This thread explains why this happens:

http://forums.gardenweb.com/forums/load/tomato/msg101852437749.html

What a cool picture !

This post was edited by Deeby on Sun, Feb 23, 14 at 18:05

I had a pickling cucumber do this to me last fall/early winter. I let the cuke get yellow on the vine before harvesting it and then I kept it inside for a couple of months to allow it to mature more. I must have left it too long because when I cut into it, it had some little sprouts inside. Not to this extent though.

Rodney

Edit: I should mention that I was saving seeds from the cucumber which is why I let it get mature.

This post was edited by theforgottenone1013 on Sun, Feb 23, 14 at 18:25

How awesome! What kind of store bought tomato was it?

theforgotten- did you try to save any of the little seedlings?

surya55- No, I didn't. I haven't got the space nor lighting to grow cucumbers inside.

Rodney

surya55 - that's the funniest part - the brand name of these tomatoes-on-the-vine is Magic Sun! You can see the sprouts trying to push through the skin here.