Brunfelsia americana is an ornamental plant in the family Solanaceae. It is native to South America, and is found in Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. The plant has been introduced to other countries, including the United States, where it is grown as a houseplant or in gardens.
Related plant:
Brunfelsia Grandiflora
About soil condition, Brunfelsia americana like a well-drained soil mix. They improve drainage by adding organic matter to the planting hole or bed. They also like a slightly acidic soil with a pH of 6.0 to 6.5. A layer of mulch helps keep the roots cool and moist.
So, like the other members of the nightshade family, Brunfelsia americana does best in full sun to partial shade. too much shade will make this evergreen shrub leggy. It can handle some drought, but looks best with regular watering, especially during hot summer months.
The temperature condition that is most favorable for the growth of Brunfelsia americana is a temperature range between 20 and 25 degrees Celsius. This temperature range is optimal for the growth and development of this plant species. beyond this temperature range, the growth of Brunfelsia americana begins to decreased rapidly. For instance, at a temperature of 30 degrees Celsius, the growth of this plant species is stunted significantly.
Ideal humidity condition for this plant is 50% and above. The plant will do well in soil that is constantly moist but not soggy. Be sure to provide good drainage. You may need to mist the leaves occasionally to raise the humidity levels.
For the fertilizer, this plant does best with a low nitrogen, high phosphorus fertilizer. The root system is not very deep, so a shallow container is best. You will also want to make sure that the container has good drainage.
Pruning brunfelsia americana is important to encourage new growth and prevent the plant from becoming too large. When pruning, cut back the main stems by a third to a half, and then prune the side branches back by a third. This will encourage the plant to produce new growth, which will make it fuller and more compact.
Propagation for brunfelsia americana is typically done through stem cuttings taken from new growth. Cuttings should be taken from the tips of the stems and should be 4-6 inches long. Cuttings should be placed in a well-draining soil mix and should be kept moist. Cuttings typically root within 4-6 weeks.
Usually, the plant growth rate is slow to moderate when cultured under ideal growing conditions. However, given the right environment and care, this plant can grow quite rapidly. The key to providing the brunfelsia americana with the best possible chance for a rapid growth rate is to keep the roots moist and well-drained while allowing the soil to dry out a bit between watering sessions. Additionally, fertilizing the plant every few weeks will give it the nutrients it needs to reach its maximum growth potential.
Common problems for this kind of plant plants are root rot, leaf spots, and powdery mildew. Root rot is caused by too much water and can lead to the plant dying. Leaf spots are caused by a fungus and can make the leaves of the plant turn yellow, brown, or black. Powdery mildew is caused by a fungus and can make the leaves of the plant covered in a white powder.
Source:
Brunfelsia pauciflora - North Carolina State University
Brunfelsia americana - 2 images at PhytoImages.siu.edu image,
Botany Collections Search - collections.nmnh.si.edu