Calathea Petersenii Care
High humidity is a must! A Calathea Petersenii plant gets brown leaf edges when the air is too dry. Humidity can be increased by placing your plant on a tray of wet pebbles (be sure the pot is on the pebbles and not in the water), setting a humidifier close by, or by grouping plants together to create a greenhouse effect.
Indirect sunlight is best suited for this species. Direct sun will damage the leaves and low light will slow growth, so a bit of balance is required.
Grow well in a light, porous, indoor potting soil that retains water but still drains quickly; an African Violet soil mixture is a good choice.
Your Calathea Petersenii enjoys the warmth, preferably between 65-85 degrees, so maintain indoor temperatures above 60 degrees. Avoid cold drafts and sudden temperature changes.
For best results, maintain a regular watering schedule and keep your Calathea Petersenii moist, but not wet or soggy. This is not a drought-tolerant plant, but it is relatively forgiving if you forget to water it from time to time. Extended periods of dryness can result in brown leaf tips or edges.
Feed only during the growing season from April - October with a diluted liquid feed once every 2 weeks.
Divide the parent plant at repotting time. This involves removing the plant from the pot and separating the stems for each new plant you wish to create. Water the plants after repotting, then give time between watering to prevent problems, now wait for new growth.