Why Is My Succulent Turning Red? 7 Possible Reasons Explained
If you’ve noticed your succulent turning red, you might be wondering what’s going on. Succulents are known for their plump, green leaves, so a color change can feel like a mystery. Don’t worry! There are clear reasons why this happens, and I’ll walk you through them in a way that’s easy to understand. Whether you’re new to plant care or a seasoned succulent parent, this listicle will explain seven common causes of red leaves and what you can do about them.
1. Too Much Sunlight
Succulents love light, but too much direct sunlight can cause their leaves to turn red. This happens because intense sun triggers the plant to produce pigments called anthocyanins, which act like a natural sunscreen to protect the leaves. If your succulent is near a sunny window or outside in full sun, it might be getting more light than it prefers.
What to do: Check the light needs for your specific succulent. For example, Echeveria varieties can handle bright light, but others, like Haworthia, prefer indirect light. Move your plant to a spot with filtered sunlight or use a sheer curtain to soften the rays. If it’s outdoors, consider partial shade during the hottest parts of the day.
2. Not Enough Water
Underwatering can stress your succulent, causing its leaves to turn red. When a succulent doesn’t get enough water, it conserves resources by producing those same anthocyanin pigments. You might also notice shriveled or wrinkled leaves alongside the color change.
What to do: Water your succulent when the soil feels completely dry, usually every 1-2 weeks, depending on your climate. Use the “soak and dry” method: water thoroughly until it drains out the pot’s bottom, then wait until the soil dries out before watering again. Make sure your pot has drainage holes to avoid soggy roots.
3. Cold Temperatures
Some succulents turn red when exposed to cooler temperatures, especially in fall or winter. This is a natural response for certain varieties, like Sedum or Sempervivum, which develop vibrant red hues as a way to cope with chilly conditions. It’s often harmless and can even make your plant look more striking.
What to do: If your succulent is outdoors, check its cold hardiness zone (most succulents thrive in USDA zones 9-11). If temperatures drop below 40°F (4°C), bring it indoors or cover it to protect it from frost. Indoors, keep it away from drafty windows or heaters that could cause temperature swings.
4. Nutrient Deficiency
A lack of nutrients, especially nitrogen or phosphorus, can cause your succulent’s leaves to redden. When the plant doesn’t have enough nutrients to support healthy growth, it may redirect energy to protect itself, resulting in a color change. This is more common in succulents that haven’t been repotted or fertilized in a long time.
What to do: Use a diluted, balanced fertilizer (like 10-10-10) designed for cacti and succulents. Fertilize sparingly—once every 1-2 months during the growing season (spring and summer). Avoid over-fertilizing, as this can burn the roots and cause other issues.
5. Natural Pigmentation
Some succulents are bred to have red or reddish leaves, especially certain hybrids like Echeveria ‘Black Prince’ or Graptopetalum ‘Superbum’. If your succulent is turning red but looks healthy—no wilting, soft spots, or dropping leaves—it might just be showing its natural colors, especially under bright light.
What to do: Research your succulent’s species to confirm its natural traits. If it’s a variety that naturally turns red, enjoy the vibrant display! Just ensure it’s getting proper care to maintain its health.
6. Stress from Transplanting or Repotting
Repotting or moving your succulent to a new environment can stress it out, leading to red leaves. This stress response is temporary as the plant adjusts to new soil, a different pot, or a change in light and humidity.
What to do: Give your succulent time to settle in—usually a few weeks. Avoid watering for a few days after repotting to let the roots recover. Use a well-draining succulent soil mix (like a blend of potting soil, perlite, and sand) to help it thrive. Keep light and temperature conditions stable during this time.
7. Pests or Disease
Though less common, pests like spider mites or fungal infections can stress your succulent and cause red leaves. Spider mites, for example, suck sap from the leaves, leading to discoloration. Fungal issues might show up as red or brown spots, especially if the plant is overwatered.
What to do: Inspect your succulent closely for tiny webs, spots, or sticky residue. If you spot pests, isolate the plant and treat it with neem oil or insecticidal soap, following the product’s instructions. For fungal issues, reduce watering and improve air circulation. If the damage is severe, remove affected leaves with clean scissors.