Dipladenia is a climber with glossy green leaves and an abundance of trumpet-shaped flowers. This plant begins to flower at early age when it is no more than 1 feet high and has not yet started to climb. It can be trained round a loop of wire or up a trellis.
Water 2-3 times a week in Summer. In Winter water every 10 days or when top layer of compost feels completely dry.
Feed every 14 days in Spring and Summer with standard liquid fertilizer.
Re-pot into next size pot every time roots grow through bottom of pot until maximum convenient pot size about 8 inches is reached. Thereafter change top soil with fresh mixture only annually.
Plant 3 inch tip cutting taken from the new growth produced in Spring, in 3 inch pot containing seed and cutting compost or equal mixture of peat moss and perlite or coarse sand. Enclose in a plastic bag or heated propagator and place in medium light and in warm place. When rooting has occurred, uncover and begin to water the plant and treat as a mature Dipladenia.
Grow Dipladenias in bright light avoiding direct sunlight. They will not flower if they are grown in insufficient light. They can be kept short and bush by regular pruning.
In Autumn, after the flowering period ends, prune away nearly all the shoots which have by then finished flowering. They may be shortened to 1 inch.
As floor standing specimen in lounge, as table-top feature plant when small.
Spray daily in Spring and Summer. Stand pot on saucer of pebbles almost covered with water all year round or plunge into an outer pot with damp peat between the pots.
House-plant potting compost.
Watering is necessary when transplanting, but be careful not to over water.