Seagrass and water hyacinth are the two natural fibers wholesale buyers ask us about most. Both are gathered, cut, and dried in a similar way, then handwoven into baskets, rugs, and homeware, so it is easy to mix them up. But they grow differently, look different, and suit different products. As a maker that has woven both fibers for over 50 years in Nga Son, Vietnam, here is a clear side by side guide to help you choose the right one for your range.

Key takeaways

Seagrass is a salt water grass with a fine, rope-like fiber that is strong and ranges from green to pale brown.
Water hyacinth is a freshwater plant with a wider, softer fiber in a warm, even brown.
Choose seagrass for structured baskets and items with handles; choose water hyacinth for softer textures and rugs.
Both are natural, undyed, renewable, and biodegradable.

Seagrass vs water hyacinth at a glance

Feature	Seagrass	Water hyacinth
Plant type	Salt water grass, farmed in coastal and mangrove fields	Free-floating freshwater plant from warm tropical rivers
Fiber color	Natural green fading to a cool, pale brown	Warm, even brown
Fiber diameter	Fine, about 0.2 to 0.3 cm	Wider, about 0.8 to 1 cm
Texture and strength	Smooth, tough, rope-like; holds its shape	Softer and thicker, with a gentle sheen
Best for	Structured baskets, baskets with handles, ropes, firmer rugs	Hampers, soft baskets, rugs, relaxed textures
Finish	Natural, undyed	Natural, undyed

Where do seagrass and water hyacinth grow?

Both are fast-growing, water-loving plants, but they live in very different places. Seagrass grows best in salt and muddy water, so it is farmed in coastal and mangrove areas across shallow, salty fields. Water hyacinth is a free-floating plant that grows on the surface of fresh water, thriving in the warm tropical rivers of Vietnam. That difference in habitat is the root of every other difference between the two fibers.

Seagrass growing in coastal fields in Nga Son, Vietnam — Seagrass fields in Nga Son

Harvesting water hyacinth from a freshwater river in Vietnam — Harvesting water hyacinth

How do their colors differ?

After cutting, splitting, and drying, the two fibers settle into different tones. Water hyacinth keeps a warm, even brown. Seagrass holds its natural green for a short time after weaving, then mellows to a cool, pale brown, with the exact shade depending on drying time and temperature. Neither fiber is dyed, so what you see is the natural color of the plant.

How do the fibers compare in size and strength?

Seagrass fiber is fine, about 0.2 to 0.3 cm across, and becomes solid, tough, and flexible once processed. That strength is why it is woven into ropes and baskets with handles that need to hold their shape. Water hyacinth is broader and softer, roughly 0.8 to 1 cm across, with a gentle sheen. Woven up, it reads as a thicker, softer texture with a very different look and feel.

Close-up of natural seagrass fiber — Seagrass fiber

Close-up of natural water hyacinth fiber — Water hyacinth fiber

Which fiber should you choose for your products?

If you need structure, durability, and clean lines, such as storage baskets, baskets with handles, or firmer rugs, seagrass is usually the better fit. If you want warmth, softness, and a relaxed look, such as laundry hampers, soft baskets, and cozy rugs, water hyacinth tends to win. Many of our best-selling ranges use both, pairing a seagrass frame with a water hyacinth body for contrast. If you are weighing a rug specifically, our guide to the water hyacinth rug goes deeper.

Handwoven seagrass storage basket — Seagrass storage basket

Handwoven water hyacinth hamper basket — Water hyacinth hamper basket

Can you combine seagrass and water hyacinth?

Yes, and the combination is one of the things buyers come to us for. Used together, the fine seagrass weave and the softer water hyacinth body bring contrast and harmony to a single piece. You can see the range across our product catalog, where many baskets and rugs blend the two fibers.

Why source seagrass and water hyacinth from Nga Son, Vietnam?

Nga Son in northern Vietnam is one of the country’s oldest seagrass weaving villages, and both fibers grow well in the region’s climate. Viet Trang weaves seagrass and water hyacinth at a 9,000 sqm workshop with 500 to 600 local artisans, in natural hues only, and is audited to SMETA and BSCI standards. If you want the background on the village and our process, see seagrass baskets from Vietnam and our water hyacinth production.

Frequently asked questions

What is water hyacinth as a material?

Water hyacinth is a freshwater plant whose stems are dried into a soft, warm-brown natural fiber. It is handwoven into baskets, hampers and rugs, with no synthetic dyes.

Is seagrass stronger than water hyacinth?

Seagrass fiber is finer and tougher, so it holds its shape well and suits structured baskets and items with handles. Water hyacinth is softer and thicker, which is better for relaxed textures.

Is seagrass or water hyacinth better for rugs?

Both make excellent rugs. Water hyacinth gives a softer, warmer feel underfoot, while seagrass gives a firmer, harder-wearing weave. Many buyers stock both.