Unless your pots are seen as "moveable resources" I don't think they should be placed in the 2nd. Your primary interest is in what the pots will produce, not as a resource (such as gold, jewelry held for its value, a means to attain more personal liberty. They are not (I don't think) seen as "assets" by you, but instead are "utilitarian" and primarily 6th House.
The choice of a house for the quesited often involves one's perspective on them, or their state of develpment.
The Sixth is the house of "crops" in the sense that they provide us with something necessary or useful, and that use is a primary feature of the crop. Your crop, while it sits in the field soaking up water and sunshine (amber waves of grain) can be seen as 4th House, but the grain in the granary, used to make tomorrow's bread and feed the 4th House family, is Sixth. (In my opinion).
Did you cast a planting chart for your crop? Did you pay attention to the phase of the Moon? If a crop is grown for its flower buds, seeds, fruits, etc., (sunflowers, corn) then planting on the burgeoning Moon is good. Root crops generally like to be planted on the wane.