Our high-density apple experiment
has been 80% successful. The technique has allowed me to grow lots of
varieties in a small space, tricking them into blooming at a young age.
The only problem? Due to our frost-pocket location, those blooms get
nipped most springs, so we don't get any fruit.
So I'm veering off in another direction with my next round of experiments. Espaliered trees
are trained to be two-dimensional and relatively short, so it's much
more feasible to cover them during late-spring frosts. The only question
is --- is MM111 rootstock too vigorous for espaliering? I went ahead and bent last year's graftees down
along wires and am prepared to deal with lots of watersprouts if they
pop up. Perhaps keeping fertilization to a minimum and summer pruning
relentlessly will do the trick.