John, I had a pretty good year here. French Canadian is on her third flush with another to come if the temps hold. I think it is just that way some years, I had one like that a couple of years ago with no rhyme or reason. I figure they should be allowed the odd 'off' one. :) I say this for any and all zones.... improve your soil and plant them directly into the ground so you do not have to fertilize or water so much. A good root system will give you a good plant and good flowers. I fertilized mine for only the second( and last) time this year the last week in August. That is really my only 2 'secrets'.

Well the good news is is that you have a perfectly healthy shoot coming out. I think whatever damage that has been done is permanent, however if you give it some love and attention then that new shoot should grow fine.

Rb, you don't tell us because you don't want us to know or because you don't know? Just kidding (gggg). Re: dieback. It's my understanding that PG trained as a standard and left to its own for years (typical example would be old PGs growing at cemetaries) could become very unkemp looking by the reason I call 'visual dieback'. I have an unsubstantiated theory about this and would be glad to have everybody's opinion about it. As branches become thicker and thicker bark on them become thicker as well, leaf buds can't penetrate it and new growth occures only at the tips of the old long branches. Some adventurous buds that still will be able to grow thru the old bark spend most of their energy to do so and are not productive. Since new growth is not produced anymore neither from the base of the tree nor from the most of the lenghts of the old branches you'll see new growth and flowers only on outside part of the plant. That is creating how I call it a 'visual dieback' effect. In a PGs trained as a trees this effect could ruin the whole appearance while in a shrub form it doesn't play such role. Hope you remember this pictures I posted here a few times Obviously nobody pruned this, planted in 1978, shrub for at least last 20 years. I got a chance to see it very close. Upon close inspection the main trunk become a 6 or 7 trunks growing together sometimes splitting, but sometimes growing one into each other. Nevertheless, of all 15-16' width of it, only outer 4 to 5' has viable buds in a spring, but that is enough to cover all ugly insides and create the most stately and gorgeous PG I ever saw.

rina, ive seen and asked about at least two plants that failed- a melocactus and an eriosyce ? belonging to lynn, desert plants of avalon on YouTube, and might have read about other failures on other posts on other sites as well. If it were a columnar plant, or one that can undergo such a process, and survive, id recommend it right away. Spanish fly, maybe that would work on parodia leninghausii, or a semi columnar echinopsis, but im highly doubtful that youve managed to repeatedly do so with a "scopa" type parodia.