Q.Shrubs not susceptible to black walnut’s juglone for zone 6, long season of interest with flowers and or leaves and or berries
I have several black WALNUTS TREES IN MY YARD – THEY EMIT JUGLONE WHICH INHIBITS THE GROWTH OF SEVERAL (NOT ALL PLANTS). I AM TRYING TO ESTABLISH A SHRUB GARDEN AND I WOULD LIKE TO KNOW WHICH SHRUBS WILL GROW UNDER OR NEAR BLACK WALNUTS. WHICH SHRUBS ARE NOT SUSCEPTIBLE TO JUGLONE (FULL SUN/ PART SUN/ FULL SHADE). LOOKING FOR LONG SEASON(S) OF INTEREST WITH FLOWERS/FOLIAGE/BERRIES. SOIL IS NEUTRAL TO SLIGHTLY ALKALINE/ BUT I CAN ADJUST IT/ VERY SLIGHT INCLINE SO DRAINS PRETTY WELL/ SOME CLAY BUT I CAN EASILY AMEND HEAVILY WITH COMPOST / ZONE 6
Certified GKH Gardening Expert
Here is a good list from Penn State Extension:
Rose of Sharon has a long bloom period. Most of the others have a bloom period in spring or summer but not as long lasting as Rose of Sharon.