Why Is My Madagascar periwinkle Wilting?
Wilting Madagascar periwinkle can be caused by various factors. Let's diagnose and fix the problem.
Quick Assessment
Common Cause:
Wilting in Catharanthus roseus can result from water stress, either due to overwatering causing root rot or underwatering leading to dehydration, both of which impair nutrient uptake and plant stability.
Wilting Causes & Solutions
1. Underwatering (Most Common)
Symptoms:
- Soil is dry to touch
- Leaves feel crispy or papery
- Plant perks up after watering
- Pot feels light when lifted
Solution:
- Water thoroughly until drainage occurs
- For severely dry plants, bottom water for 30 minutes
- Establish regular watering schedule
- Remember: Madagascar periwinkle needs water every 7–10 days, allowing soil to dry slightly between waterings
2. Root Rot (From Overwatering)
Symptoms:
- Soil is wet but plant still wilts
- Yellowing lower leaves
- Musty smell from soil
- Black/mushy roots if checked
Solution:
- Stop watering immediately
- Remove from pot and inspect roots
- Cut away black/mushy roots
- Repot in fresh, well-draining soil
- Water only when top inch is dry
3. Heat Stress
Symptoms:
- Wilting during hottest part of day
- Recovery in evening/morning
- Leaf edges may brown
- Soil dries out quickly
Solution:
- Move to cooler location
- Provide shade during peak heat
- Increase watering frequency
- Mist leaves to cool plant
- Ideal temp for Madagascar periwinkle: Prefers 65–80°F (18–27°C); tolerates mild frosts but thrives in warm conditions.
4. Transplant Shock
Symptoms:
- Wilting after repotting
- Leaf drop
- Stunted growth
- Generally stressed appearance
Solution:
- Keep in stable environment
- Avoid fertilizing for 2-4 weeks
- Maintain consistent moisture
- Provide indirect light temporarily
- Be patient - recovery takes time
Emergency Wilting Care
If Your Madagascar periwinkle Is Severely Wilted:
- Check soil moisture - Is it bone dry or soaking wet?
- If dry: Water immediately and thoroughly
- If wet: Stop watering, check for root rot
- Move to shade temporarily to reduce stress
- Mist leaves to increase humidity
- Remove dead leaves but keep as many as possible
- Monitor closely for 24-48 hours
