Witch of Wild Things by Raquel Vasquez Gilliland

Legend goes that long ago a Flores woman offended the old gods, and their family was cursed as a result. Now, every woman born to the family has a touch of magic.
 
Sage Flores has been running from her family—and their “gifts”—ever since her younger sister Sky died. Eight years later, Sage reluctantly returns to her hometown. Like slipping into an old, comforting sweater, Sage takes back her job at Cranberry Rose Company and uses her ability to communicate with plants to discover unusual heritage specimens in the surrounding lands.

What should be a simple task is complicated by her partner in botany sleuthing: Tennessee Reyes. He broke her heart in high school, and she never fully recovered. Working together is reminding her of all their past tender, genuine moments—and new feelings for this mature sexy man are starting to take root in her heart.

With rare plants to find, a dead sister who keeps bringing her coffee, and another sister whose anger fills the sky with lightning, Sage doesn’t have time for romance. But being with Tenn is like standing in the middle of a field on the cusp of a summer thunderstorm—supercharged and inevitable.