Petrocosmea plants thrive in full sun or semi-shade, and they require moderate to regular water. Depending on the season, some species may require more water than others. The foliage of these plants ranges from green to silver, with tinges of purple or yellow. The shape of the leaves may range from triangular to heart-shaped, depending on the species. Petrocosmea plants are adorned with clusters of white, off-white and blue, lavender and purple flowers during the spring and summer months.
When caring for Petrocosmea in a pot, be sure to keep it in moist soil and out of direct sunlight, especially if you live in a cold region. If you are bringing them indoors during colder months, put them in a bright window to get plenty of indirect light.
Petrocosmea plants are usually easy to care for and can tolerate temperature fluctuations. However, they can be prone to scale and spider mites and should be inspected regularly. Cut off dead foliage and trim away any infected leaves as needed. Fertilize with a liquid fertilizer a few times during the growing season. Petrocosmea plants are normally a low-maintenance species that can be enjoyed indoors or outdoors with minimal effort for many years.