Walnut Toxicity: Redbud Death, Beech Survival List

Mature walnuts in garden. 2-year redbud under canopy: no bloom/leaves. Asks if walnuts cause it. Also asks about tricolor beech survival.

Juglone Toxicity Confirmed

Walnut roots release juglone. Sensitive plants yellow, wilt, die under canopy. Redbud is listed as TOLERANT—but "under canopy" = highest concentration. May still succumb.

Tolerant Plants for Under Walnuts (Partial)

• Trees: redbud, Japanese maple, most maples, oak, hawthorn, red cedar, catalpa, pawpaw, persimmon, sycamore.
• Shrubs: forsythia, rose of Sharon, viburnum, euonymus, juniper, arborvitae.
• Perennials: hosta, daylily, peony, phlox, iris, ferns, astilbe, hellebore, sedum.

Tricolor Beech

Beech (Fagus) not on tolerant lists. High risk under walnut canopy.

Action

Move redbud if possible. Choose tolerant species for walnut shade.