Seedling Planter

I have been thinking about designing a reusable planter for starting seedlings for a while. So, I decided to try making something in Fusion 360. As you can see, the default size, on the left, is pretty small. I didn't think it would be terribly practical, so I tried scaling it in my slicer. That is where the other two prints come in. I printed the other two 200% and 300%. I think that 200% works best for smaller seeds, while 300% should work for things such as melons and other larger seeds.
Thi