Growing saffron in hydroponics. I'm sure aquaponics can be used too. This is a great page showering you how much you can yield, but it's not a get rich quick scheme unless you live in a hot, dry area to grow outside. "Peyam found that he could grow 72 saf
Hydroponics for Beginners: The Ultimate Hydroponics Crash Course Guide: Master Hydroponics for Beginners in 30 Minutes or Less! Aquaponics for Beginners - Hydroponics - Kindle edition by Sarah Cleaver.