Primcane shoots growing on Primacames

Not sure what is happening but I didn't think Primacanes would be growing on Primacanes.  I'm growing Naches blackberries.  I hope the attached pics show what I noticed.  I'm only going by the leaves that have 5 not 3 leaves.  Make sense???

Hi Gene, welcome to Permies! You are helping me learn right now. I knew about the two year life cycle of blackberry canes. But I didn't know the difference between primocanes and floricanes. Nor did I know that primocanes have leaflets of five while floricanes have leaflets of three. With that said, it is natural for primocanes to grow branches. If I understand correctly, primocanes and floricanes both grow from the root crown. They will branch out as they grow.

I was under the impression that Floricans stemmed from the Primocanes especially after you pinch off the end of the primocanes

The canes only last for two years.
The very 1st year that the canes/shoot grow out of the grounds it is called a primocane
after that 1st year cane overwinters and then leaves out the 2nd year it is now called a Floricane,
The floricane will not survive the next winter and leave out for a 3rd year.

Some plants are called Floricane or summer bearing. With these plants the 1st year canes aka primocane don't bear any fruits.
Other are called Everbearing or Fall bearing, with these plants they 1st year shoot bear in the fall, while the floricanes (now in their 2nd year and final year of life) will bear in the summer.

Thanks, I am just confused as to why after snipping off the tip of a new Primacane the shoots are coming out with Primacane leaflets.

S Bengi wrote:The canes only last for two years.
The very 1st year that the canes/shoot grow out of the grounds it is called a primocane
after that 1st year cane overwinters and then leaves out the 2nd year it is now called a Floricane,
The floricane will not survive the next winter and leave out for a 3rd year.

Some plants are called Floricane or summer bearing. With these plants the 1st year canes aka primocane don't bear any fruits.
Other are called Everbearing or Fall bearing, with these plants they 1st year shoot bear in the fall, while the floricanes (now in their 2nd year and final year of life) will bear in the summer.

I have notice that if I find any plant and cut out the growing tip, it makes shoots from the closest 5 or so internodes. I have made the mistake of pruning an apple tree in the summer and had so much watersprouts.

So it makes sense that if you cut out the tip it will start growing from the closets internodes.