Light:

Full sun (southern exposure) or partial sun (east or west exposure).

Temperature:

Maintain indoor temperatures above 60 degrees especially during the winter as this helps the plant to absorb nutrients and maintain active growth.   However, they will tolerate cooler temperatures.

Humidity:

Preferably 50% or higher; however, they will tolerate low levels with no harm.

Watering:

Bring soil to a state of visual dryness between watering.  When repotting, don't over pot.  Keeping them a little under potted creates a healthier environment for the root system. The foliage can show staining on the leaves if watered with ice-cold water.

Fertilizer:

Go easy on the fertilizer: 1/2 tsp. of fertilizer per gallon of water every two weeks.  Excessive fertilization can create difficulties in culture, so it's best to err on the lean side.

Pruning:

Prune any time growth is excessive or to maintain shape and size.  Best to do hard pruning after flowering is complete.    

Insects and Disease:

For the most part, Barlerias are not highly susceptible to insects.  They have little susceptibility to diseases. 

Comments:

Some Barlerias flower on the shortening day length of fall and winter.  For these varieties, it is best to prune no later than mid summer.