"Farm" Action Type Does Not Work

I wanted to award 1 xp each time a player picked a farm or wild plant, and could not find a great way to do so. I wound up going into the code and replacing the OnGrowableGathered hook with the following:

private void OnGrowableGathered(GrowableEntity growable, Item item, BasePlayer player)
{
if (growable == null || item == null || player == null || player.IsNpc)
return;

AddXPFromLoot(player, LootSettings.LootType.Farm, "farm_crop", 1);
}

And then I also added this to the JSON config file:

{
"Enabled": true,
"Item/Entity Shortname": "farm_crop",
"Action Type": "Farm",
"XP Amount": 1.0
}

...and all was well. If you could please implement something like this and/or get the Farm action type working, I'd appreciate it immensely. You defined it in your enum, but never used it. Thanks, it's otherwise a terrific plugin.