悟る · diagnose & fix
Cannabis Wind Burn
Environmental stress · also: fan too strong, leaves clawing from fan, wind burn cannabis
Leaves in the direct blast of a fan curl, claw, and dry out — over-exposure to constant airflow, not a nutrient problem.
Not sure it's wind burn?
Snap a photo and get a free read — no signup. Satoru weighs the visual against the conditions that cause look-alikes, so you treat the real problem.
What it looks like
Leaves directly in a fan's path curl under (clawing), look leathery, and may show a dark or bronzed cast — while leaves out of the airflow look fine. The tell is location: the damage maps exactly to where the wind hits, not to leaf age or plant position.
Symptoms
- Clawing/curling leaves only where the fan blows
- Leathery, dry, sometimes bronzed leaves
- Unaffected leaves elsewhere on the same plant
- Worse the closer/stronger the airflow
Causes
- A fan blowing directly and constantly on the canopy
- Airflow too strong for a small/young plant
- Low humidity compounding the drying effect
How to fix it
- 1Point the fan to move air ACROSS/around the canopy, not straight at it — you want the leaves to flutter, not thrash
- 2Increase distance or drop the fan speed
- 3Damaged leaves won't un-curl; new growth out of the blast will be fine
Prevention
- Aim for gentle, indirect air movement (leaves lightly rustling)
- Ease airflow for seedlings/young plants
- Keep humidity in range so airflow isn't over-drying
悟る · how satoru tells it apart
Wind-burn claw looks just like a nitrogen-toxicity claw or heat stress. Satoru weighs the damage pattern against your setup so you move a fan instead of flushing a plant that's fed just fine.
Commonly confused with: Nitrogen Toxicity, Heat Stress, Underwatering.
Not sure it's wind burn?
Snap a photo and get a free read — no signup. Satoru weighs the visual against the conditions that cause look-alikes, so you treat the real problem.
More plant problems
Educational reference for cultivation troubleshooting. Symptoms overlap — when in doubt, match against your own conditions. Satoru fuses your photo with your logged environment for a grounded read.