Tomatoes following Jerusalem artichokes
I have a "kill zone" where I am removing an unwanted invasion of Jerusalem artichokes that's been there at least 15 years.
I planted Mule Team tomatoes in that and adjoining area, and another in my neighbor's yard for her. My tomatoes in area where Helianthus tuberosum has grown are yellow and sickly and not growing. My plants farthest from the concentration of Jerusalem artichokes and the one in my neighbor's yard are fine -- green and growing!!
I know that Helianthus annuum exudes a substance from its roots that retards / prevents seedling sunflowers and possibly other species from growing in its root zones.
Does this perchance apply to Jerusalem artichokes?? I'd appreciate an expert's opinion on this?
greentongue - Arkansas Ozarks