The power to utilize magic involving plants. Variation of Plant Manipulation. Form of Magic.
The user is able use a form of magic that allows them to cast magical spells dealing with plants.
Grassy Wizard (Adventure Time)
Arbutus (Aladdin: the Animated Series) was a powerful sorcerer and mysterious entity that had the power to create plants on a whim, treating them as his "children".
After blossoming to his full form, Swampfire (Ben 10: Omniverse) gained the ability to manipulate magical plant life as well as regular and alien plants.
Cosmos (Fairy Tail) using Flytrap Shot.
Droy (Fairy Tail) using Grass Nuckle.
Jäger (Fairy Tail) using Plant Magic.
Like all witches Lotte Yanson (Little Witch Academia) can use magic on plants.
Zagan (Magi the Labyrinth of Magic) the Djinn of Loyalty and Purity can create and control plant life with life magic.
Gloriosa Daisy/Geaea Everfree temporary(My Little Pony Equestria Girls: Legend of Everfree.)
Rose Quartz (Steven Universe) had the power to create sentient plant life to fight for her, a power she passed on to her son Steven.
Steven Universe (Steven Universe) inherited the power to create sentient plant-life from his mother, having accidentally created an army of "Watermelon Stevens" because of it.