Brugmansia candida in bloom.
image by Arria Belli:commons.wikimedia.org
Brugmansia, sometimes called angel trumpet or trumpet flower, is a tropical flowering shrub that is often trained and pruned into a tree. It forms large sweetly scented dangling flowers in pale shades from crisp white to peachy pink to yellow.
Plant your brugmansia in a container or ground soil that is nutrient rich, moisture holding and slightly acidic with a pH between 6.5 and 7. Select a location that receives full sun or very lightly dappled shade and that will accommodate your brugmanisia at its mature size. Depending on the varietal you grow expect to allow between 5 feet and 30 feet clearance in height and 5 feet to 20 feet in branch spread.
Water your brugmansia so that the soil surrounding the ball is constantly and evenly moist year-round. Additional water may be required during hot and dry weather, and conversely less water is required when there has been rainfall. Familiarize yourself with the plant's water uptake as it grows by dipping a finger in the soil a few inches down and the degree of moisture in the soil when the brugmansia is performing well and over time you will be able to identify the sweet spot for how much water to give.
Fertilize your brugmansia with a water soluble balanced formula every month after watering when the soil is wet. Apply the fertilizer according to the manufacturer's instructions and water in well. Alternatively, apply a granular slow release fertilizer that only needs to be reapplied twice a year to cut down on maintenance.
Prune or pinch back young brugmansia plants to urge new branch growth, and deadhead spent or fading blooms to prompt new blooms. In the fall, hard prune to control shape and size of the plant as needed or desired as hard pruning is not required for bloom. Always remove damaged, dying or decaying branches and foliage as you see them to prevent spread of disease.
Control the occasional insect problem such as caterpillars by plucking them off of the brugmansia leaves and relocating them. Hose off spider mites with a jet of water or insecticidal soap. Spider mites do not like humidity so spraying down the plant with your garden sprayer on a super fine mist every few days or every week will also discourage infestation.