chufa is a nut like tuber that grows in the ground- its a golden nut that grows just under the ground and turkeys love to scratch em up! Quote from the bag! as long as its planted after the final frost it will mature in 90 to 110 days so i would assume you could plant it anywhere without a frost for 100 days straight! the bag give you full directions on planting and soil preperation and fertilizing instruction. A 9lb. bag is good for a 1/4 acre plot and i paid $20. once it looks like we will be out of the freeze possibility in the northeast i will be planting this stuff and in 90 days we will see what happens!