SEEDS OF FAITH: GROWING JOB'S TEARS

Growing Job's Tears

Yes, they can be started indoors if you keep a couple of things in mind. They are a grass type plant. This type of plant doesn't transplant well if it's taken out of the pot. One solution is to grow them in peat pots so that the pot and all can be planted. Don't worry, the roots will find their way out once planted but it's a good idea to slit the sides just before planting.
I would supplement light so that they get 12 - 13 hours a day. I planted some late last year (early June) when the days were getting shorter to see what would happen. At a young stage they started setting seeds but it didn't amount to anything. I think they will need longer day lengths.
It will take bottom heat to get them to come up. Set your heat pad around 80 degrees. Cool temps and they will rot.
Don't keep them in the pots too long. Pot growing is difficult because the nutrients are used in varying amounts. One needs a degree in plant nutrition to properly grow in pots. Growing for 3 or so weeks shouldn't be a problem.
As far as prepping them, just let them dry in an open container so they don't get moldy. The next spring, choose healthy ones to plant. Soak overnight in warm water. One way to keep the water warm overnight is if you have a gas stove with a pilot, the pilot keeps the surface of the stove warm - some can get too hot though. Put enough water in a container so that it doesn't evaporate overnight. Put in the seeds. Some will float, some will sink. Doesn't seem to be a difference.
Another method is to take a file and file into the base of the seed to break the coating so that water can penetrate. This is especially effective with hard coated seeds, which these can easily be classified as.