Least Yellow-Sorrel
Oxalis exilis
Family: Oxalidaceae
Least Yellow-Sorrel (Oxalis exilis) is a upright houseplant from the Oxalidaceae family. Easy to care for and forgiving.
Complete Care Guide
Light Requirements
Best near south or west-facing windows with sheer curtains. Wants lots of light but not direct sun rays hitting leaves.
Watering
Water when the top 1-2 inches of soil feel dry. Consistent moisture is preferred but brief dry periods are tolerated.
Typical schedule: every 5 days (adjust for season and environment).
Humidity
Average household humidity (40-50%) is usually fine. Misting occasionally or grouping with other plants can help during dry winter months.
Temperature
Keep between 55–75°F (13–24°C). Avoid cold drafts, heating vents, and sudden temperature changes.
Size & Growth
Mature size: approximately 40 inches tall × 27 inches wide. Growth rate is fast. Habit: upright.
Difficulty Level: 2/5
Easy to moderate care. Forgiving of minor mistakes but benefits from consistent attention. Good for beginners ready for a small step up.
Quick Tips
- ✓Water approximately every 5 days
- ✓Prefers bright indirect light conditions
- ✓Humidity preference: medium
- ✓Keep between 55-75°F
Common Problems & Solutions
Brown leaf tips
Cause: Low humidity, inconsistent watering, or mineral buildup from tap water
Fix: Increase humidity with a pebble tray or humidifier. Use filtered water. Water on a consistent schedule.
Pale or leggy growth
Cause: Insufficient light — plant is stretching toward the nearest light source
Fix: Move to a brighter location. Rotate plant quarterly for even growth.
Drooping or wilting
Cause: Usually underwatering or sudden temperature change
Fix: Water thoroughly and ensure consistent moisture. Avoid cold drafts and heating vents.
Toxic to Pets
Least Yellow-Sorrel is toxic to cats and dogs. Ingestion may cause oral irritation, excessive drooling, vomiting, and difficulty swallowing. Keep this plant out of reach or consider a pet-safe alternative.
Browse pet-safe alternatives →Frequently Asked Questions
Is Least Yellow-Sorrel safe for cats and dogs?▼
No — Least Yellow-Sorrel is toxic to both cats and dogs. If ingested, it may cause oral irritation, drooling, vomiting, or difficulty swallowing. Keep out of reach of pets or choose a pet-safe alternative.
How often should I water Least Yellow-Sorrel?▼
Water approximately every 5 days, but always check the soil first. Water when the top 1-2 inches of soil feel dry. Consistent moisture is preferred but brief dry periods are tolerated. Adjust frequency based on season — less in winter, more in summer.
How much light does Least Yellow-Sorrel need?▼
Least Yellow-Sorrel prefers bright indirect conditions. Best near south or west-facing windows with sheer curtains. Wants lots of light but not direct sun rays hitting leaves.
How big does Least Yellow-Sorrel get?▼
Indoors, Least Yellow-Sorrel typically reaches about 40 inches (102 cm) tall with a spread of around 27 inches. Growth rate is fast. Size depends on pot size, light, and care.
Is Least Yellow-Sorrel good for beginners?▼
Yes! With a difficulty rating of 2/5, Least Yellow-Sorrel is very forgiving and suitable for beginners. It tolerates imperfect conditions and bounces back from mistakes.
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