So I've noticed that certain plants haven't been growing in a timely manner. On my starting world I had a toxic biome near the teleport point and got a bunch of toxic top seeds, but after 3-4 cycles of growing and harvesting the wheat right next to them, the toxic tops I'd planted hadn't grown at all.
I've since moved on to an arid biome world. I placed some dirt near the teleport point, tilled it, and planted some wheat, a crystal plant, and a toxic top. None of them have grown.
My inference is that plants will either grow or not grow depending on planet biome; is this correct? If so, which plants grow on which planets?
Another plausible guess is that the tilled block matters - some plants may grow in tilled dirt while others require mud. Is this correct? If so, which plants grow on which blocks?