black walnut and giant hyssop compatibility

Is agastache foeniculum sensitive to juglone

I grow red currant and jostaberries under my walnuts.  As weeds i have sorrel, stinging-nettle and cow parsnip ( and grasses ) growing under the canopy.
I have not found plants of the lamiaceae family under the trees. I presume the canopy shades too much for the sun loving lamiaceae. I have dead nettle growing between trees but not under.
But i will try the Agastache.

Thank you!