Nice job with the guides. I know how annoying it is to create these tables lol.

Butterfly cups are available from day 1. They are bugged for a lot of people and seem to not be spawning at all. They can be found at least around the fishing spot in the forest at night.

I saw in a thread online that the Butterfly Cups might be in a foraging area you unlock from villager friendship

It's probably Delphi since she gives you some as a quest reward, but I'l be sure to update when I find them!

Can`t find the butterfly cups too.

Yep, Garlic likes Rhubarb(2nd) and Tomatoes(3rd). Garlic comes right before Hedge Mustard in the seasonings page in the encyclopedia.

Rhubarb's third like is indeed Garlic.

Thyme is what's missing from Strawberry, Baby Marrow, and Ruby Tater.
Basil's dislike is also Thyme.

Thyme is just after sugar and before Treacle, and it's likes are Baby Marrow, Strawberry, and Ruby Tater. It's Dislike is Basil.

I haven't harvested it yet, but Garlic seems to like Rhubarb and vice versa. Will confirm after harvesting and it shows up in the ui xD

Question: Did you have any luck finding Butterfly Cups? I only ever found them on the first night of the game (and checked for them every night).