Tayabak (Strongylodon macrobotrys)

About Tayabak

Tayabak (Strongylodon macrobotrys) is a woody, evergreen climbing vine endemic to the tropical rainforests of the Philippines, particularly the island of Luzon. It belongs to the legume family, Fabaceae, and grows wild along streams and forest edges where its long stems scramble high into the canopy. Filipinos have long known it as tayabak, while the rest of the world knows it by the name that describes its unforgettable color, the jade vine.

The plant is celebrated for one of the rarest colors found in the natural world: its flowers glow in a cool turquoise to blue-green shade that seems almost artificial. Each bloom is shaped like a curved claw, and dozens of them hang together in pendent clusters (racemes) that can stretch up to 90 centimeters long, dangling beneath a pergola like strings of jade beads. In the wild, these flowers are pollinated by bats, which cling to the sturdy blooms and drink the nectar at night.

Internationally, this plant is known as the jade vine. See our jade vine guide for the English-name version of this care guide.

Sadly, tayabak is now considered endangered in its native habitat. Deforestation has destroyed much of its rainforest home, and the decline of its natural bat pollinators makes it harder for wild populations to reproduce. Cultivating tayabak in home gardens, botanical collections, and eco-parks has become an important way to help conserve this national treasure. It is increasingly grown over pergolas and heavy arbors in the Philippines, where its cascading turquoise flowers draw admiration from gardeners and photographers alike.

Also known as: Jade Vine, Emerald Vine, Turquoise Jade Vine.

Related Species

• Strongylodon macrobotrys, the classic turquoise-flowered tayabak (jade vine)
• Strongylodon lucidus, a related Pacific climber with reddish flowers
• Mucuna bennettii (New Guinea Creeper), an unrelated but similar-looking vine with scarlet claw-shaped flowers, often grown alongside tayabak

How to Plant Tayabak (Jade Vine) in the Philippines

Tayabak can be propagated from fresh seeds or from semi-hardwood cuttings. Seeds are the most natural method but lose viability very quickly, so they must be sown soon after harvesting from a ripe pod. Cuttings offer a faster route to a flowering-size plant but need warmth and high humidity to root. Either way, plan for a strong permanent support before you plant, this is a heavy, vigorous climber.

Propagation Steps

1. Step 1: Source fresh seeds from a ripe pod, or take a semi-hardwood cutting from healthy new growth. Tayabak seeds lose viability quickly, so sow them as soon as possible.
2. Step 2: For seeds, soak them in warm water for 24 hours to soften the hard coat, then sow 2-3 cm deep in a moist, well-draining mix. For cuttings, dip the base in rooting hormone.
3. Step 3: Keep the medium warm (28-32°C) and consistently moist but never waterlogged. Provide bright, filtered light and high humidity.
4. Step 4: Once seedlings or rooted cuttings are established, transplant near a sturdy pergola, arbor, or heavy trellis that can carry the vigorous vine.
5. Step 5: Train the young stems onto the support and water regularly. Expect the first turquoise flower clusters only after the vine matures over several years.

Care Guide

Sunlight

Tayabak thrives in bright, filtered sunlight. In the wild it roots in the shaded, moist forest floor while its stems climb toward the sunlit canopy, so give it a spot where the roots are cool and shaded but the upper growth can reach good light. Full midday sun in the lowland Philippine heat can scorch young leaves, so morning sun with afternoon shade is ideal for establishing plants.

Water

Keep the soil consistently moist but never waterlogged. Tayabak is a rainforest plant and dislikes drying out completely, especially during flowering. Water deeply and regularly during the dry season, and ease back a little during the heaviest rains to avoid soggy roots. Good drainage is essential, the vine hates standing water around its base.

Temperature & Humidity

Ideal temperatures range from 24-34°C, matching the warm lowland Philippine climate the plant evolved in. Tayabak is not frost-tolerant and grows best in tropical, humid conditions. High humidity encourages lush growth and better flowering, so it flourishes in the naturally moist air of Philippine gardens.

Fertilizer

Feed with a balanced fertilizer during the growing season, then switch to a bloom-boosting formula higher in phosphorus and potassium as the vine matures to encourage flowering. As a legume, tayabak fixes some of its own nitrogen, so avoid overfeeding with high-nitrogen fertilizers, which push leafy growth at the expense of flowers. A yearly top-dress of compost around the root zone supports steady growth.

Support / Trellis

This is the most important part of growing tayabak. It is a heavy, vigorous woody climber that can eventually weigh down and collapse a flimsy structure. Provide a strong, permanent support such as a solid pergola, arbor, or heavy-duty metal trellis. An overhead structure is ideal because it lets the long flower clusters hang down freely, showing off their full cascading length.

Pruning

Prune after flowering to control the vine's size and shape and to remove tangled or dead stems. Regular light pruning keeps the plant manageable and directs energy into strong flowering wood. Avoid heavy pruning right before the blooming season, as flowers form on established growth.

Toxicity & Safety

Tayabak is generally considered non-toxic and is not known to be poisonous to humans or common pets. As with any ornamental plant, it is best not to eat the flowers, seeds, or pods, and children and pets should be discouraged from chewing on the vine. Because tayabak is an endangered species, the greatest safety concern is conservation, always source plants and seeds responsibly from reputable growers rather than collecting from the wild.

Common Problems & Solutions

Frequently Asked Questions