Dakota Guppy, who played Sophie in this movie and whose teacher (and her father's love interest) was played by Jodie Sweetin, was in the 2015 movie, "The Unauthorized Full House Story," in which she was . . . "Younger Jodie Sweetin."
The students plant seeds at the beginning, within maybe a few weeks a student points out that the flowers have bloomed. They were tulips, which come from a bulb not seeds.
When Paul, Gary Chalk, serenades his wife in the park, he plays the guitar left handedly but the guitar is strung in the normal fashion for a right handed person.