yellow leaves on Calathea Corona
Quick answer
If your Calathea Corona has yellow leaves, the most likely cause is: Yellowing leaves on a calathea corona can come from two clearly named causes in the source material: overwatering (saturated roots leading to yellowing leaves), or an accidental treatment with neem oil, which the book warns does not agree with calatheas and will cause the leaves to turn yellow and fall off.
Start here:
- 1. Stop watering on a schedule and only water the calathea corona once a week, checking that the top 2" (5cm) of soil is dry first, and always let excess water drain out of the pot drainage holes so the plant is never sitting in water.
- 2. Switch pest treatments away from neem oil; if leaves have yellowed after a neem spray, rinse the foliage with a gentle stream of water and treat future infestations with the castile soap and water mixture recommended for the genus.
Why Calathea Corona gets yellow leaves
calathea corona
Yellowing leaves on a calathea corona can come from two clearly named causes in the source material: overwatering (saturated roots leading to yellowing leaves), or an accidental treatment with neem oil, which the book warns does not agree with calatheas and will cause the leaves to turn yellow and fall off.
How to reverse yellow leaves on Calathea Corona
- 1
Stop watering on a schedule and only water the calathea corona once a week, checking that the top 2" (5cm) of soil is dry first, and always let excess water drain out of the pot drainage holes so the plant is never sitting in water.
- 2
Switch pest treatments away from neem oil; if leaves have yellowed after a neem spray, rinse the foliage with a gentle stream of water and treat future infestations with the castile soap and water mixture recommended for the genus.
Keep yellow leaves off this Calathea Corona
Use only distilled water or rainwater on a calathea corona, keep it in bright indirect light away from drafts, and never let the pot sit in standing water so the roots stay aerated and the foliage keeps its patterned color.