I am horticulturist and find. Myself stumped. A self-sewn black walnut is straddling my neighbors fenceline. Growing up it is an old tea rose in my yard. Its been there longer than the wanut and is healthy. Within 2 feet of the tree trunk is a 20 year old baptisia also healthy. On the other side a 15 year old Japanese lilac. Most strange is a healthy self-seeded tomato within 6-8 feet.
The walnut first fruited last year. I was careful to pick up all fallen fruit and !eaves.
What do you make of this?