Imadoki! Vol 4

Imadoki! by Yuu Watase. A Shojo manga rated Older Teen, published in English by Viz Media.

Tanpopo Yamazaki leaves the countryside for an elite Tokyo high school where status is everything, and her down-to-earth attitude makes her an instant outsider. Determined to start a gardening committee and make real friends, she finds an unlikely connection with Koki, a wealthy boy who acts nothing like the person she first met.