Such a nice surprise to see your new photos, Kristen. Great colors for The Path and 5th Dimension. The variability of 5th Dimension and the "gun metal gray" that is the official description of the main petal color were the reasons that the garden editor for the Los Angeles Times chose 5th Dimension for the big color photo that illustrated his article on hibiscus hybrids a dozen years ago. It's been popular ever since although the bush does not hold up well to cold conditions and is best grown as a potted and protected plant. Once upon a time I had 100 big plants of it but am now down to 1 medium size 5th Dimension. It's on my list to graft this summer to make sure I don't lose it.
If the temperature or light has not changed much then the different flower colors you saw before and after going on vacations are most likely due to fertilizer changes. Amazing, eh?
Charlie
Thanks! The colors were spectacular!! I shot the 5th bloom in artificial light, sun, and shade. The shade one came out soooo extreme, although when you look closely at the bloom in person, it was quite like the photo represented. Loved working with that one!
Have you ever tried to root 5th? The plant that I have I got at a local exotic tropical garden store who told me that they don't graft any of their hibiscus. It is growing and producing blooms nicely for me. And if it is better suited for a pot, then Im in luck

If you loose it, I will send you a cutting

I am having a good time with hybridizing with it.
Just the other day I got some pollinated Cindy's Heart and The Path together. Crossing my fingers for that one.
PS, Do you know if Cindy got my email? I know you both are probably really busy. Just checking.