Why aren't my columnar apples blooming?
I bought two varieties and planted them in the sunniest part of a shade plagued yard. One had a few blooms most years, and grew LOTS of short branches. The other no blooms in 8 years. I cut back most of the branches on the one this year and for the first time the other produced a few blooms near the top, but the former branchy one none! And the branchy one has sent out lots more branches. I've had 1 Apple in all this time!