These make beautiful plants. A bit scraggly. A bit like bonsai. They take interesting shapes the peppers are plentiful and pendant type, they hang like little lanterns instead of stick upright on the stalks. The plants are annuals that exist as perennials. They've been known to live several years as houseplants taken outside back and forth. Mine lasted three years then gave up the ghost and there was no saving it that last time it shed leaves, it just petered out and didn't take up water anymore. Other sites write of keeping them as bonsais for years on end.
They're easy to grow. Although they do need considerable heat to germinate. And it must be steady.
Green chile plants from the grocery store most likely will not germinate. Their green color means the fruit is immature and so are the seeds inside of it. Usually they are not viable unless the green chile is nearly ready to turn red. The seeds may be viable if the pod is on the cusp of maturity, but I doubt it.
Google Images [habanero pepper plant]
Seed from dry pods at the grocery store work too, so long as the chiles are only dried and not roasted. Then, from red chiles the dry seeds work very well.
Chile Pepper Institue, $6.00 for 30 seeds. That is not so bad a price.
Amazon dry Thai chiles, $4.00 for 3.5 OZ , a lot, a couple hundred pods all with over a dozen seeds each. Asian market have these too.
If these plants grow then I'll show them again later.