Light:

Full sun (a south exposure).

Temperature:

As a potted plant, maintain indoor temperatures above 60°.

Humidity:

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

Watering:

Bring soil to a state of dryness between watering.  Do not keep them evenly moist. They transpire freely and need copious amounts of water when grown tight in a container or have become large vines.  When watering, thoroughly saturate soil until a little water runs out of the bottom of the pot.

Fertilizer:

Under high light they are moderate feeders and need regular applications of fertilizer.  Be sure to use a feed with an elevated phosphate level.  Excessive nitrogen will produce a rank vine with few flowers.

Pruning:

The best time to prune is after flowering.  They flower on the shortened day length of fall and winter so as to ensure blooming; don’t prune after mid summer.

Insects and Disease:

They have few problems with insects or diseases. The physiological condition of edema can be a problem when grown indoors or in greenhouses.

Comments:  

A beautiful climber in the morning glory family with tremendous vigor and speed.  The blooming cycle is fall through spring and clusters of blooms emerge along the stem at the leaf axis.  If allowed to climb and clamber in an open space the flowers become more visible than when wrapped on a stake or trellis.  The greatest challenge in growing this plant is the physiological outgrowth of edema and having enough room to culture it.