I obtained Coralcreep seeds as a quest item. I am supposed to farm them and deliver the crops.
After I planted seeds on standard watered tilted soil, they popped out instantly. I figured maybe it's an underwater plant and needs to grow under water. So I made this pit:
I assumed that the plant will be fine underwater. But if I try to plant it, the blueprint glow is red, indicating I cannot place it there:
This is even though Starbounder wiki seems to suggest that underwater is where this plant belongs:
Coralcreep seeds must be planted in water onto tilled soil. The planted Coralcreeps will return to seeds once they touch the air.
What am I doing wrong?