For example:
Divination
Telling the future via trees is known as dendromancy, and it includes all sorts of fun stuff. A fruit tree blossoming out of season (flowers with mature fruit) is a bad omen, but a heavy crop of apples or nuts means a good year for twins! If you put an even ash leaf (meaning it has the same number of leaflets on each side) in your pocket, you are sure to meet your future lover that day. I grew up with the tradition of twisting an apple stem while reciting the alphabet: whichever letter was spoken as the stem broke would be the initial of your future spouse.
A couple of farsighted prompts:
He loves me, he loves me not. The Oxford Dictionary of Superstitions lists a few ash-leaf lover rhymes: Even ash-leaf in my glove, the first I meet shall be my love (recorded 1831), Even ash or four-leaf clover, you’ll see your true love before the day’s over (1846), The even-ash is in my hand, the first I meet will be my man (1978). This, and/or the apple stem bit, could easily work for a soulmates-trope romance.
Something is off. On the other side of things, the apple blossoms and ripe fruit together thing is actually quite creepy, the sort of just-slightly-wrong eeriness that sets the tone of a horror story. What evil could be so powerful that the trees themselves give warning?
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