If January's parting volley of snow made you fear spring might yet be far away, take assurance from the crocus, harbinger of general resurrection. One variety (Crocus sativus) is also the source of saffron spice. You can grow your own and get rich selling saffron at $5000 per pound. To get a pound of spice, you must hand harvest and dry the stamen of about 70000 crocus blossoms. A pound of crocus flowers will net you about .2 oz of saffron spice.
If you're still game to grow your own saffron, Sow True Seed in Asheville will sell you bulbs.