Troubleshooting
Puerto Rican Columnea problems — and how to fix them
Puerto Rican Columnea (Columnea tulae) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Sparse flowering in low light
This species flowers nearly year-round given sufficient light. If blooming stops or slows, move to a brighter (indirect) position. Supplemental grow-light in winter can maintain consistent flowering in lower-light interiors.
Root rot from overwatering
The mountain cloud-forest origin means this plant expects well-aerated, slightly drier roots than many lowland tropicals. Always use a fast-draining mix and water less than you think necessary, erring toward dryness rather than wetness.
Mealybugs in leaf axils
The hairy stems and leaf axils provide ideal cover for mealybugs. Inspect regularly, especially on new growth. Treat early infestations with rubbing alcohol on a cotton swab; severe infestations with insecticidal soap or neem oil spray.
Prevent puerto rican columnea problems before they start
Most puerto rican columnea issues are care-mismatch, not bad luck. Dial in the basics:
Puerto Rican Columnea problems — FAQ
Why is my puerto rican columnea sparse flowering in low light?
This species flowers nearly year-round given sufficient light. If blooming stops or slows, move to a brighter (indirect) position. Supplemental grow-light in winter can maintain consistent flowering in lower-light interiors.
Why is my puerto rican columnea root rot from overwatering?
The mountain cloud-forest origin means this plant expects well-aerated, slightly drier roots than many lowland tropicals. Always use a fast-draining mix and water less than you think necessary, erring toward dryness rather than wetness.
Why is my puerto rican columnea mealybugs in leaf axils?
The hairy stems and leaf axils provide ideal cover for mealybugs. Inspect regularly, especially on new growth. Treat early infestations with rubbing alcohol on a cotton swab; severe infestations with insecticidal soap or neem oil spray.