Scaevola, commonly known as the Fan Flowers, is a diverse group of Australian native plants valued for their drought tolerance, long flowering season and versatility in the garden. With around 80 species native to Australia, the genus includes everything from ground covers and small shrubs to scrambling climbers.
Best known for their distinctive fan-shaped flowers, Scaevola species thrive in a range of climates and soil types, making them popular choices for native gardens, coastal landscapes and water-wise plantings.
Among the most widely grown forms is Scaevola humilis, often sold under a range of cultivar names. It forms a dense mat of foliage covered in masses of purple flowers from spring through summer. Different cultivars vary in height and spread, with some remaining compact and requiring very little maintenance.
Although heavy frosts may damage foliage, established plants usually recover quickly once warmer weather returns.
Which Scaevola is Best for Your Garden?
| Purpose | Best Species |
|---|---|
| Ground Cover | S. humilis |
| Hanging Baskets and Pots | S.aemula |
| White Flowers | S. albida |
| Climbing Habit | S.ramosissima |
| Bush Food Garden | S. spinescens |
| Coastal Gardens | S. crassifolia |
Why Grow Scaevola?
- Drought tolerant once established.
- Long flowering season.
- Excellent ground cover plant.
- Suitable for coastal gardens.
- Attracts pollinators.
- Low maintenance.
- Some species perform well in containers and hanging baskets.
How to Grow Scaevola – Care and Maintenance
Position
Plant in full sun to light shade.
Soil
Most species prefer well-drained soil but adapt readily to a range of soil types.
Watering
- Water regularly during establishment.
- Spring-planted specimens may require additional watering through their first summer.
- Once established, plants are highly drought tolerant.
Pruning
Light pruning after flowering helps maintain a compact habit and encourages fresh growth.
Mulching
Apply mulch around plants to conserve moisture and suppress weeds.
Popular Garden Species
Scaevola humilis – Purple Fan Flower
A low-growing spreading ground cover with masses of purple flowers. Excellent for borders, embankments and mass planting.
Scaevola albida – White Fan Flower
A hardy species with attractive white flowers. Useful in native gardens and coastal landscapes.
Scaevola aemula – Fairy Fan Flower
Perhaps the best-known species internationally. A trailing plant widely used in hanging baskets, containers and garden beds.
Scaevola ramosissima – Climbing Fan Flower
A scrambling species that can be trained over trellises, fences and other supports.
Other Notable Scaevola Species
S. crassifolia
A tough coastal species with fleshy foliage and excellent drought tolerance.
S. spinescens – Maroon Bush
A larger shrub valued in bush food gardens and traditional Australian plant use.
S. striata
An upright flowering shrub suited to mixed native plantings.
Landscaping Uses
Scaevola is one of the most useful Australian native plants for low maintenance landscapes.
Common uses include:
- Ground cover plantings.
- Native gardens.
- Coastal gardens.
- Rockeries.
- Cottage gardens.
- Pollinator gardens.
- Hanging baskets.
- Containers and pots.
- Retaining walls and embankments.
- Water-wise landscapes.
The trailing habit of species such as S. aemula makes them particularly effective when allowed to spill over the edges of pots and raised garden beds.
Flowering Season
Most Scaevola species flower from spring through summer, with many continuing well into autumn in warmer regions.
Flower colours include:
- Purple
- Blue
- Mauve
- White
The flowers attract native bees, butterflies and other beneficial pollinating insects.
Scaevola Species – Quick Comparison
| Species | Height | Growth Habit | Climate Requirements | Flowers |
|---|---|---|---|---|
| S. aemula | 30–50cm | Spreading to trailing perennial | Warm temperate to subtropical; drought tolerant | Blue, mauve, purple, pink or white flowers from spring to autumn |
| S. humilis | 20–40cm | Dense mat-forming ground cover | Adaptable; drought tolerant once established | Purple to mauve flowers from spring through summer |
| S. albida | 30–60cm | Spreading shrub or ground cover | Coastal and temperate climates; salt tolerant | White flowers from spring through autumn |
| S.ramosissima | 1–2m | Scrambling climber | Warm temperate to subtropical; sheltered position | Mauve-purple flowers from spring through summer |
| S.crassifolia | 30–80cm | Compact coastal shrub | Coastal areas; highly salt and drought tolerant | Blue-purple flowers, mainly winter to spring |
| S.spinescens | 1–3m | Dense shrub | Arid and semi-arid climates; very drought tolerant | Small cream-white flowers followed by fruit |
| S.striata | 50cm–1m | Upright shrub | Temperate to semi-arid climates | Blue to mauve flowers from spring through summer |
Australian Scaevola in International Gardens
Although native to Australia, Scaevola aemula has become one of the most widely grown Australian ornamental plants overseas.
It is particularly popular in the United States, where it is used as a heat-tolerant flowering annual in containers, hanging baskets and landscape plantings. Its ability to flower continuously through hot weather has made it a favourite with gardeners and commercial landscapers alike.
Among Australian ornamentals, this is a plant that ranks alongside Kangaroo Paw, Grevillea and Bottlebrush as one of the most commercially successful Australian native plants grown internationally.
Popular Growing Regions
In the USA Scaevola is widely grown in:
- Florida
- Texas
- California
- Arizona
- Georgia
- Louisiana
- Other southern coastal states
In USDA Zones 9–11 it is often grown as a perennial, while colder regions generally treat it as a summer annual.
