Here's a picture of my Nero 600M I received it about 2 years ago in a trade from a forum member and it's been in a pot ever since I recently thought  I would start it in the ground because of it's cold hardiness 

I planted it the ground 2 months ago and it took off like a weed and then I noticed a shoot coming off the side it has one leaf at the bottom like the original tree and all the new leaves coming out are totally different ??? Anyone else experience this??? Why would it start growing totally different leaves???

         

This is strange, I hope someone can explain, truly interesting. At first I thought it was root shoot of a grafted 600m, but then you pointed out the first leaf. Real strange.

It'll be really interesting to see if the fruit from this branch are identical to those from the rest of the shrub or not. 

It's kind of strange I don't understand it Here's a close up of the limb in question  

My guess is this is a juvenile leaf form of it and it is also expressed as being very vegetative.  Watch it and see if it changes if not this year, next year.

My tree is doing the exact same thing with the same exact shape as yours. I'm not worried about it. My negronne tree is also like that. I started 3 air layers on my nero 600m but I left the branch with the odd shape leaves for the simple fact that if I was to sell it or trade it the person getting it would question it, so I left that branch alone.

Ryan, is the branch with the unlobed leaves staying that way?  How long has it been that way?  I thought someone recently sold one on eBay with that leaf form.  Not sure if the sale stayed cheap or not because of it.  I'm wondering if the difference in leaf form is just a single gene that's turned off or something like that.

Greg, it's been that way for a little while now, I noticed a few weeks ago, I will keep a closer eye on it just to see if it reverts back to "normal". I am sure the fruit will be no different from branch to branch.

Sure looks like a genetic anomaly.  It will be interesting to see if new leaves this year on that branch continue the trend or revert, and what happens next year. 

Very cool IMO!

Thanks for sharing.

My tree has both of those leaf shapes as well and not on a sucker, just regular branches.. I think it is just rapid growth and the true leaf shape doesn't form. 

Makes sense to me.

My Brown Turkey has similar leaf changes...though not quite that extreme! My understanding is that it happens, nothing to fret about.

My col de dama noir that is in ground has the normal 5 lobed leaves at the start of the season but over the last few weeks it's been single lobed leaves just like the one in pot, I know they will go back to 5 lobed leaves later, maybe not this year but next year.

These leaves look exactly like my Petite Negra - same tree, two completely different leaf patterns.  Look it up in Jon's varieties database.

Oh well I was hoping it was going to manifest itself into a whole new fig species and it's nothing more than rapid growth "The Search Continues" 

from research i have done alot of fig trees can display very diff leaves until mature. i have several kinds that do that.

71GTO
This is the one I got from you It's growing beautifully Many of my trees the young leaves are not shaped like the adult leaves thats common I've just never seen one spit out one after the other like this one is, interesting 

Are you sure you didn't get that from 7Deuce? I think I only got my tree two years ago...

Thats possible I traded a Long D'aout for it I'll have to check my fig manifest to confirm it's origin 

That wasn't me for sure then... Probably 7Deuce. We seem to get mixed up a lot. 

I also have 2 CDDN cuttings that are growing both with different leafs. One has the 5 lobed leafs and the other has the single leaf pattern like yours does. Ive often questioned if they are both CDDN but I figure its just one of those things they just grow out of. It is strange indeed!

Blueboy, I believe Martin was the one who told me Baud's CdDN grows single lobes when young, later it puts out 5 lobes more regularly.  I was just surprised mine started with 5 lobed then  went to single, so to me that mean's it's being very strong and vegetative with not much chance for figs, it's trying but it's also too late for them.

Rob, are those from the CdDN cuttings I sent you?  Mine (from the same batch of cuttings) is growing single lobed leaves for now but I expect it will soon switch to the 5 lobes.  One thing I have noticed before with fig cuttings is that the leaves that come from the terminal bud of a cutting are often mature-looking, at least at first, whereas cuttings from internal sections of a branch without terminal buds will show the juvenile leaf pattern at the beginning and then later the more mature leaf pattern.

Dave, except for the odd branch, your Nero600m looks like mine which originated from Herman2. However, mine is growing much more like a bush than yours.  So far it is the bushiest variety I have.  It also is a rather slow grower even though the leaves look healthy with little or no fmv symptoms.  Has anyone else noticed this?

I took a look at my 600m and it has the normal finger like leaves but down at the bottom was one of the mulberry type unlobed leaves.  I agree with Steve that while my plant looks healthy it is not the fastest growing variety.