Goodenia amplexans

Clasping Goodenia

Botanical Name: Goodenia amplexans
Family: Goodeniaceae
Origin: South Australia endemic — Mount Lofty Ranges, southern Flinders Ranges, Kangaroo Island
Plant Type: Evergreen low shrub / undershrub

Overview

A charming and tough little South Australian native, Goodenia amplexans — the Clasping Goodenia — is one of the few plants that can genuinely claim Adelaide as its home territory. Originally described by botanist Ferdinand von Mueller from plants growing on the ridges and gullies near Adelaide, this compact aromatic shrub is perfectly adapted to the region's soils, climate and conditions.
From late winter through summer it produces cheerful fan-shaped yellow flowers in spike-like clusters above its attractive sticky, aromatic foliage. The stem-clasping leaves give the plant its common name and a distinctive, textural quality. Tolerant of drought, frost and a wide range of soils, it's an excellent choice for habitat gardens, native plantings, informal borders and erosion-prone banks across South Australia. A reliable food plant for native butterflies and insects.

Key Features

• Mature Size: 0.5–1.0 m H × 0.5–1.0 m W (compact erect to slightly sprawling habit)
• Growth Rate: Moderate — 15–25 cm per year; prune to encourage bushier growth
• Foliage: Opposite pairs of egg-shaped to elliptic stem-clasping leaves with toothed edges; hairy and sticky with a pleasant aromatic scent; evergreen year-round
• Flowers: Fan-shaped yellow flowers in spike-like clusters; late winter through summer (August–February); attractive to native insects and butterflies
• Fragrance: Foliage pleasantly aromatic; flowers not fragrant
• Seasonal Interest: Aromatic evergreen foliage year-round → yellow flower spikes from late winter through summer → light pruning after summer flowering maintains compact habit → fresh new growth in autumn
• Wildlife Value: Important food plant for native butterflies and caterpillars; flowers attract native bees and beneficial insects
• Tolerance: Drought-tolerant once established; moderate frost hardy; heat-tolerant; coastal-tolerant (second-line); lime-tolerant; adaptable to clay, loam and sandy soils; dislikes prolonged waterlogging
• Planting Density: Tight groundcover/hedge: 3 plants per metre (30–35 cm spacing); Standard border: 2 plants per metre (50–60 cm spacing); 1 plant per m² for mass planting
• Pet Friendly: No known toxicity to cats or dogs

Where It Works Best

• Sunlight: Full sun for best flowering and compact growth; tolerates very light part shade
• Soil: Adaptable to clay, loam and sandy soils; tolerates lime and slightly alkaline conditions typical of Adelaide; good drainage preferred but handles heavier soils better than most natives
• Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: very drought tolerant — deep soak every 3–4 weeks in summer; little to no supplementary watering needed in cooler months
• Maintenance: Prune lightly after flowering (autumn) to encourage bushier growth and more prolific flowering the following season; feed with a low-phosphorus native fertiliser in spring; minimal ongoing care once established
• Lifespan: Perennial; 5–10+ years with occasional pruning
• Climate Zones: Perfectly suited to all Adelaide zones — Adelaide Plains, foothills, Mount Lofty Ranges, Fleurieu Peninsula, Yorke Peninsula, Kangaroo Island, coastal suburbs
• Soil pH: Acid to alkaline; highly adaptable across Adelaide's range of soil pH levels

Landscape & Design Ideas

• Native habitat garden staple — provides year-round butterfly food plant value alongside cheerful long-season yellow flowers
• Low informal hedge or border edging for native streetscapes, council plantings and public landscapes
• Erosion control and bank stabilisation on rocky slopes, embankments and coastal footslopes
• Combine with other local SA natives such as Lomandra, Eremophila, Westringia and Brachyscome for a cohesive, low-water native palette
• Rockery and gravel garden feature — thrives in the free-draining, low-nutrient conditions where many plants struggle

Why You Will Love It

Goodenia amplexans is a genuine Adelaide original — first collected from the city's own ridges and gullies, and still perfectly at home here today. Tough, cheerful and alive with butterflies from late winter through summer, it's the kind of plant that quietly does everything right. Low water, low maintenance, high wildlife value, and those bright yellow flowers never fail to lift a garden.