Light problems: stretching (etiolation) and sunburn

Succulents and cacti love light—but too little or too much can cause visible damage. Here’s how to spot stretching (etiolation) vs sunburn, and what to do.

Stretching (etiolation) — not enough light

Common signs:

• the plant grows tall/leggy
• wider gaps between leaves
• rosettes “open up” instead of staying compact What to do:

1. Move the plant to a brighter spot (near a bright window is ideal).
2. Increase light gradually over 7–14 days (don’t jump straight into harsh sun).
3. Rotate the plant weekly for even growth.

Good to know: stretched growth won’t “shrink back,” but new growth will become more compact once light improves.

Sunburn — too much direct sun too quickly

Common signs:

• pale, tan, brown, or white patches
• patches may feel dry/corky over time
• often appears after a sudden move into strong sun What to do:

1. Move the plant to bright, indirect light immediately.
2. Avoid watering changes as a “fix”—burn is light-related.
3. Let damaged areas heal; they usually won’t return to green, but the plant can recover.

How to prevent both problems

• Increase sun exposure gradually (especially in spring/summer).
• Outdoors: start with morning sun, add time slowly.
• Indoors: brightest window you have, with gradual adjustment.

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