Gastrolobium celsianum
Common Name: Swan River Pea
Description:
Gastrolobium celsianum, commonly known as Swan River Pea, is a versatile and attractive shrub known for its graceful, scrambling form. Reaching 1-2m in height and spreading 50cm-1m wide, this plant features long, slender branches and dark green leaves with a soft grey underside. From late winter through spring, it produces clusters of deep red, nectar-rich cup flowers that are a favorite of local birds, adding both color and wildlife interest to the garden.
Habitat and Growing Conditions:
Swan River Pea is highly adaptable, flourishing in well-drained soils and tolerating both full sun and part shade. Its tolerance for a wide range of climates, including humid areas and medium frosts, makes it suitable for diverse garden settings across Australia. Often used as an understory plant, it’s well-suited to native and mixed gardens where it can bring vibrant colour and structure.
Landscaping Uses:
This small, easy-care shrub offers a naturally neat habit, making it ideal for low-maintenance gardens. Its spreading growth, unusual buds and vivid red flowers make it a standout choice for borders, wildlife gardens, and underplanting beneath larger shrubs and trees. Swan River Pea’s dense foliage and abundant blooms make it a valuable addition to native gardens, rockeries, or as a colorful accent in mixed beds.
Ecological and Safety Notes:
While Gastrolobium species often contain fluoro acetic acid, which can be toxic to dogs and livestock, Gastrolobium celsianum is not toxic, making it a safer choice for gardens shared with pets. Its bird-attracting flowers enhance its value in wildlife-friendly landscapes, supporting local nectar-feeders.
Care and Maintenance:
This shrub is low-maintenance once established. It thrives in well-drained soils and benefits from occasional pruning to maintain shape if desired. Swan River Pea is highly resilient, tolerating medium frosts and requiring minimal additional water, making it a great choice for gardens in varied climates and soil conditions.











