1. Introduction
Tharai Pasalai Keerai (Portulaca oleracea) is a small green plant that grows widely around the world. In Tamil Nadu, it is valued as one of the spinach varieties. The term “Pasalai” refers to the soft and tender nature of its leaves. Rich in water content, its leaves, stems, and seeds are all edible. In traditional medicine, Tharai Pasalai has been used for centuries as a remedy for various ailments.
It not only holds an important place in Tamil cuisine but is also an easy and economical crop for farmers because it can grow even in dry soil conditions.
2. Botanical Description
- Botanical Name: Portulaca oleracea
- Family: Portulacaceae
- Leaves: Thick, succulent, small, oval-shaped green leaves.
- Stem: Slender, reddish or green in color, spreads along the ground.
- Flowers: Small, yellow in color, bloom in the morning.
- Seeds: Tiny black seeds, produced in large quantities.
- Roots: Fibrous roots, spreading 10–15 cm deep into the soil.
3. Soil and Climate
- Climate: Thrives in tropical and subtropical regions.
- Soil Types: Fertile sandy-loam soil is best.
- pH Range: 5.5 – 7.5
- Water Requirement: Requires minimal water, but yield improves with regular irrigation.
- Best Season: Summer and rainy season.
4. Cultivation Methods
- Sowing: Seeds can be broadcast directly onto the soil.
- Stem Propagation: Can be grown by planting sprouted stems.
- Growth Period: Ready for harvest in 20–25 days.
- Fertilization: Organic manures like farmyard manure, compost, and panchagavya are best.
- Plant Protection: Pest attacks are minimal, though leaf borers and curl caterpillars may occasionally appear.
5. Nutritional Information
| Nutrient | Amount | Health Benefits |
| Energy | 16 kcal | Low-calorie food, supports weight control |
| Carbohydrates | 3.4 g | Provides energy |
| Protein | 1.3 g | Muscle growth and repair |
| Fat | 0.1 g | Low fat – heart friendly |
| Fiber | 2.1 g | Improves digestion |
| Calcium | 65 mg | Strong bones and teeth |
| Iron | 1.99 mg | Prevents anemia |
| Magnesium | 68 mg | Supports nerve and muscle function |
| Vitamin A | 1320 IU | Eye and skin health |
| Vitamin C | 21 mg | Boosts immunity |
| Omega-3 Fatty Acids | 350 mg | Supports brain and heart health |
6. Medicinal Properties
In Traditional Medicine:
- Reduces fever
- Purifies blood
- Relieves constipation
- Used as a topical application for skin ailments
In Modern Medicine:
- Antioxidant: Protects cells from damage.
- Anti-inflammatory: Reduces swelling in the body.
- Omega-3 Source: Lowers risk of heart disease.
- Glycemic Control: Helps regulate blood sugar for diabetics.
7. Culinary Uses
- Paruppu Keerai Kuzhambu (dal-spinach curry)
- Tharai Pasalai Stir-fry
- Keerai Kanji (rice porridge with greens)
- Soups and Broths
- Salad – eaten raw with lemon juice and salt
8. Age-wise Benefits
- Children: Supports bone growth, prevents anemia.
- Pregnant Women: Rich in iron and fiber.
- Elderly: Supports heart health and reduces joint pain.
9. Economic Importance
- Market Price: ₹20 to ₹40 per kg.
- Commercial Value: High yield in a short period.
- Export: Popular in Asian, African, and Middle Eastern markets.
10. Environmental Role
- Improves soil fertility and organic content.
- Serves as a food source for bees and small insects.
- Helps retain soil moisture.
11. Conclusion
Tharai Pasalai Keerai is a nutritious, easily grown, and medicinally valuable leafy green. Including it in our daily diet not only improves health but also boosts the income of farmers.