Leggy seedlings are tall, weak, and floppy — usually caused by lack of light.
Why it happens:
- Seedlings stretch toward the nearest light source
- Overcrowding makes plants compete for light
- Too much heat can speed growth without strengthening stems
Prevention tips:
- Give seedlings bright, direct light or a grow light for 12–16 hours/day
- Thin crowded seedlings early
- Keep seedlings slightly cooler (18–22°C) to encourage sturdy stems
- Gently support seedlings if needed, but prevention is better than rescue
Grow smarter:
Strong seedlings = stronger adult plants. Good light, proper spacing, and moderate temperatures prevent leggy growth.