Sunburn / Leaf Scorch
Sunburn occurs when a plant receives more direct light than it can handle, causing bleached or scorched patches on leaves.
考えられる原因
Sudden Exposure to Direct Sun
Why: Plants accustomed to indirect light can burn when suddenly moved into direct sunlight.
Signs to check: White or bleached patches on sun-facing leaves, damage appears within days of moving.
Intense Afternoon Sun
Why: Afternoon sun is much stronger than morning sun and can scorch even sun-tolerant plants.
Signs to check: Brown, crispy patches on the side facing the window, often west-facing exposure.
Magnification Through Glass
Why: Water droplets or certain window glass types can focus light and intensify burning.
Signs to check: Circular burn marks on leaves, damage on leaves closest to the window.
確認ポイント
- 1Note where the damage appears on the plant relative to the light source
- 2Check if the plant was recently moved to a brighter spot
- 3Identify the direction the window faces and time of sun exposure
- 4Look for water droplets on leaves that could magnify light
対処法
- Move the plant away from direct sunlight or add a sheer curtain
- Gradually acclimate plants to brighter conditions over 1-2 weeks
- Remove severely scorched leaves to redirect energy
- Avoid misting leaves in direct sunlight
- Water at the base rather than overhead during sunny periods
専門家に相談するタイミング
- Large portions of the plant are bleached or crispy
- Plant is losing most of its leaves from scorch damage
ポイント
Sunburn damage is permanent on affected leaves but the plant will recover once light is adjusted. Always acclimate gradually to brighter conditions.
アプリで回復を追跡
進捗を記録し、リマインダーを設定し、AI による診断を受けましょう。
情報源: RHS, University of Florida IFAS Extension. 教育目的で公開されている園芸資料をまとめたコンテンツです。情報源の組織は透明性のためにのみ記載されており、推薦を意味するものではありません。