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Products > Boronia 'Carousel'
Boronia 'Carousel' - UCSC Koala Blooms Introduction

Note: This plant is not currently for sale. This is an archive page preserved for informational use.  

Habit and Cultural Information
Category: Shrub
Family: Rutaceae (Citrus)
Origin: Australia (Australasia)
Evergreen: Yes
Flower Color: Pink
Bloomtime: Spring
Fragrant Flowers: Yes
Parentage: (Boronia heterophylla x B. molloyae)
Height: 4-6 feet
Width: 3-4 feet
Exposure: Sun or Shade
Irrigation (H2O Info): Medium Water Needs
Winter Hardiness: 20-25 F
Boronia 'Carousel' - A moderately dense and vigorous upright shrub that grows to 6 feet tall by 4 feet wide. It has aromatic soft dark green needle-like foliage and in mid spring appear the attractive solitary bell-shaped pink lightly-fragrant flowers that age to deep red. The flowers hold well when cut. Plant in full sun to part shade in a well-drained garden soil and irrigate occasionally to regularly. It is hardy to moderate frost, tolerating temperatures down to the mid to low 20s F. Prune at flowering, using the long lasting flowers in arrangements, or shortly afterwards to keep plants attractive and bushy. As with other Boronia this plant appreciates a cooler shaded root area that mulch or other nearby plantings can provide. It also blooms well in the container. The Australian Cultivar Registration Authority website notes that the origin of this plant is somewhat obscure. It was reportedly found in the wild in the Albany district of Western Australia in 1983 by Forest Native Nursery of Duffy's Forest, New South Wales but later registration of the plant was made in 1987, applied for by Yellow Rock Native Nursery, Winmallee in New South Wales. It is thought to have Boronia heterophylla and Boronia molloyae as parents but seems more vigorous and more tolerant of soil fungus than either parent. The name Boronia honors Italian Botanist Francesco Borone (1769-94). This plant had been accessioned as being received by the University of California Santa Cruz Arboretum in 1994. We first received this plant to trial in November 2008 from the Koala Blooms Australian Plant Introduction Program. It is scheduled for release in 2011.  The information on this webpage is based on research conducted about this plant in our nursery library, from online sources, as well as from observations made of it as it grows in the nursery in containers, in the nursery's garden and in other gardens where we have observed it growing. We will also incorporate comments received from others and welcome getting feedback from those who may have additional information, particularly if this information includes cultural information that would aid others in growing  Boronia 'Carousel'.