They have them for seedlings but I'd like something bigger.

So when I plant them in the ground or a bigger pot I don't need to take the plant out of the pot, I just put the whole thing in and fill around it with dirt.

Or maybe some wireframe pots with that coconut husk liner. I'm pretty sure that stuffs biodegradable.

You couldn't use them inside but that's fine.

Or you could even just stick them in the corner of the garden somewhere and forget about them and the plant roots will just grow through the bottom of the pot into the ground.

And then you don't have to do anything!