I don't know about cumin, but ginger sure can! I'd grow the ginger in a wide shallow pot... I'd have it at least 12" accross, it spreads. And the growing season is I'd say, when the temps are around 50º at night time and above... after that, start cutting back on water letting it go dormant with almost no water during the winter... or it will rot. No freezing allowed. :o)

Both can do quite well in pots. I find ginger needs a bit of space, so for me it's in the garden - that way it spreads further and I get more roots. Cumin grows to about 30cm tall, and it needs to be closely sown because it tends to be a bit of a floppy plant which needs support from its mates - so a decent-sized pot is probably a good place for it. Let it self-seed.

Thanks very much I will give them both a try.