About 8 ounces or about a coffee cup full. I got about the same amount when planting my garden and I planted a row and 1/2 and the rows were almost 70 feet long. The store I went to this summer measured them out and got about $2's worth and planted the rows with a few left over and they weighed out to be about 9 ounces. . These are from my garden and my green beans did awesome this year this is why I saved some seeds enough for me to have again next some and to share. Hope this helps and for fun going to through in a surprise seeds from my garden also.
I never staked mine up though I just let them run, but they are the pole kind and will run if not stalked up on a string or something, thanks for asking