Sturt’s Desert Pea Seeds Swainsona formosus

STURT’S DESERT PEA Seeds

Botanical Name: Swainsona formosa
Other Names: Desert Pea, Sturt Pea

• Iconic Australian native wildflower with bold red flowers featuring a glossy black centre—instantly recognisable and deeply symbolic in Australian culture.
• Low-growing, sprawling plant naturally adapted to arid and semi-arid landscapes; a showstopper in native gardens, tubs, or hanging baskets.
• Highly ornamental and prized for dramatic colour displays from late winter into spring and beyond.
• Drought-tolerant once established and thrives in very free-draining sandy or gritty soils.
• Nitrogen-fixing legume that contributes to soil health in low-fertility conditions.
• Excellent selection for native landscaping, wildflower displays, and restoration plantings in suitable climates.
• South Australia’s floral emblem and one of Australia’s best-loved native plants, celebrated for resilience in harsh climates.

Plant Details

• Plant Type: Prostrate to trailing native perennial, often grown as an annual
• Plant Height: 10–30 cm tall; stems can spread up to about 2 m long in natural habit, giving a low, wide cover.

Sowing Information

• Germination: About 4–10 days under ideal conditions; longer if conditions are cooler.
• Depth: Sow very shallowly—about 5 mm deep is typical, on top of a gritty surface layer.
• Position: Full sun; warm, sunny spots are best.
• Sow Where: Seed trays, tubes, large pots or tubs with excellent drainage, or direct sow in well-prepared beds.
• Soil Type: Extremely free-draining soils—sandy or gritty mixes with minimal organic richness; avoid heavy or waterlogged soils.
• Spacing: Roughly 60 cm–150 cm between plants depending on site and desired coverage; allow space for sprawling stems.

Growing Tips

• Scarify or pre-treat seed: soaking overnight is a reliable method to help break dormancy; sow soon after.
• Use a coarse, low-nutrient mix with added sand or grit; rich fertilisers can be detrimental—native-friendly or very low-phosphorus options only if required.
• Water lightly and from below after germination to minimise root rot risk; keep the surface slightly moist until seedlings emerge, then water sparingly.
• Protect from overwatering and poorly drained soil—root rot is a known issue if soil remains soggy.
• Expect flowering around four months after sowing under favourable conditions, especially in warm, sunny sites.

Flowering

Large, vivid pea-shaped flowers appear from late winter to spring and sometimes beyond, delivering a stunning visual display that celebrates native biodiversity.

Traditional & Practical Uses

• Widely appreciated as a cultural and natural symbol across Australia, and often featured in art, storytelling, and conservation messaging.
• Grown mainly for ornamental display, native-themed gardens, and educational or conservation plantings.
• Useful in arid or low-input landscapes where colourful, low-water plants are desired.

When to Sow Sturt’s Desert Pea in Your Climate