Genus Information
Sun Requirements
Verbena bonariensis can handle either an exposed or a sheltered position and requires full sun to thrive, this consists of more than six hours of direct sunshine per day.Hardiness
Purple top is semi-hardy, and will benefit from some protection in winter.
Growth Information
Verbena bonariensis is quite a fast grower and in the right conditions will reach its full size in 2-5 years. It can reach heights of up to 2m and will spread up to 0.5m.
Flowering
Verbena bonariensis produces purple flowers. These flowers will be produced between June to September. This plant produces fragrant flowers.
Foliage
Purple top is a deciduous plant and produces green foliage and will benefit from some pruning in Spring.
Wildlife, Pests and Diseases
Verbena bonariensis is generally pest free, and it tends not to have problems with diseases. It is also known to attract bees, butterflies, birds and other pollinators and is not considered to be toxic.
Soil Requirements
Purple top is a versatile plant and can cope with wet or drier soils, but prefers there to be decent drainage and it can be planted in soil of any pH.