Short-pod Swainsona Plant Care
Swainsona brachycarpa Benth.
Updated · Sources · How we source care data
Swainsona brachycarpa, commonly known as slender swainson-pea, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a prostrate or ascending perennial herb with imparipinnate leaves usually with 9 to 13 egg-shaped to narrowly elliptic or egg-shaped leaflets, and racemes of up to 12 white, purple or dark red flowers.
Every 7–10 days
Full sun to partial shade
50–80°F
40–70%
At a glance
How do you care for Short-pod Swainsona?
Plant Short-pod Swainsona in full sun to partial shade (USDA zones 12a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 50–80°F (10–27°C). Fertilize it every 6 months during the growing season.
Where Is the Short-pod Swainsona Native To?
What Is the Short-pod Swainsona?
Short-pod Swainsona (Swainsona brachycarpa) belongs to the Fabaceae family within the Swainsona genus. Short-pod Swainsona is native to eastern Australia.
Short-pod Swainsona displays a bushy perennial shrub growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Short-pod Swainsona produces showy pea-like flowers in various colors.
Leaf size: approximately 4 inches.
How Often Should You Water a Short-pod Swainsona?
Water a young or newly planted Short-pod Swainsona every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Short-pod Swainsona Need?
Short-pod Swainsona thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Short-pod Swainsona Prefer?
Swainsona brachycarpa tolerates temperatures of 50–80°F. Short-pod Swainsona prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a Short-pod Swainsona?
Well-draining sandy loam with added organic matter. Good drainage is essential for Short-pod Swainsona to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Short-pod Swainsona?
Feed Short-pod Swainsona every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Short-pod Swainsona?
Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter. Avoid low spots where water collects after rain.
Short-pod Swainsona is suited to USDA Zone 12a.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Short-pod Swainsona?
Short-pod Swainsona can spread to about 2 ft (0.6 m) and reach about 3 ft (1 m) tall. Space plants about 2 ft (0.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Short-pod Swainsona?
Prune Short-pod Swainsona while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Short-pod Swainsona in Winter?
Short-pod Swainsona is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Short-pod Swainsona?
Short-pod Swainsona can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to swainsona acuticarinata plant care, which shares the same genus.
Is the Short-pod Swainsona Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Short-pod Swainsona, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Short-pod Swainsona?
Short-pod Swainsona is susceptible to aphids, whiteflies, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Short-pod Swainsona Need?
Short-pod Swainsona grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Short-pod Swainsona is native to eastern Australia. In cooler regions, grow Short-pod Swainsona as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Short-pod Swainsona is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Swainsona genus — compare its care with other Swainsona species on PlantoScan.
Swainsona is part of the Fabaceae plant family — browse all Fabaceae genera and species.
Short-pod Swainsona thrives in bright light and direct sun — see other bright-light plants.
More Swainsona Species
Other Swainsona species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Swainsona brachycarpa Benth., family Fabaceae (first published in Fl. Austral. 2: 217 (1864)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Short-pod Swainsona, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
