I tried pollinating wild pink swamp rose mallow with my Hardy hibiscus Luna swirl pollen, it was late in the day so I'm sure it has more wild pollen genetics but I rubbed on so much fresh Hardy hibiscus pollen I'm sure at least a small percent mixed in. Seeds grew on the wild plant and I took them home.

Here is the wild one as pod parent http://www.ingebrita.net/tag/s...
Here is pollen donator The thread "What kind of Hardy Hibiscus is this?" in Plant ID forum

Will the seeds be fertile? If pod parent has smaller pink flowers with no eye and really tall plant, and pollen plant is white with pink blush and pink eye, large flowers but shorter plant, what would offspring most likely be?

Most of the time plants of the same genus, but a different species aren't genetically compatible. Another thing to consider is that I've learned that some species of hibiscus - like rosa sinensis, the stigma is only receptive for a short amount of time .. usually just a few hours and usually just before the flower starts releasing it's own pollen.

On the other hand - mutations happen!

Xeramtheum said:Most of the time plants of the same genus, but a different species aren't genetically compatible. Another thing to consider is that I've learned that some species of hibiscus - like rosa sinensis, the stigma is only receptive for a short amount of time .. usually just a few hours and usually just before the flower starts releasing it's own pollen.

On the other hand - mutations happen!

I was under the impression our domestic Hardy hibiscus originated from the wild hibiscus here, is that true? If it is than its just a case of mixing wild with domestic but it should work. Aren't they both Hibiscus moscheutos?

I'm going to grow a few seeds, if leaves look different than I know it has to be a hybrid as the wild plant has no variations here.

I may be wrong, but what I know as swamp mallow/rose mallow is H. coccineus and hardy hibiscus is H. moscheutos.

H. moscheutos, H. coccineus, H. grandiflorus, H. dasycalyx, and H. laevis are all part of Hibiscus section muechhusia and will cross.

Awesome! Didn't know that!