These trees were used in many scenes and in many different ways in the movie, but, we only had about 35 of them, so, we had to keep re-dressing them for different scenes. That meant either removing, or putting on new leaves, apples and blossoms, not to mention constantly repairing branches, and modifying the trees to make them larger or smaller.
And here's a shot of them in them blossoming in the spring time. The blossoms were made out of popcorn.
Here they are in the "Other World," all leafy and covered in apples.