Some tiny suggestions:
The ability to place signs would be nice. I would like to organize my area with the different Flowers I have.
The ability to place torches around the world would be nice touch to. I make videos for this game and the darkness really makes it hard for viewers to see what is going on within the game world. And holding a torch is not that fun as I usually am doing other things.
Being able to sleep whenever you want ( or as soon as night hits would be good. ) Sometimes I just want the daylight and not it be so dark, so having to wait until my Sleep meter gets to red is a bit annoying.
The Potions book should be in the pause menu and should also be able to in your inventory. Just a bit of extra work to look at the book every time I want to do something.
( Future Release Ideas: Maybe Plants have more animations. I like the particles effects so far and that's great, but maybe make some dance, have a cloud over them ( depressed plants? LOL ), something to give a garden more life. I even have an idea for dangerous plants, Plants that do damage and must be placed in a special garden (or fenced off) away from other plants or else they would eat them LOL. )
So far, that's all for now. Great game and I can't wait for more.