The Portalpillar that spawns from Farmhouses only drops the pink potion to make the Portal Rope.
For the Stones you need to spawn them from Trees indeed.
Good luck redpenny!
Strange you can't store the Elms. Maybe they changed it.. I'm trying one myself now, just to check. (already have 60 in my inventory)
I thought I read at the beginning of the event S8 said the Apotranus Bloom would be storable post event.
But we still have a week, and if you only needed to buy 3 Portal Key's you're probably further ahead than anyone.
But thanks for the info! Does he look good? (I hoped he would be a weekly, considering all the trouble/timers we have to go though to get him)