Vine manipulation because it would be good for whipping.

Vine Manipulation. There’s a lot of potential to it. Though, with flower manipulation you could create things like poppies. For those that don’t know, poppies are what make opium and is then made into heroin. It is also used for sleeping medication I think? Mostly for drugs. But you know.

Flower

Flowers to make flowers which can create organicly specific molecules

Probably vine?

Flower manipulation, since healing plants is an application, and I might be able to create some body or mind enhancing flower like the heart shaped herb, I could also create carnivorous flowers, poisonous, paralytic, and pheromone(hehe boi) generating ones, create and sell flowers with natural beautifying effects(or is that too much?) besides, flowers are pretty so why not!

Tree manipulation

I’m going with flower manipulation 🥰😊

I'd say tree manipulation because I feel like trees encompass both flowers and vines

I mean, they're all in some way a plant, something I'd call a tree at times (might be just me though)

Trees for me, the most powerful and versatile of these power. It can give shade, give food like apples, is tough, good to run.