Eusideroxylon zwageri seeds (Ulin Tree)

Starts from $5

Seeds Availability

The price listed above is for 1 seed, unless stated otherwise.
Seed packet options are available for collectors who want larger quantities and better value.
We include bonus seeds with every purchase whenever possible.
Our nursery prioritizes fresh seed stock to provide higher viability and better germination potential.
Upon request, we can germinate seeds for customers without additional fees before shipment.
Looking for species or quantities not listed on the shop page? Contact us directly to customize your order based on current availability.

Seed Quality Standards

Collector-grade seeds
A rare plant species valued for its unique characteristics and limited availability. Carefully sourced and handled to preserve freshness and natural viability. Limited availability due to seasonal seed production.

Quality approach

Fresh seeds handled to preserve viability
Germination tested in-house
Pre-germination available (not applicable for long-cycle species)

Before you order

Germination depends on proper conditions and care
Export processing: 9–13 working days
Ships internationally from Indonesia
Import regulations and taxes are the buyer’s responsibility

Ordering, Shipping & Policy Information

We protect customer information securely and use personal data only for order processing, communication, and shipping purposes.
By placing an order, customers agree to our policies regarding product availability, payment, plant import regulations, and international shipping procedures.
We ship fresh seeds, plants, and botanical products worldwide from Indonesia with careful export preparation and phytosanitary support when required.
Our FAQ section explains common questions about seed freshness, germination, stock availability, shipping, export documents, and custom orders.

10 seeds

pieces

20 seeds

pieces

50 seeds

pieces

Species Info

Botanical Profile

Eusideroxylon zwageri is a tropical evergreen hardwood tree in the Lauraceae family, famous for its extremely durable timber.

Scientific Name

Eusideroxylon zwageri Teijsm. & Binn. (commonly known as Bornean Ironwood)

Local Name

Ulin, Belian, Bornean Ironwood

Native Habitat

Native to Borneo and Sumatra. It grows in humid tropical rainforests with high rainfall, warm temperatures, and well-draining soils.

Germination Difficulty

Difficult — seeds germinate slowly and require fresh sowing, high humidity, and stable warmth.

Germination Timeframe

Usually 2–6 months under tropical conditions.

Growing Condition

Prefers full sun to partial shade, fertile well-draining soil, high humidity, and temperatures between 24–32°C. Young seedlings require regular moisture and protection from extreme dryness.

Collector Significance

Collectors value this species for its rare conservation status, extremely hard timber, and importance in tropical forestry collections.

General Information

These seeds are rare and often hard to find online. Many available seeds have low viability due to long storage, but we provide fresh seeds with higher germination potential.

Rare Seeds offers a wide selection of rare ornamental plant seeds. You can explore other species on our shop page. We are available to help you choose suitable seeds based on your experience—contact us at info@rareseeds.id or via WhatsApp for custom orders.

All orders are shipped with a free Phytosanitary Certificate. We use secure packaging to ensure seeds arrive in good condition. Rare Seeds supplies seeds to various plant sellers and collectors.