When seed packets are marked as F1 or F2 is this a discretionary marketing
purpose in order to inform the buyer of ....
a) The quality and uniformity of the resulting hybrid produce, or....
b) Is it a legal requirement, there to protect/discourage the customer from
saving seed from the hybrid produce because the grown-on plants cannot be
guaranteed to come true to the parents?

In other words, MUST F1 and F2 seeds be described as such on the packet
....... or is it discretionary?

vsop