It could be locked until a later point in game, and with the greenhouse, one can keep planting, harvesting and craft more seeds we have now.
That's what i do, just plant as many wild seeds as possible, with a type of speed gro it'll be faster, and when done, harvest and craft more.
I kinda like it, just planting seeds for only one kind of forageable.
There's not that much use in it, but could be nice in case one needs certain forages, like for cooking... although more and more effective dishes requiring some would be nice, as some are somewhat useless right now.
If we could add our personal taste to our characters, making that consumable a bit more effective on that character (like one would like leeks most, so that character gets healed a bit more from leeks), that'd make this suggestion way more useful.
I like it just for the extra feature we'd have, and it can be useful.