Purslane
HerbPortulaca oleracea
Have seeds for this? Add to inventory →Purslane is a low-growing succulent annual cultivated and foraged worldwide for its thick, fleshy leaves and stems, which have a mild, slightly tangy flavor suited to salads, stir-fries, and pickling. It is one of the richest plant sources of omega-3 fatty acids and thrives in hot, dry conditions that would stress most garden vegetables. Left unmanaged it self-seeds prolifically, but intentional harvesting keeps it productive and controlled all summer.
Native Range
- Origin
- Widely considered native to the Indian subcontinent and the Near East, with the center of diversity likely in South Asia.
- Native Habitat
- Disturbed soils, dry rocky slopes, field margins, and seasonally arid ground from low elevations to moderate altitudes.
- Current Distribution
- Naturalized on every inhabited continent and found in cultivation worldwide; considered a cosmopolitan weed in temperate and tropical regions and a valued culinary plant in Mediterranean, Middle Eastern, South Asian, and East Asian food traditions.
Growing Conditions
Sunlight
Full Sun
Water Needs
Low
Soil
Tolerates any soil including poor, compacted, and dry; pH 5.5–7.5
Spacing
6–12 inches if cultivated; self-seeds freely
Days to Maturity
40–60 days from seed to first harvest; self-sows prolifically
Growing Zones
Thrives in USDA Zones 3 - 11
Companion Planting
When to Plant
Direct Sow
Surface sow after last frost in warm soil; seeds need light and heat to germinate; or allow to self-seed naturally
Harvest
Harvest tender stem tips and leaves as needed; cut and come again throughout summer
Phenology (Natural Timing Cues)
Direct Sow
Purslane germinates only in warm soil and needs light to break dormancy, so sowing too early or burying seed will result in poor germination. Wait until nighttime temperatures are reliably above 50°F and soil feels warm to the touch. In beds where purslane has previously grown, natural self-seeding often makes deliberate sowing unnecessary.
- Soil feels consistently warm at the surface, not just daytime-warm
- Tender annual weeds like lamb's quarters are germinating freely
- Dandelions have finished their main bloom and grass is growing actively
- Nights are reliably above 50°F with no frost in the forecast
Start Dates (Your Location)
Based on your saved growing zone and this plant's timing notes.
Typical Last Frost
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Typical Harvest Window
June to September
Organic Growing Tips
Harvest regularly to prevent unwanted seeding; a single plant can produce tens of thousands of seeds.
Allow a patch to self-seed in a designated area and harvest continuously all summer.
Pickle in brine or vinegar for a nutritious condiment with a long shelf life.
Young plants pulled while weeding can be eaten immediately; never waste purslane.
Common Pests
All pest management in Garden uses safe, organic, non-toxic methods only. No synthetic pesticides, ever.
Taxonomy
- Kingdom
- Plantae
- Family
- Purslane family (Portulacaceae)
- Genus
- Portulaca
- Species
- oleracea
Natural History
Portulaca oleracea is among the oldest recorded food plants, with archaeological evidence of consumption tracing back at least 4,000 years across South Asia and the Near East. The species epithet oleracea - shared with cabbage and other culinary staples - signals its early recognition as a kitchen vegetable. Arab traders spread it across the Mediterranean, where it was documented in medieval herbals and prized by Greek and Roman writers including Dioscorides and Pliny. A dedicated self-seeder with C4 photosynthesis, purslane fixes carbon efficiently under high heat and drought, explaining its global naturalization from roadsides to kitchen gardens across every inhabited continent.
Traditional Use
Purslane appears in traditional materia medica across the ancient Mediterranean, the Middle East, South Asia, and China, recorded consistently for its cooling and moistening qualities in systems that valued these properties in summer complaints. Dioscorides described the plant in De Materia Medica, noting external and internal uses tied to its mucilaginous, succulent nature. Ayurvedic and Unani practitioners documented purslane among cooling herbs applied in contexts of excessive heat.
Parts Noted Historically
Greek and Roman classical medicine, 1st century CE - leaves and juice
Dioscorides recorded purslane leaves and their expressed juice as cooling agents applied to inflamed skin, headaches, and other conditions associated with heat; Pliny the Elder also noted its use in Roman domestic medicine.
Unani and medieval Arab medicine, 9th–13th centuries CE - leaves and seeds
Ibn Sina (Avicenna) catalogued purslane in the Canon of Medicine as a cooling, moist herb, describing its seeds and leaves in contexts of febrile states and as a cooling food in the humoral framework.
Traditional Chinese Medicine, historical - whole herb
Known as ma chi xian in the Chinese pharmacopoeial tradition, purslane was recorded among herbs associated with clearing heat and resolving dampness, appearing in classical texts in contexts related to skin and intestinal conditions.
Purslane is widely eaten as a vegetable without known toxicity; however, the plant contains oxalic acid in moderate amounts, which may be a concern for individuals prone to kidney oxalate stones if consumed in very large quantities. It is botanically distinct from spurges and other toxic look-alikes that occasionally grow in similar habitats.
This information is provided for historical and educational purposes only and is not medical advice. Always consult a qualified healthcare professional before making decisions related to your health.
Morphology (Plant Structure & Identification)
Root System
Shallow, fibrous taproot with a slight fleshy quality; roots are easy to pull cleanly and whole plants can be lifted and eaten or composted quickly without leaving persistent roots that regenerate.
Stem
Prostrate to semi-erect, smooth, succulent, and reddish-purple, branching freely from the base to form dense mats 2–18 inches across; stems snap cleanly when harvested and are fully edible.
Leaves
Paddle-shaped, thick, and waxy with a glossy upper surface; the succulent texture signals water storage that allows the plant to thrive without irrigation. Yellowing or translucent leaves indicate overwatering or waterlogged soil, which is the main cultural problem.
Flowers
Small, five-petaled yellow flowers open only in bright sunlight for a few hours each morning; flowering signals the plant is shifting from vegetative growth to seed set, and regular harvesting delays this transition.
Fruit
Tiny capsule fruits each contain dozens of black, kidney-shaped seeds with exceptional viability; capsules split at maturity and scatter seed widely, so plants should be pulled or cut before seed set if spread needs to be managed.
Known Varieties
Common cultivars worth knowing
- Best for: Fresh salads and garnishes
Golden Purslane
A cultivated form with yellow-green stems and leaves; milder in flavor and visually distinct in salads, selected specifically for culinary use rather than foraged from wild populations.
- Best for: Continuous harvest, self-seeding kitchen garden patches
Green Purslane (common wild type)
The standard green-stemmed form found naturalized worldwide; more vigorous and prolific than golden selections and arguably more nutritious, with higher omega-3 content recorded in some studies.
- Best for: Compact beds and container growing
Tall Green Purslane
An upright cultivated selection bred for more erect growth to roughly 12 inches, making harvest easier and reducing the sprawling mat habit that can smother low companions.
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