Not enough light
A Dragon Tree that stretches toward the window with a thin, pale crown is almost always under-lit.
Diagnosis
Not enough light
What's happening
Dracaena marginata tolerates lower light but doesn't thrive in it. In dim conditions the canes stretch and lean toward the brightest window, new leaves come in smaller and paler, and the colorful red leaf margins fade. Growth slows and the plant looks sparse and weak instead of full and upright.
How to fix it
Move the plant to a brighter spot with plenty of bright, indirect light — a few feet back from an east or west window works well, with harsh midday sun filtered by a sheer curtain. If your space is genuinely dim, a full-spectrum grow light makes a real difference and helps the red margins return. Rotate the pot a quarter turn each week so the plant grows straight instead of leaning.
What fixes it
- A full-spectrum LED grow light — A full-spectrum grow light restores the light a Dragon Tree needs to grow upright and keep its red leaf margins.
If that doesn't fix it
This is general guidance based on common symptoms; individual plants vary.
Read the full Dragon Tree care guide →
Reviewed June 2026 · how we check this