The experimental farm network has them for sale - apparently they'll be available March-April.

https://store.experimentalfarmnetwork.org/products/monkey-pu...

Those trees are awesome! Look almost alien but also something I could imagine the dinosaurs eating.

There are some massive examples in Seattle. They are hard to miss and very peculiar. I believe they are an import from the west coast of South America: https://en.m.wikipedia.org/wiki/Araucaria_araucana

3-4 decades to maturity, before you can harvest seeds, and it looks like you need male and female plants to cause seeding - I wonder if that can be gamed by grafting from mature trees, or artificial hormone sprays?

3-5 cm pine nuts sound awesome, though. 50m tall trees with giant cones and tasty nuts that can live a thousand years - a grove of these on a farm seems like a cool legacy investment, with little chance of becoming invasive or problematic.

Not trying to be facetious. but maybe look out for monkey puzzle trees in your area? If you're in the PNW, there a few around: https://www.monumentaltrees.com/en/usa-araucariaaraucana/

Apparently there are quite a few in the Portland area. Someone has been mapping them.

https://www.google.com/maps/d/viewer?mid=142zMsWAyuf9uYKGu7t...

I used to ride my bike around every late summer gathering them from people's lawns.

The trees have sexes, so one has to find the female trees.

There are quite a few in Portland, and all relatively the same age because they were given away at the lewis and Clark exposition of 1905 by a representative from Chile.

https://slabtowntours.com/2016/04/19/fun-fact-26-the-seedlin...

The monkey puzzle tree or araucaria can be found in southern Argentina and southern Chile. The nuts are locally known as "piñon" (singular) / "piñones" (plural).

It is not my favourite nut I must say, but the flavor is OK.

They're also common in southern Brazil and Australia. There's an entire region in Brazil known as "Araucaria forest".

https://en.wikipedia.org/wiki/Araucaria_moist_forests

I love their flavor, by the way.

Do keep in mind that these are very large trees and the leaves(needles) are very prickly to deal with. It takes a long time for them to mature and I have heard people in Seattle say that they never produce cones here.

There are several in our neighborhood, including our neighbor, but the homeowners obviously have no idea how large those trees will get based on where they are planted.

They're found virtually everywhere in Florida.

Might be hard to find considering they're endangered