Crispy Leaf Edges
When leaf margins become brown and crispy while the center stays green, it typically indicates a moisture or environmental issue.
考えられる原因
Low Humidity
Why: Tropical plants lose moisture from leaf edges first when surrounding air is too dry.
Signs to check: Edges are dry and papery, problem worsens in winter with indoor heating.
Underwatering
Why: When the plant does not receive enough water, leaf edges — the farthest points from the stem — dry out first.
Signs to check: Soil is frequently dry, crispy edges progress inward over time, plant may also wilt.
Fertilizer Burn
Why: Excess fertilizer salts accumulate in the soil and damage leaf margins.
Signs to check: White crust on soil surface, crispy edges appeared after fertilizing, tips and edges brown together.
Root Restriction
Why: A severely root-bound plant cannot deliver enough water to leaf margins.
Signs to check: Roots visible at surface or drainage holes, crispy edges despite regular watering.
確認ポイント
- 1Check soil moisture and watering consistency
- 2Assess room humidity levels
- 3Look for salt buildup on the soil surface
- 4Check if the plant is root-bound
- 5Review recent fertilizer use
対処法
- Increase humidity with a humidifier or pebble tray
- Water more consistently, not letting soil dry out completely
- Flush soil with plenty of water to remove excess fertilizer salts
- Repot if the plant is severely root-bound
専門家に相談するタイミング
- Crispy edges are progressing rapidly toward the center of leaves
- Multiple leaves are entirely crispy and brown
- Plant is showing root rot symptoms alongside crispy edges
ポイント
Crispy leaf edges are the plant telling you it needs more moisture — either in the soil, the air, or both. Check for fertilizer salt buildup as well.
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情報源: RHS, NC State 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。