Bawang Dayak (Eleutherine bulbosa)
Regular price $29.95Medicinal Wonder Herb from Borneo
Bawang Dayak (Eleutherine bulbosa), commonly known as Dayak Onion, Eleutherine, Sabrang Onion, or Borneo Blood Onion, is a medicinal herb native to the tropical rainforests of Borneo. This small, bulbous plant has been used in traditional medicine by the Dayak people of Borneo for centuries and is prized for its numerous traditional health benefits. Bawang Dayak belongs to the Iridaceae family and is easy to grow in tropical and subtropical climates, making it a valuable addition to medicinal herb gardens.
The plant grows about 1–2 ft. tall and produces long, narrow green leaves that resemble onion or garlic foliage, growing directly from its bulbous base. The small reddish bulbs are the main part of the plant used medicinally and contain bioactive compounds including flavonoids, tannins, and saponins. Bawang Dayak is traditionally prepared as herbal teas, tinctures, or extracts and is valued for its antioxidant, antimicrobial, and anti-inflammatory properties.
Cultural & Medicinal Significance
Bawang Dayak is highly valued in traditional medicine, particularly in Indonesia and Malaysia. The Dayak people of Borneo have traditionally used the bulbs for a wide range of health purposes, including supporting healthy blood pressure, blood sugar, digestion, respiratory health, and women's reproductive health. The plant has also traditionally been used to help reduce inflammation and support the immune system.
The reddish bulbs are rich in naturally occurring compounds such as flavonoids, tannins, and saponins, which contribute to the plant's medicinal reputation. Its antioxidant properties are traditionally valued for helping combat free radicals, while its antimicrobial properties have also contributed to its use in traditional herbal preparations. Modern research continues to investigate these compounds and their biological activity.
Why Grow Bawang Dayak?
- Grow a rare and fascinating medicinal herb with centuries of traditional use among the Dayak people of Borneo.
- Harvest small reddish bulbs rich in naturally occurring flavonoids, tannins, and saponins.
- Prepare the bulbs as traditional herbal teas, tinctures, or extracts.
- Add a compact 1–2 ft. medicinal herb to your garden, home apothecary, or container collection.
- Enjoy an easy-to-grow tropical and subtropical herb prized for its antioxidant, antimicrobial, and anti-inflammatory properties.
Growing Tips
Bawang Dayak thrives in warm, tropical to subtropical climates and is best suited to USDA Zones 9–11. It prefers high humidity and consistent warmth, but can be grown in containers in cooler climates and moved indoors during winter. Plant in spring or early summer once the soil has warmed and there is no risk of frost. Choose a full-sun to partially shaded location, with some afternoon shade especially helpful in hotter tropical climates. Prepare fertile, well-draining soil rich in organic matter, ideally with a slightly acidic to neutral pH of 6.0–7.0. Loosen the soil before planting and mix in compost or aged manure to improve fertility, drainage, and moisture retention. Space plants about 12 inches apart to allow room for their small, spreading growth habit.
Water regularly to keep the soil consistently moist but never waterlogged, especially during the active growing season. Apply a balanced, slow-release fertilizer in early spring and again in mid-summer to encourage healthy bulb development, and supplement with organic compost or well-rotted manure as needed. Bawang Dayak is relatively low maintenance and requires little pruning; remove damaged or yellowing leaves to keep plants tidy. Mulch around the base to retain moisture and suppress weeds. For container growing, use a large container with proper drainage and a well-draining potting mix. Bawang Dayak is generally pest and disease resistant, though aphids and spider mites may occasionally appear and can be managed with neem oil or insecticidal soap. Avoid poorly draining soil, which can lead to root rot and other fungal issues.
The bulbs can be harvested year-round once the plant is established, typically after 6–12 months of growth. Carefully dig up the bulbs, taking care not to damage the plant. The bulbs can be used fresh or dried for traditional herbal teas, tinctures, or extracts, or ground into a powder for capsules and other traditional remedies. Bawang Dayak can be propagated from bulbs or seeds.
Quick Facts
| Attribute | Details |
|---|---|
| Botanical Name | Eleutherine bulbosa |
| Common Names | Bawang Dayak, Dayak Onion, Eleutherine, Sabrang Onion, Borneo Blood Onion |
| Family | Iridaceae |
| Origin | Borneo, Southeast Asia |
| Plant Type | Perennial Medicinal Herb |
| Life Cycle | Perennial |
| Mature Size | 1–2 ft. tall, 1 ft. wide |
| Growth Habit | Small, spreading, bulbous herb |
| Growth Rate | Moderate |
| Light Requirements | Full Sun, Part Shade |
| Soil & Moisture | Well-draining, fertile soil; rich in organic matter; consistent moisture |
| Ideal Soil pH | 6.0–7.0 |
| Water Needs | Moderate; keep consistently moist, avoid waterlogging |
| Climate | Warm tropical to subtropical; high humidity and consistent warmth |
| USDA Zones | 9–11 |
| Indoor Growing | Yes; containers can be moved indoors in cooler climates |
| Spacing | 12 in. |
| Self-Fertile | Yes |
| Propagation | Bulbs, seeds |
| Harvest Season | Year-round once established |
| Time to Harvest | Approximately 6–12 months |
| Primary Harvest | Bulbs |
| Harvest Method | Carefully dig bulbs from the soil |
| Traditional Preparations | Fresh or dried bulbs, herbal teas, tinctures, extracts, powder, capsules |
| Fertilizer | Balanced slow-release fertilizer in early spring and mid-summer |
| Pests | Aphids, spider mites |
| Disease Concerns | Root rot and fungal issues from poorly draining soil |
| Maintenance | Low maintenance; remove damaged or yellowing leaves |
| Container Growing | Yes; large container with drainage and well-draining potting mix |
Health Benefits
Bawang Dayak is known for its high concentration of antioxidants, which help combat free radicals and reduce oxidative stress. The plant is traditionally used to support cardiovascular health by lowering blood pressure and reducing cholesterol levels. Its anti-inflammatory properties make it beneficial for treating arthritis and other inflammatory conditions. The plant is also used to regulate blood sugar levels, making it popular for managing diabetes. Additionally, Bawang Dayak is believed to support women's reproductive health and improve digestion.
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