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> If composed of two parts, there is often a scion—the upper or shoot portion of a plant—which is joined with a separate rootstock to produce, if successful, a healthy grafted plant.

And like that, I finally figured out why Toyota named their offshoot brand Scion.

> Both George Washington and Thomas Jefferson planted pecans at their plantations

At the time of Washington and Jefferson, they were known in English as Illinois nuts. And, living in Illinois, a few years ago I bought a selection of 2-3 year old seedlings of Illinois-native trees from the state department of natural resources to plant on my property. Pecan seedlings were included...

When people say that pecan trees grow slowly, they are understating reality. Mine are growing at maybe an inch a year. I get one or two small leaves at the top. No branches yet. I planted a plum tree near one at the exact same time and it has doubled in height.

Pecan trees grow best in hot climates. They can tolerate some freezes. In ideal conditions, they produce nuts in 4 years. I'm thinking in colder climates, greenhouse starting in larger containers for longer is basically required. My grandparents had 50' tall pecan trees in zone 8a that dropped about 8-10 lbs. of nuts per tree per year. I'd guess local critters walked off with a fraction small enough to not matter because cleaning up was a semi-nuisance but not as bad as cleaning up olive- and plum-like trees from sidewalks.
Article doesn't say the "trick" - it was a technique now known as inlay grafting.
Is this article missing opening context?

First line:

>Pecan nuts were already a dietary staple for Native Americans in various parts of what is now the United States before Antoine’s innovation established the basis for a commercial pecan industry

Who is "Antoine"? Is it a first name? A last name? It doesn't ever seem to say.

‘working by candlelight would have provided Antoine a focused, well-lit environment for the delicate dissection of two seedlings’

I think the author needs to try using a candle for light.

Bittersweet sad-interesting.

Grandparents had 6 paper shell "Pawnee" trees producing 50 lbs. / 22 kg of nuts per year with no special maintenance. USDA hardiness zone 8A and humid subtropical climate (Köppen Cfa). They fell on their own once a year.