A mature Red Robin (Photinia × fraseri) moved into a winter-waterlogged area likely suffered root rot during dormancy. Symptoms—wilting, browning leaves—appeared in spring when the plant attempted new growth. Raising the bed and adding compost was a good effort, but if no new growth emerges by mid-May, the shrub is unlikely to recover.
For areas that flood annually, consider bog-tolerant perennials (e.g., iris, lobelia, turtlehead) instead of shrubs that demand well-drained soil.
Red Tip Photinia Base Fungus: Root Rot, Replace
Euonymus Scale on Golden Euonymus: Soil-Applied Systemic Control
Oak Borer Infestation: Assessment and Neighboring Tree Protection
Red Oak Transplant Shock in Texas Heat
Diagnosing Sudden Browning in Mature Evergreen Shrubs
Overwintering Red Banana (Ensete) in the Pacific Northwest
Winter Koi Deaths in Virginia: Temperature Swings and Oxygen
Kramer's Red Winter Heath – Magenta-Red Winter Blooms
Kramer's Red Winter Heath: Magenta-Red Flowers Through Early Spring on Dense Groundcover
Weigela 'Red Prince': Rich Red Blooms on a Compact Mounding Shrub
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