Well, it is very handsome! I have no experience of P. patula, but I read it does grow tall. I would like it , but i am thorn...
Anyhow, I just called the n. 1 collector of rare conifers in Italy- who is based near Lucca, Tuscany. Namely he owns a nursery, but in truth he rarely sells his plants, and only to people that he thinks are seriously interested and able to take care of his beloved conifers - that he raises from seeds. We had an interesting conversation and he happens to have quite a few of those Mexican pines, so we agreed he will send me a list with his personal recommendations and then I will decide what I want to try.
I must say, we really found we completely share the same attitude towards planting trees. He was just about to explain that the plants he sends around are quite small, when I interrupted him and said that my ideal size would be maximum 1 meter, and the only thing I was interested in was that the plants have a good root system and a well proporrtioned structure - I don't ask for size.
He was very relieved at this
. I imagine that potential clients pester him with requests of well built, nicely sized trees.
I would never plant, on an exposed hillside, grown up trees that need staking and pampering. When Lady Walton planted the Pinus pinea that today tower on the garden, and give it a very welcome half shade (and depth, and proportion, in one world they structure our landscape) they were literally 30 cm tall - after the advice of Russell Page. Page told her that thus the pines would not be affected by the winter gales during their first years, and could develop a proper root system and send their roots down in the rock crevices, anchoring themselves and allowing for a sturdy future.