Triamble Squash Seeds. (C. maxima) This heirloom winter squash gets it's namesake from the unusual shape of the fruit it bears. Heirloom Triamble Squash is also called Shamrock Squash because of the 3 distinctive lobes of the slate gray fruit. The thick stemmed fruit of Triamble Squash is deeply ribbed and wrinkled. Triamble Squash has sweet orange flesh is thick and tasty. Great baked or in soup. Triamble Squash are an excellent choice for long time storage. 105 days until harvest. Packet contains approximately 25 seeds grown naturally with love and care. Happy Planting! We have a wide variety of Heirloom Vegetable, Herb, and Flower Seeds for sale. With all of our seeds: Your first packet ships for $2.50. All additional packets ship free. So your total shipping on a seed order is $2.50 no matter how many packets you order.