How to grow purslane
Overview
Purslane (Portulaca oleracea) is an edible succulent green grown as a warm-season vegetable. It produces tender stems and leaves with a slightly tangy flavour, popular in salads and stir-fries. Extremely heat-tolerant and drought-resistant, it is ideal for Australian summers but will not survive frost.
Varieties
- Golden Purslane — A cultivated variety with yellow-green leaves, slightly larger and less weedy than common purslane, popular in Australian gardens.
- Common Purslane — The wild-type form, often self-sown; tender when young and widely foraged or cultivated as a leafy green.
Soil Preparation
Prefers well-draining sandy or loamy soil with a pH of 6.0–7.0. Avoid heavy clay or waterlogged conditions; incorporate organic matter if drainage is poor.
Growing Guide
Sow seeds directly into well-drained soil in full sun after the last frost. Space plants 20–30 cm apart and keep soil moderately moist until germination (7–14 days), then reduce watering. Purslane thrives on neglect and produces the best flavour when grown in lean soil with minimal fertiliser.
Sowing
Sow seeds 5 mm deep, spacing 20–30 cm apart, or scatter thinly. Germination takes 7–14 days at 20–30°C. Direct sow is preferred, but can be started in punnets for transplanting after frost.
Care
Feed lightly with a balanced liquid fertiliser once at mid-growth if plants appear pale. Pinch back growing tips to encourage bushier growth. Remove spent plants before they set seed to control self-seeding.
Companion Planting
Purslane grows well with corn, beans, and cucumbers, which provide light shade. Avoid planting near heavy feeders like brassicas or tomatoes that may compete for nutrients.
Common Pests & Risks
Few serious pests occur in Australian gardens; aphids and slugs may occasionally attack young growth. Control with a strong jet of water or diatomaceous earth. Overwatering can lead to root rot.
Harvesting
Harvest young stems and leaves when plants are 10–15 cm tall, about 4–6 weeks after sowing. Regular picking from the tips encourages bushier regrowth and extends the harvest period.
In the Kitchen
Harvest young stems and leaves for salads, stir-fries, or pickles. Purslane has a mild, slightly sour flavour and is rich in omega-3 fatty acids. Best used fresh; store in the fridge for up to a week.
Troubleshooting
Yellow leaves: overwatering or poor drainage—allow soil to dry between waterings. Stunted growth: cool temperatures—wait for warm weather. Leggy plants: insufficient light—move to full sun. Seedlings damping off: overwatering and lack of air circulation—reduce moisture. Self-seeding out of control: remove flower heads before seed set.