Seedlings Growing Tall and Weak (Leggy Seedlings)

Seedlings sometimes grow tall and thin instead of strong and sturdy. This is usually caused by not enough light or warm indoor conditions.

Improving light usually fixes the problem.

Not enough light

Seedlings stretch toward light when conditions are too dim.

This causes thin stems.

Placing seedlings in brighter locations usually helps.

Warm indoor growing

Warm rooms can cause fast, weak growth.

Cooler, bright conditions usually produce stronger seedlings.

Supporting seedlings

Gentle airflow and steady light often help seedlings grow stronger.

You can read more in why seedlings die after sprouting.