What kind of planet did you all choose?
How do you even choose what to grow?
I started out growing some of everything, so I could construct build up some stockpiles without having to scavenge. Then I could build some of the more complicated products that are used in the landing pad, the trade terminal, etc.
With those out of the way, I shifted into just growing frost crystal, coprite, and gamma root for the purpose of making liquid glass which can be sold and is also used to build the bio-domes which allows for farming without using fuel resources. So it's useful on two fronts, with the latter feeding back into the former.
Ultimately, it depends what you want to farm for.
My not-quite-completed base:
I still have to clean up some of the ground floor stuff. I basically started redoing my base right on top of the other, transitioning materials and resources to the new version from the ugly, non-dome version on the ground which was basically just a big warehouse.
I'm tempted to try to make a three-pad landing area, but that might be pushing the construction limit. Plus, it only matters so much, since your own ship doesn't default to sitting on the landing pad when you teleport there. Maybe that, and linking your ship to the base's trade terminal and containers will be fixed later. It'd also be nice to simply get an option to move your entire base, as is, to a new planet. That should be pretty simple since all the habitable areas are the same, right?