Rose of Sharon Bark Splitting: Research Needed

Problem

Vertical bark splits at base on 2-inch trunks → water entry → rot → section death over 1–2 years. No mechanical damage, wind, or pests evident.

Uncommon issue. Expert consultation initiated (Cornell Cooperative Extension). Contact aplantdoctor@hotmail.com for updates.

Shrubs: Rose of Sharon Sticky Residue: Aphids or Scale; Rose of Sharon Trunk Lichens and Bark Split: Not the Primary Problem; Rose of Sharon Bloom Failure: Thrips and Wet Soil Investigation; Overwintering Potted Rose of Sharon Seedlings; Eradicating Rose of Sharon Seedlings and Root Suckers; Newly Planted Knock Out Roses Wilting & Yellowing: Watering Fix; Pitcher Plant 'Indigestion': Brown Spots from Heavy Insect Capture Are Normal; Staking vs. Pruning Drooping Rose of Sharon: Spring Pruning for Stronger Stems; Reviving Stunted Rose of Sharon in Clay Soil; Eradicating Invasive Rose of Sharon Without Chemicals

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