Prostanthera Rotundifolia
Prostanthera rotundifolia
Prostanthera rotundifolia is an aromatic Australian native shrub prized for its spectacular spring display of purple to mauve flowers and highly fragrant foliage. It symbolizes vitality, healing, and the refreshing power of nature.
Lamiaceae (Mint family)
Spring (September to November)
Symbolism & Meanings
Key Meanings
Perfect For
Color Meanings
Similar flowers: bee balms and leptospermum scopariums also share similar meanings.
Cultural Significance
Prostanthera rotundifolia holds a meaningful place in Aboriginal Australian tradition as a medicinal herb. The genus name Prostanthera derives from Greek words meaning "appendage on the anther," referencing the distinctive floral structure. The specific epithet rotundifolia means "round-leaved" in Latin. Today the plant is celebrated both as a fragrant ornamental and as a bush tucker herb, bridging Indigenous knowledge and contemporary garden culture across south-eastern Australia.Shop Our Floral Collection
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Physical Characteristics
Natural Habitat
Growing Guide
Sunlight
Full sun to part shade; prefers a sheltered position, especially in warmer regions
Water
Prefers a moist root run; water weekly until established, then water well in summer and occasionally throughout the year. Wilting indicates the plant needs water but it recovers quickly once watered. Avoid overwatering to prevent root rot.
Soil
Well-drained, Sandy, Sandy Loam, Moist but free-draining
Expert Growing Tips
Plant in autumn to take advantage of cooler conditions for establishment
Ensure excellent drainage; raised beds are helpful in heavy soils
Prune by one-third annually after flowering to maintain a bushy shape and prevent legginess
Feed with an organic or native plant fertiliser after flowering
Mulch in summer to retain soil moisture and keep roots cool
Plant near paths or garden edges so the minty fragrance is released when brushed against
Uses & Benefits
Ornamental Uses
- Spring-flowering border and shrubbery plantings
- Woodland garden understorey beneath eucalypts
- Pathway and garden edge plantings where foliage fragrance can be released when brushed
- Container growing with regular pruning
- Native hedge and screen plantings
Traditional Uses
- Traditionally used by Aboriginal Australians to treat headaches, colds, and fever
- Leaves are rich in volatile oils including menthol and cineole, giving antibacterial and antifungal properties
- Used as a culinary substitute for oregano with earthy, minty, and citrus-tinged flavour notes
Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.
Further Reading
Frequently Asked Questions about the Prostanthera Rotundifolia
Is Prostanthera rotundifolia edible?
Yes, the leaves of Prostanthera rotundifolia are edible and have been used as a bush tucker herb. The flavour is a complex blend of mint and oregano with earthy and citrus notes, and the leaves can be used fresh or dried as a culinary seasoning.
Why is it called Round-Leaved Mintbush?
The common name comes directly from the Latin species name: rotundifolia means "round-leaved," referring to the small, rounded, aromatic leaves. The "mintbush" part reflects its membership in the mint family (Lamiaceae) and its strongly aromatic foliage.
How do I keep Prostanthera rotundifolia bushy and floriferous?
Prune the plant by about one-third of its growth each year immediately after flowering. This prevents the shrub from becoming woody and leggy, encourages fresh new growth, and promotes a better flower display the following spring.
What does Prostanthera rotundifolia symbolize?
Prostanthera rotundifolia is associated with vitality, healing, and natural refreshment. Its medicinal heritage in Aboriginal Australian culture and its invigorating minty fragrance make it a symbol of wellness and the restorative power of nature.
Available Colors
Quick Facts
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