Columnea is a spectacular flowering plant which looks best in a hanging basket. It produces bright orange flowers that viewed from the side, they look like leaping fish.
Germination Temperature (°F)
Water well in Summer whenever the surface of the compost shows signs of drying out, at least twice weekly. In Winter keep just damp when growth is slower.
While it is actively growing give it a high phosphate liquid fertilizer, 1/4 the recommended strength at every watering. Do not feed the plant if it is having a rest period.
Re-pot in Spring every 2-3 years, in a shallow basket of fresh compost of 3 parts ericaceous mix to 1 part sharp sand. Put plenty of crocks in bottom of pot or hanging basket.
Sow seeds on surface of seed and cutting compost. Keep seed tray in lit position. Seeds do not germinate all at once.
Take 3 inches stem cutting in Spring and Summer using peat and sand or moistened vermiculite and keep the pot at room temperature in bright filtered light, watering enough to keep vermiculite barely moist. Rooting should occur in about 4 weeks, then transfer to a 3 inch pot of compost.
There are many species and varieties of Columnea. They grow well in the home. They should be kept in a light position and on the dry side when not in flower.
Prune any straggling stems after flowering.
Use water at room temperature to avoid brown spots on the leaves.
Inspect Columneas regularly for pests. They are susceptible to attack by aphids and cyclamen mites. Constant warmth all the year round is essential and moisture should be provided by surrounding the pot with damp peat.
For a good display plant 3-4 rooted cuttings in 10 inch hanging basket.
Spray daily with soft water in Spring and Summer. Avoid spraying flowers and leaves. Stand pot on saucer of pebbles almost covered with water. With a hanging basket keep water in drip tray.
House-plant potting compost.
All parts of the oleander (Nerium oleander), a beautiful Mediterranean-native flowering shrub, are poisonous. Ingesting oleander leaves can cause gastrointestinal, cardiac, and central nervous system problems and possible death.