" Deep

Seeds to Hill: 6-8 Seeds

Thin: To 3-4 Plants

Light: Full Sun

Instructions - Sow seeds outdoors in 12" diameter hills after danger of frost has passed. Hills should be spaced 6' apart in all directions. Can also be started indoors 3 weeks before transplanting out.

Ratings & Reviews

3 reviews

  • 3 stars
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  • 2 stars
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  • 1 star
  • 0 reviews

It grew in Maine


Of all of the squash seed we've purchased from SSE, this is one of the few that has produced fruit for us here in coastal Maine (the other was Long Island Cheese. Pennsylvania crookneck were a complete bust). The Sibleys are smaller than in the photo (we're still working to improve our soil). We have not yet had a frost or nights below 40 (today is Oct 19, the cold is overdue). It's a race to see if the vines survive long enough for the fruit to ripen, but the squash are edible size. If we like the flavor, we'll save the seeds and start them inside to give them a head start next year.

Sibley Squash


I have grown these for over 20 years; my first seed found at a seedsman in California known for carrying the rare and different. Without doubt the nicest winter squash I've grown. They become very sweet in storage... eventually ripening to a golden orange colour if you can leave them that long ;) yield varies in my coastal climate and they won't size up if you are stingy with the water...heavy feeding large plants that need lots of room to show off their potential, but worth the investment.

Wow. Great in 3-Sisters


Wow! This was the squash in my three-sisters crop this year (2022) we had early vine borers, but other vines took roots and spread far and wide!! I did not mow our small back yard but 3 times. Minimum watering even in drought year!! Harvested three huge more than ten pounds items pulse many about 3-5 lbs.