TL;DR on first link:
- They're not hardy (trees need support, apples are thin skinned, and they ripen at different times)
- A university holds a patent on the tree (only $1 per tree, tho)
- They're not hardy (trees need support, apples are thin skinned, and they ripen at different times)
- A university holds a patent on the tree (only $1 per tree, tho)
A Pink Lady apple is actually a Cripps Pink, grown and picked in accordance with certain quality standards. Anyone can sell a Cripps Pink, but only licensees of Brandt's Fruit Trees Inc can sell a Pink Lady.
Anecdotally, UMN has one of the best agriculture research programs in the world, and it's entirely based around figuring out how to grow really anything when first frost is early September (Minnesota).