Hibiscus grandiflorus again

First bloom of the year opened the night before last [Sept.24] on Hibiscus grandiflorus. Here's the second bloom opening last night (first picture) and still open this morning (second picture). I found a one stray late bloom on 'Old Yella' and another on 'Blue River II' and kept them in the refrigerator for a week or two to use them to pollinate grandiflorus. The third picture shows how 'Blue River II' has already matured most of its pods. 'Moy Grande' in the fourth picture has even already dropped all of its foliage and is going dormant. The last picture shows how well the new hybrid seedling has grown - it's the one from 'Blue River II' x grandiflorus, that I worked so hard to get last year. I'm considering trying to root a piece just as insurance in case something happens to this seedling.