Plant tree in greenhouse?

No, I have trees in my greenhouse and they're growing fine.

It could be you didn't give them enough space?

Which wall height do you have? Trees need one of the taller wall heights to grow indoors.

Maybe too close to the wall, and I just used the regular wall height. Thank you! I will check it out tomorrow!

I added a second floor to a part of my green house, removed the upper floor and planted the trees under that. They were fine .

"simm621;c-16589743" wrote:
I added a second floor to a part of my green house, removed the upper floor and planted the trees under that. They were fine .

I think I'll try that!

"PinkPaws66;c-16589703" wrote:
Maybe too close to the wall, and I just used the regular wall height. Thank you! I will check it out tomorrow!

You have to have at least medium height walls, or second floor as suggested above, for trees to grow indoors.

I'm having a similar issue but with an apartment balcony in San Myshuno. I'm pretty sure you can grow trees in a planter box if you put it in the centre, but when I tried it said the plant "failed to germinate". Not sure what's wrong.

"iamsweetmystery;c-16694001" wrote:
I'm having a similar issue but with an apartment balcony in San Myshuno. I'm pretty sure you can grow trees in a planter box if you put it in the centre, but when I tried it said the plant "failed to germinate". Not sure what's wrong.

Is it out of season? I know sometimes this can happen

No, it was a Money Tree. They're always in season. It didn't even plant. It reverted to fruit form. It may be the balcony ceiling. I tried it on a taller balcony elsewhere and it was fine. You'd think at least medium height would be enough clearance, but it only seemed to work at an apartment with high walls.

"iamsweetmystery;c-16694336" wrote:
No, it was a Money Tree. They're always in season. It didn't even plant. It reverted to fruit form. It may be the balcony ceiling. I tried it on a taller balcony elsewhere and it was fine. You'd think at least medium height would be enough clearance, but it only seemed to work at an apartment with high walls.

I had they happen (seed unplants itself) with tree seeds if you have them in a room without enough height or if your planter is too small (they need the square planter). Also, if it is a cow plant seed it will need more space around it - especially in front.