This looks a lot like my Rose of Sharon called 'Diane' I have two and they have grown a lot in three years. You have better pictures though

I actually looked at your 'Diane' when I was trying to figure out where to place this one. I thought it was a lovely photo.

Mine is descended from an older and much too large a plant to be Diane. It must be one of the long-lost heirloom types because I can find no real info on it. I did page through a long list of Hibiscus syriacus cultivars, and found one that's probably it, but I can't corroborate the information. So....it's probably going to remain "Great-Gram's White".

My friend gave me a H. 'Diane'. Turned out to be something different. Diane is sterile and can't produce seed. This one does and a lot of them. Looks all the same as above.

Well thank you and I think you did a real good job placing it, I almost thought it was mine.
I bought these Rose of Sharon's from 'Nature Hills' when I first bought this house and they were nothing but two sticks. I will see if I can find a decent picture of the whole bush.

Hi, Stush.

Yeah, mine also produces quite well; I'm glad they're in a spot that gets regular mowing. It's easy to have just as many as wanted that way. Funny thing is, I've never seen one come up elsewhere on the property; I guess the birds don't care for their seeds.

Don't know for sure so I guess I'm spreading a rumor. H. Diana is a hybrid of Hibiscus syriacus X Hibiscus rosa-sinensis. Thus why it is sterile and can't produce seed. However I don't believe it.
Since I don't own a 'Diana' I can't check out the flower to see what parts are missing for reproduction.
It is reported to have a larger flower than regular rose of sharon. Can I have help on this Susan?
Check out your flowers and size this summer for us.

Thanks Stush, My problem is that I've never owned any other Rose of Sharon. The flowers look pretty big to me especially in spring, It always has that 'wow' factor. I was thinking you were right about the seeds because, I've never seen any and also I have other shrubs that do not produce seed and they flower profusely. That is the case with Diane, I could not believe all the buds, they just keep coming and coming. I love this shrub.

Susan,
For that reason I own the double flowered kinds. They use all there energy for flower production and self clean themselves. Now that I am trying to hybird the hardy to the tropocal I need a seed pod parent. I want to try to get a yellow flowered hardy. As you know there is none. I am in contact with another who is trying and so far got some hybrids but not yellow yet. He may be one step away.

Sounds good Stush! Love yellow . Sorry I had trouble with my Internet and was off line for a few days. Good luck with the Yellow hybrid, you and your friend too.
susan