I just finished reading the third book, so I thought I'd put my notes on the three of them together.

Rosewater

• No few sentences of summary are going to do this book justice. It takes place in near future Nigeria. Some decades prior, complex alien life has landed (impacted) on earth; now there’s an alien dome in Nigeria, and a town has grown around it. The main character, Kaaro, is one of the “sensitives" that have become more prevalent - people who can access and interact with the thoughts of others. He’s not a great guy, initially using his abilities to steal, later getting pulled into a secret government organization. The story is told through three different timelines, which are creatively woven together. I really enjoyed the new ideas and interesting storytelling of this book. Will read the sequel.

The Rosewater Insurrection

• Book two of the Wormwood trilogy. Kaaro from the first book is an instrumental character, but Aminat is now central. The first woman who has become more alien plant than human has been identified, and Aminat is tasked with finding and studying her. Mayor Jack Jacques declares independence of the city, and there is war between humans, but Wormwood is also at war. As with the first book, there’s a lot going on, but this one is a little more linear. Very good and enjoyable.

The Rosewater Redemption

• This one has a grander scope and scale, with most of the characters from the prior books engaged in one thing or another. In the aftermath of the war of the prior book, the town is healing, but things may be much worse than they seem. I really enjoyed the whole series, and this final book creates a pretty satisfying conclusion. The new ideas and interesting storytelling that I commented on regarding the first book continue through the trilogy.

If all the titles have Rosewood in them, why is it the wormwood trilogy?

Wormwood is the name of something that factors heavily in the series

I enjoyed them, but felt at some point in Book 3 that I didn't care hugely about most of the characters. But then things somewhat redeemed themselves, although I think something with the climax and Wormwood, but can't quite recall what irked me specifically.
Mostly fun romp, however. Sadly did mean I recognised a necklacing in a news headline while browsing International news, however.

Which makes it easy for me to compare and contrast with the not Sci-Fi but actual grim crapsack fantasy world of Red Wolf, Black Leopard (probably racistly since they're both African inspired stories), where I stopped reading because of how grim and horrible the world and setting was, but the picked it up again a week later because it was so compelling and I wanted to find out what happened.
The horrors and atrocities get worse in Moon Witch, Spider King, and others more cerebral, which made it easier to keep reading.

I haven't read Black Leopard, Red Wolf; not sure I will. I've read some good things about it, but I've also read that those horrors and atrocities are pretty, well, horrible. That kind of stuff tends to stick with me. Not that I avoid any book where bad things happen, but if it's too graphic is going to bother me.

Aye, I don't consider myself especially sensitive to such things but a world where hunting and cannibalising babies is par for the course means there's a lot of horrific moments of very horrific things.
It is a book/series that continues to bother me/come to the front of my thoughts often enough. Albiet sometimes in fun or non-traumatic ways too.