What is longevity spinach?
Longevity spinach, scientifically known as Gynura procumbens, is an herbaceous perennial vine belonging to the Asteraceae family, which also includes sunflowers and daisies. Native to tropical regions of Asia and Africa, it is often referred to by other names, including 'cholesterol spinach' and 'sambung nyawa'. Unlike common spinach (Spinacia oleracea), this plant thrives in warm climates and does not bolt (go to seed) in the summer heat, making it a reliable green for year-round harvesting in USDA zones 9–11. Its leaves are round, fleshy, and semi-succulent, growing on a sprawling vine that can be managed with regular harvesting.
How to eat longevity spinach
The versatility of longevity spinach is one of its most appealing features. The leaves and young stems are edible and can be prepared in various ways to suit different tastes and dishes. For the best texture and flavor, it is recommended to harvest the young, tender leaves.
Here are some of the most common culinary uses:
- Raw: Young, tender leaves can be added to salads for a fresh, crisp, and slightly zesty flavor. They also blend easily into green smoothies, where their mild taste won't overpower other ingredients.
- Cooked: Longevity spinach can be used as a potherb, similar to how you would use regular spinach or kale. It can be steamed, sautéed, or added to soups and stews. Cooking softens the leaves and can reduce the slight bitterness some people experience with raw leaves. In cooked dishes, it develops a texture similar to okra or Malabar spinach, with a slight mucilaginous quality.
- Other preparations: In some traditions, the leaves are dried and steeped to make a tea. The young, tender stems can also be cooked and used like celery in soups or stews.
Longevity spinach vs. regular spinach
While they share a common name, longevity spinach and regular spinach are distinctly different plants with unique characteristics. Here is a comparison to help you understand the differences.
| Feature | Longevity Spinach (Gynura procumbens) | Regular Spinach (Spinacia oleracea) |
|---|---|---|
| Botanical Family | Asteraceae (Sunflower family) | Amaranthaceae (Amaranth family) |
| Growth Habit | Perennial, sprawling vine | Annual, upright growth |
| Heat Tolerance | Thrives in heat; does not bolt in summer | Sensitive to heat; bolts quickly in warm weather |
| Texture | Fleshy and semi-succulent, can become viscous when cooked | Tender and delicate, wilts down significantly when cooked |
| Flavor | Mild, slightly zesty, and earthy | Mild, earthy, and sweet |
| Hardiness Zone | Perennial in zones 9–11, otherwise grown as an annual | Grown as a cool-season annual in most climates |
| Propagation | Easily propagated from cuttings | Grown from seed |
Health benefits and medicinal uses
Longevity spinach is known not only for its culinary uses but also for its impressive health-promoting properties. Pre-clinical studies have investigated its potential medicinal benefits, which include:
- Cardio-metabolic support: Studies suggest it may help regulate blood sugar, lower cholesterol levels, and support healthy blood pressure.
- Antioxidant and anti-inflammatory properties: The plant is rich in flavonoids and polyphenols, which act as powerful antioxidants and may help reduce inflammation in the body.
- Immune system boost: Packed with vitamins A, C, and E, as well as minerals like iron and calcium, it helps strengthen the immune system and protect cells from damage.
- Potential anti-cancer properties: Some research suggests that compounds in longevity spinach may inhibit the growth of certain cancer cells.
Important precautions and safety
For culinary consumption, longevity spinach is generally considered safe. However, there are some precautions to consider, especially when taking high-dose extracts or supplements.
- High-dose extracts: Individuals taking blood pressure or diabetes medication should consult a healthcare provider before using high-dose extracts, as they could have additive effects.
- Allergies: As a member of the Asteraceae family, it may cause allergic reactions in people with sensitivities to plants like ragweed.
- Interaction with blood thinners: Like other greens, longevity spinach contains vitamin K, which plays a role in blood clotting. Individuals on blood-thinning medication should monitor their intake.
Conclusion
In summary, longevity spinach (Gynura procumbens) is a completely edible and highly nutritious perennial green that serves as an excellent, heat-tolerant alternative to common spinach. It offers a mild, pleasant flavor and can be used both raw and cooked in a variety of dishes, from salads and smoothies to soups and stir-fries. Beyond its culinary appeal, this plant is recognized for its impressive medicinal properties, including antioxidant, anti-inflammatory, and cardio-metabolic benefits. Whether you are a gardener looking for a reliable green or a home cook seeking a nutritious and flavorful ingredient, longevity spinach is a valuable and tasty addition to any diet. For more detailed information on the plant's characteristics and medicinal uses, you can refer to the National Parks Board in Singapore.
How to grow longevity spinach
Growing longevity spinach is a straightforward process, especially since it propagates easily from cuttings. It thrives in well-draining soil and prefers full sun to partial shade. In warmer climates (zones 9–11), it grows vigorously outdoors year-round, while in cooler climates, it can be grown as an annual or brought inside as a potted plant during winter. Regular harvesting is key to keeping its sprawling growth habit in check and encouraging bushier foliage. Keep the soil consistently moist, as the plant can wilt when thirsty.
How to harvest longevity spinach
Harvesting longevity spinach is simple and can be done frequently throughout the growing season. The best method is to snip the growing tips of the vines once the plant has reached about 8 inches in height. This not only provides you with the most tender leaves but also encourages the plant to branch out, resulting in a bushier, more productive plant. You can also harvest individual leaves as needed. Harvested leaves can be stored in the refrigerator or frozen after washing and drying.
Longevity spinach recipes
Longevity spinach's mild flavor makes it a versatile ingredient in many recipes. Here are some ideas:
- Fresh Salads: Use young leaves in place of or in addition to other salad greens.
- Quick Stir-Fry: Flash-cook the leaves with garlic and sesame oil for a nutritious side dish.
- Hearty Soups: Add chopped leaves and stems to soups and stews for extra nutrients and texture.
- Nutrient-Packed Smoothies: Blend a handful of leaves with fruit, ginger, and coconut water.
- Blanched Side Dish: Blanch the leaves and toss with a simple sesame dressing, similar to a Japanese goma ae.
