A Species with Australian Roots
Coleus scutellarioides has a remarkably broad natural range extending from mainland Southeast Asia through Malesia and the western Pacific to northern Australia.
Although ornamental coleus is strongly associated with Southeast Asian horticulture, the species itself is also genuinely native to parts of Western Australia, the Northern Territory and Queensland.
Across its wider range, Coleus scutellarioides has a long history of human use as well as ornamental cultivation. Modern botanical databases record food, medicinal, environmental and social uses across parts of its range.
The Rainbow Mix offered by Sacred Plants Australia, however, is supplied specifically as ornamental propagation seed.
A Plant with a Restless Botanical Name
Few familiar garden plants have travelled through as many botanical names.
Older botanical and horticultural literature may refer to this species as Plectranthus scutellarioides, Solenostemon scutellarioides, Coleus blumei or related historical names.
Modern taxonomic treatment again accepts Coleus scutellarioides.
That shifting nomenclature explains why old gardening books, herbarium records and nursery catalogues can appear to describe different plants while often tracing the same remarkable ornamental lineage.
Victorian Britain Discovers Foliage as Fashion
By the middle of the nineteenth century, coleus had entered a British horticultural culture hungry for unusual foliage plants.
Nurserymen and breeders began raising large seedling populations and selecting individuals with increasingly dramatic combinations of crimson, purple, yellow and green.
Instead of breeding primarily for flowers, they were breeding colour directly into the leaves.
Coleus arrived at exactly the right moment for one of Victorian horticulture's most distinctive fashions: carpet bedding.
Thousands of low-growing plants could be arranged into geometric patterns, scrollwork, crests and elaborate formal designs. Coleus was exceptionally suited to the style because its foliage could be used almost like colour on a painter's palette, creating living blocks of crimson, yellow, purple and green.
The plant also moved into conservatories, glasshouses and private collections, where exceptional new foliage forms became botanical curiosities and coveted collector plants.
Competition became intense.
New hybrids commanded extraordinary auction prices and the pace of breeding accelerated so rapidly that contemporary horticultural writers were soon describing the phenomenon as “Coleus fever”.
Few ornamental plants demonstrate the creative possibilities of seed-grown variation more vividly.
