Mature Sweet Chestnut Sparse Yellow Leaves: Root/Soil Issue in Clay

Large sweet chestnut with reduced leaf growth, yellow/sparse leaves, some browning. Neighbor tree healthy. Clay soil waterlogs but neighbor fine.

Possible Causes

• Root/soil issue: past drought, waterlogging, poor fertility, extreme weather.
• Clay holds water but re-wets poorly after drying—avoid moisture swings.
• Check for bark/trunk/root injury.

Next Steps

• Soil test for nutrients (nursery/Extension).
• Certified arborist on-site assessment.
• No obvious pests/cankers seen.

Diagnosis needs in-person evaluation.