He was right. 6 plants and 1 ounce. Doesn't make any difference how old/young, use, etc the plant, if it has roots and leaves, it's a plant. As far as I know no one has fought the difference between newly picked and dried weight for the 1 ounce usable.
If you have a card, you could have her 6 (plus one ounce) and your 6 (+1 oz). If she grew also, and was your caregiver, between the two of you you could theoretically have 24 plants and 4 oz.
Dennis from Montana