Question
1.) I recd an offshoot African violet ago and it has since had its own offshoot, which I repotted.  Both plants are healthy and growing but have never bloomed.  The original plant I got offshoot from 'does bloom.  They are planted in right soil, receive right fertilizer. Why don't these bloom?  My other African violets bloom more than once a year.

2.)I bought this plant (pix sent separately)on sale.  It was in bad shape, has improved but this winter leaves are turning yellow.  I know it's a tropical rainforest plant but not its name or what its needs are (soil, minerals, fertilizer, water sched, environment, etc.)  Any help greatly appreciated.

Answer
Hi Jan,

African violets must be quite rootbound before they will bloom. Your offshoots are probably still putting energy into filling the pots with roots. I hope you used small pots for them otherwise the wait could be a long one!

Your mystery plant is a Ctenanthe. Thanks for sending the photo; that makes ID'ing immensely easier for me.

Ctenanthe (ten anth ee) lubbersiana is in the Maranta (prayer plant) family. This is not an easy houseplant because it requires high humidity and is quite unforgiving of lapses in care. It must have lots of bright, but indirect, light all day long. Although it is not a low light plant, it must still be protected from direct sunlight on its leaves. It does best in a small pot filled with a porous peat-based potting mix. Water thoroughly as soon as the surface of the soil feels dry. Do not let temps drop below 65 degrees. Keep humidity levels up in the cooler months by using a humidifier or placing the plant on a pebble tray. Use a complete fertilizer at half strength, but only when the plant is growing actively. Avoid using hard water.

Curled leaves are an indication that the humidity is too low, the roots are too dry, or direct sun is shining on the leaves. Yellow leaves can be a symptom of just about anything. When this plant is under stress it is often victimized by spider mites, mealy bugs, and thrips.

Your Ctenanthe looks healthy. Occasional yellow leaves are normal and no cause for alarm.

Please let me know if any of this is unclear or if you have any additional questions.

Regards,
Will Creed, Interior Landscaper
Horticultural Help, NYC

You can E-mail me directly at: [email protected]

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