This plant requires warm temperatures for best performance. Nighttime temperatures should remain around 65 to 70 F. (18-21 C.).
Water the plant frequently in the summer but let the top few inches of the soil dry out before watering anew.
The plant can go in the ground in warmer areas or stay in a pot.
Bright but indirect sun is a requirement for growing a dipladenia plant. The best flowers are formed in a well lit area. Pinch off gangly growth when the plant is young to force thicker stronger branches.
The only difference between mandevilla and dipladenia care is that mandevillas require a trellis or staking. Dipladenia only needs a stake to keep the little plant straight as it matures.
Fertilize every three to four weeks during the growing season with a liquid plant food as part of good dipladenia care.
Overwinter indoors or in a greenhouse and suspend fertilizing in winter.