85 to 100 days — The plants grow thirty to thirty four inches tall, have purple flowers, and set pods that contain two to three beans each. The beans are medium to large in size, cream in color, and contain about 21% oil and 40% protein. They can be harvested at about 85 days for edamame
) and dry at about 100 days.
'Amsoy' was bred as a cross between 'Adams' and 'Harosoy'. It was added to the USDA's seed bank on August 1, 1962 as accession number PI 548506. Each packet contains 25 to 30 seeds.