Haworthia Turning Red or Brownish
Haworthia (Haworthia fasciata)
Symptoms
- leaves developing a reddish, orange, or brownish tinge
- discoloration most pronounced on the side facing a window
- color change without softness or mushiness
- tinging that intensifies with continued sun exposure
Causes
Too much direct sun
Unlike sun-loving succulents such as echeveria, Haworthia evolved in filtered light beneath shrubs and rocks, and exposure to intense direct sun, especially through unfiltered glass in summer, triggers a stress-related reddish or brownish pigment response as the plant's leaves react to more light than they're adapted to handle well.
Sudden increase in light exposure
A plant recently moved to a noticeably brighter spot, even indirect light, without a gradual transition period can show some temporary reddish stress coloration as it adjusts, even if the new spot isn't excessively bright overall.
Temperature stress alongside bright light
A combination of high heat and strong light, such as a plant on a hot, sunny windowsill in summer, can compound the light stress response and deepen the reddish coloration beyond what light alone would cause.
How to Fix It
- 1
Move the plant to a spot with bright, indirect light rather than direct sun, particularly avoiding intense afternoon exposure through unfiltered glass.
- 2
If the plant was recently moved to brighter light, consider relocating it to a slightly less intense spot, or acclimate it gradually over several weeks if the current light level is only moderately too strong.
- 3
Check for excessive heat at the plant's location and move it away from hot, direct sun exposure through glass if found.
- 4
Understand that existing reddish coloration won't necessarily reverse, but new growth produced under corrected light should return to the plant's normal green.
- 5
Monitor new leaves for a return to typical coloration as confirmation the light adjustment worked.
Prevention
- Keep the plant a few feet back from unfiltered glass rather than right against it, so it gets brightness without the sun's full intensity
- Acclimate the plant gradually to brighter conditions rather than making abrupt changes
- Keep the plant away from hot, unfiltered afternoon sun through glass
Quick Summary
| Plant | Haworthia (Haworthia fasciata) |
|---|---|
| Category | Light |
| Likely causes | Too much direct sun, Sudden increase in light exposure, Temperature stress alongside bright light |
| Fix steps | 5 steps — see above |