Root barriers

[Than]

Not exactly about palms but I wasn't sure in which forum to post.

I am wondering if anyone has tried root barriers around trees, and whether they are worth it. What is your experience with trying to contain aggressive roots?

To give some context, I want to plant my Eucalyptus deglupta in the ground, provided it makes it through the winter. It's been doing fine so far, despite totally unprotected and in a pot, and has survived 28F with minor damage.

Now, the only spot available in the garden is about 20 feet from a retention wall downhill. My property is on a slope and the wall retains it. The wall is about 12 ft tall and quite sturdy. I don't want the roots of the tree to damage that very precious wall, even if that happens in years from now. I read that this species' root system can get very big and can damage walls and foundations even if sturdy and far.

[Phoenikakias]

Don't!

[Than]

11 hours ago, Phoenikakias said:

Don't!

Dang... such a beautiful and unique tree... 😭 

I can't think of anyone who might want to have it either that will also commit to watering it every day the first couple of summers.. 

Perhaps I should donate it to Diomedes gardens or the town of Kalamata if they want it. I bet some idiot will chop it down in few years in that scenario 

[Phoenikakias]

Not Diomedes, it may occur frost there.

[Than]

4 hours ago, Phoenikakias said:

Not Diomedes, it may occur frost there.

Yes, that's what I thought too. Snow too. It survived light frost here with only the youngest leaflets damaged (but not the growing tips!). Surprisingly hardy. I'll probably donate it to someone from the expat community in Messinia.. 🥲

[Phoenikakias]

1 hour ago, Than said:

Yes, that's what I thought too. Snow too. It survived light frost here with only the youngest leaflets damaged (but not the growing tips!). Surprisingly hardy. I'll probably donate it to someone from the expat community in Messinia.. 🥲

No locals?

[Than]

2 hours ago, Phoenikakias said:

No locals?

None that fulfills all requirements: large garden, in a warm place and committed to water this beast every day the first 2 summers.