TROUBLESHOOT

When your plant looks unhappy.

Six common problems, diagnosed in under a minute. Each page walks you through the likely causes, the fix, and when to give up and start a cutting.

Yellow leaves

The most common distress signal. Usually one of five things.

Thirst, shock, or root damage. Diagnose in under a minute.

Soft soil, yellow leaves, sour smell — here’s the recovery.

Humidity, water salts, or fertilizer burn. Fix the environment.

Spider mites, mealybugs, fungus gnats. ID and treat in order.

Season, root-bound, light, or nutrients. In that order.