Is it intended for Arbor Gelatinosa to be plantable on gleba and not foliax? Says pressure is too low. Seems Arbor Xenofructus is the same.

have you updated to the most recent version? if you could list your other mods, i can investigate. i loaded up my save and all the seeds are working properly.

Seems like Factorissimo 3 by notnotmelon is changing something, I did some testing, had a large modlist 100+.

i went through the mod's files, seems like it clones everything for use in the buildings, increasing pressured required to a number larger than any base game pressure

I was also having this issues and I looked at some of the space age plants and notices a line for pressure so I made a working copy for jelly and yumako
at foliax- prototype-plants.lua

after line 1079 I added
foliax_jellystem.surface_conditions = { {property = "pressure", min = 1000, max = 1000}}

and after line 1058 add
foliax_yumako.surface_conditions = { {property = "pressure", min = 1000, max = 1000}}

this allows the plants to grow on foliax haven't noticed any issues yet sorry if im doing anything i shouldnt

no worries, i wanted to keep them growable on any surface but i can put a check in for factorissmo and then apply those changes.

I uploaded a fix with 0.2.7 that fixes this issue with mods creating surface conditions for foliax plants.
now there are defined surface conditions that will allow foliax plants to be built on all inner vanilla planets.

thanks for all the feedback!