Golden trumpet vine is a common sight in gardens with year-round warmth and plenty of sun. These needs make growing Allamanda indoors ideal where there is good southern or western exposure. Even the northernmost gardener can enjoy an indoor Allamanda flowering vine. You may have to invest in a good plant light and turn up the thermostat, but it’s worth it to bring the rich yellow flowers and lovely formed foliage. Allamanda plant care is similar to most tropical houseplants and can be mastered with a few tricks.