Hello again! I wanted to get back to you all about a month after my original post with an update and another question about this plant. I do believe it is a hibiscus although it has never flowered in my care (5 years). As you may recall and see from the photos I submitted in February, it seem to be on its way out. I was distraught about this since it had been my mother's and in a way some of you may understand, I felt like I was letting her down by letting it die - and perhaps even causing its demise. So I set to work, following the suggestions given by you kind and knowledgeable folks. Here's what I did. I removed it from its pot and found a relatively small tangle of roots in rather wet soil. Now this was the same pot and soil it had been in at my mother's where it flourished. I was surprised that the root mass was not larger - it did not fill the pot, and I was surprised that it was so wet because there was plenty of drainage. Nonetheless, I removed most of the soil and repotted it in fresh, dry potting mix. It's actually a succulent mix because that's what i had. I hoped it would allow good drainage to keep the roots happy as I had been told that they don't like to be in cold wet soil. I also drilled extra holes in the pot and raised it up out of the saucer using several chopsticks so it would never sit in water. I gave it a small amount of water just to moisten the new surface but hoped the dry soil around the roots would wick away excess moisture. I also moved it closer to a heat source, right in front of a SW facing window. Of course I checked on it daily and after about a week stuck my finger in to see if the soil was still damp underneath. It was. So using a chopstick I poked around trying to gently churn it up a little. I figured it couldn't get any worse than it was. I was willing to experiment. Now, almost a month later, here are some photos. You'll see most of the leaves are completely dried up and many have fallen off. But there is one branch that still seems viable and I do believe I've even seen some new growth. The other day I noticed a small black flying insect flitting on the soil surface. I got out my insecticidal soap and sprayed the leaves and the soil surface. I don't know if it was a fruit fly from my compost bucket or something else but the plant hasn't gotten any worse. Now I am wondering if I should fertilize/feed it and if so, with what. Again, all opinions welcome - you guys really helped me out! Thanks.

Do you leave it outdoors? The bloom looks like an althea (rose of Sharon) of some type. I can't see the leaves or stems well enough for better ID. Regardless, therw are so many white hibiscuses, it will be hard to definitively ID it.

I'm pretty sure that's Cosmic Dancer, actually. It's a widely available, very popular hybrid that's been around a while. Problem is that wholesale growers who are NOT the hybridizer who produce for retail have a very bad habit of renaming the cultivars to try and make it sound like they have some unique hybrids of their own. It's not a particularly honest practice and causes a lot of confusion. Google up photos of hibiscus 'Cosmic Dancer' and you'll see it is spot on for it. I wouldn't mind to have that one myself eventually.

This may come too late for your project, but neither of the blues in your photos match Farrow & Ball colors, at least on my screen. For reference, I have a full color collection card to which I compared. Blue Ground for the first and Cook's Blue for the second are probably the closest but are not matches. If you are sure these are Farrow & Ball colors, then you would need to check for archived colors unless the online images are somehow color distorted.