Cineraria, also known as silver dust, is a half hardy perennial shrub that can survive over winter in milder areas, even with a slight frost. However, in most areas of the UK, it is typically treated as an annual plant. This means that it is often grown as a temporary plant for one season and then replaced the following year.
When planting silver dust outside, it is important to choose a suitable location. Look for a spot that receives full sun to partial shade. This plant thrives in fertile, well-drained soil. It is important to ensure that the soil is not too heavy or waterlogged, as this can lead to root rot and other issues.
If you live in a colder region where winter temperatures drop significantly, it is best to treat silver dust as an annual and replant it each year. In these areas, the plant is unlikely to survive the winter months, even with protection.
Personal experience: I have grown silver dust in my garden for several years now. I live in a mild climate where frost is rare, so I have been able to successfully overwinter the plant. However, I have also grown it as an annual in colder regions where winter temperatures are much lower. In these areas, I found that the plant does not survive the winter, so I replant it each spring.
If you do decide to overwinter silver dust in a mild climate, it is a good idea to provide some protection during colder spells. This can be done by covering the plant with a layer of mulch or placing a frost cloth over it. This will help to insulate the plant and protect it from frost damage.
In terms of maintenance, silver dust is a relatively low-maintenance plant. It requires regular watering, especially during dry periods. However, be careful not to overwater, as this can lead to root rot. It is also a good idea to deadhead faded flowers to encourage continuous blooming.
To summarize, while silver dust, or cineraria, is a half hardy perennial shrub, it is often treated as an annual in most areas of the UK. It can survive over winter in milder climates with minimal frost, but in colder regions, it is best to replant it each year. Choose a location with full sun to partial shade and well-drained soil. Provide protection during colder spells if necessary. With proper care, silver dust can add beauty to your garden with its delicate silver foliage and vibrant flowers.
