Dampiera altissima 'Purple Oz'

(Purple Oz™ Dampiera)

Dampiera altissima ‘Purple Oz’ (Purple Oz™ Dampiera) is a dense, low spreading shrub, that reaches an average mature landscape size of 1-2′ tall by 2-3′ wide. Featuring fine, silver-green foliage and blanketed with small purple-blue flowers with a blooming period lasting from June until October, a pollinators dream.

Origins And Landscape Adaptability

Native to the southwest part of Western Australia, this plant is especially adaptable to dry summers and wet winters. Bred for ornamental landscapes, the genus Dampiera is named after William Dampier, an English explorer, who was one of the first to document plants on the Australian continent.

Thrives in warm, dry climates. Well-suited to California’s Bay Area and inland regions. Frost sensitive; cover plants during cold fronts for protection.

Planting And Care Instructions

Sunlight: Purple Oz™ Dampiera performs best in full sun exposure.

Watering: Water regularly after planting to help establish well in its new location. Once established, reduce frequency to only during prolonged drought conditions. This variety is drought tolerant once established.

Soil: Plant in well-draining soil. If needed, amend with added sand or rock to improve drainage.

Fertilizing: Fertilizing isn’t necessary for this variety.

Pruning: Pruning for desired shape or to reduce its size can be done in the spring before new growth begins.

USDA Hardiness Zones: This variety is susceptible to frost; cover plants after dusk during cold fronts for protection. Rated for USDA growing zones 8–11.

Pollinators: The rich purple flowers attract bees and beneficial insects.

Landscape design ideas 

Simplify maintenance by planting Purple Oz™ Dampiera next to other drought tolerant varieties like Salvia clevelandii ‘Allen Chickering’while also adding interest with their varying heights. A creat companion plant for cottage style gardens. For a more contemporary look, consider planting Purple Oz alongside ornamental grasses like Festuca glauca ‘Elijah Blue’  or Miscanthus sinensis ‘Morning Light’.

FAQ -Frequently Asked Questions About Dampiera altissima ‘Purple Oz’

How big does it grow?
Dampiera altissima ‘Purple Oz’ reaches an average mature landscape size of 1–2 feet tall and 2–3 feet wide. It has a moderate growth rate and a naturally dense growth habit.

When does it bloom?
It blooms from summer through fall, typically from June through October in California. This makes it one of the longer-blooming shrubs available, providing months of small, fragrant white flowers.

Is it drought tolerant?
Once established, after the first full growing season, it is moderately drought tolerant. During establishment, regular watering is important. In California’s hot inland climates, weekly deep watering during summer is recommended even for established plants.

Can I grow it in a pot or container?
Yes. it is well-suited to container gardening. Choose a container at least 14–16 inches in diameter with good drainage holes. Container plants may need more frequent watering than in-ground plants, especially during summer.

Is it deer resistant?
Dampiera altissima ‘Purple Oz’ has moderate resistance to deer.

What plants grow well with Dampiera altissima ‘Purple Oz’ ?
This variety pairs beautifully with grasses like Festuca glauca ‘Elijah Blue’  or Miscanthus sinensis ‘Morning Light’.

Is it evergreen?
Yes, Dampiera altissima ‘Purple Oz’ is an herbaceous perennial that retains its foliage year round, much like an evergreen plant.

Botanical Name: Dampiera altissima 'Purple Oz'

Common Name: Purple Oz™ Dampiera

Average Landscape Size: 1-2' x 2-3'

Plant Type: Evergreen

Bloom Color: Purple-Blue

Foliage Color: Silver-Green

Forms: Shrub

Special Features: Attracts Butterflies, Attracts Hummingbirds, Deer Deterrent, Drought Tolerant, Good For Container Or Ground Planting, Local Pollinator, Low Maintenance, Ornamental Plant, Waterwise,