You can plant potatoes as early in the spring/late winter as the ground is workable. The plants can usually handle light frosts, but not ground freezing. Probably February in Louisiana.
The BBC link below has some useful information.
Louisiana
potatoes are a plant. they are considered a starchy food.
Potatoes have "eyes" that produce new potatoes. The person growing them cut the potato with the eye and plant them.
It is a common misconception that potatoes are roots. They are actually tubers, and thus potatoes are a part of the potato plant. They are not the roots of any plant.
Botanically, yes, they are a vegetative plant organ. Potatoes are the tuber (root) of a fruit bearing plant. But nutritionally potatoes are considered a starch/carbohydrate and not vegetables.
A potatoes plant stored starch
APRIL
The major agriculture of Louisiana are soybeans, cotton, sugar cane, rice, sweet potatoes, pecans.
when the plant has a flower , small tender potatoes are ready, when the plant starts to wilt and turn brown, potatoes are ready under the ground!
No, Potatoes are unrelated to ferns. Ferns do not bear flowers, Potatoes do.
Kumara, Louisiana Yam, Yellow Yam.