Horizon - Xyris sp Red

Horizon Xyris sp. ‘Red’ – Tissue Culture (TC)

Xyris sp. ‘Red’ is a rare and highly distinctive aquatic plant, prized for its striking fan-shaped growth, narrow upright leaves and potential for beautiful reddish-bronze to deep red colouration. Its unusual structure makes it an exceptional feature plant for aquascapers looking to introduce something different into their planted aquariums.

Unlike traditional stem plants, Xyris sp. ‘Red’ develops a compact rosette of slender, upright leaves arranged in an elegant fan-like formation. Under optimal conditions, particularly strong lighting, stable CO₂ and balanced nutrition, the foliage can develop attractive red tones. In lower lighting conditions, the plant generally remains greener.

As the plant matures, its fan-shaped structure becomes more pronounced, creating an eye-catching architectural feature in the foreground or midground of an aquascape.

Originally associated with wetland habitats in the southern United States, Xyris sp. ‘Red’ is a relatively recent addition to the aquascaping hobby and is especially appealing to collectors and experienced aquascapers.

Supplied by Horizon Labs in tissue culture (TC) form, this plant is cultivated under sterile laboratory conditions, providing a clean start without introducing unwanted snails, algae or pests.

Plant Information

• Scientific name: Xyris sp. ‘Red’ (often identified in the hobby as Xyris difformis)

• Family: Xyridaceae

• Brand: Horizon Labs

• Form: Tissue Culture (TC)

• Origin: Southern United States (reported for Xyris difformis)

• Growth rate: Slow

• Difficulty: Moderate to advanced

• Placement: Foreground to midground

• Mature height: Approximately 10–15 cm, potentially taller under favourable conditions

• Light: High lighting recommended for optimal growth and red colouration

• CO₂: Strongly recommended

• Temperature: Approximately 22–28°C

• pH: Approximately 5.5–6.8 preferred

• Water hardness: Soft water preferred

• Substrate: Nutrient-rich aquasoil recommended

• Propagation: Daughter plants / basal offsets

• Aquascaping use: Feature planting, collector aquariums, Dutch-style layouts and high-tech aquascapes

Why We Love It

Xyris sp. ‘Red’ is a true collector's plant that offers something completely different from traditional red aquarium plants.

Its elegant, fan-shaped growth and upright foliage create a distinctive architectural appearance, while its ability to develop beautiful reddish tones under suitable conditions makes it particularly desirable.

Unlike fast-growing red stem plants that require regular trimming, Xyris develops slowly into a structured rosette, making it an excellent choice for carefully planned aquascapes where shape, texture and colour are equally important.

Tissue Culture Preparation & Planting

1. Carefully remove the plants from the tissue culture cup.

2. Gently rinse away all nutrient gel using clean aquarium water.

3. Separate the plantlets carefully, avoiding damage to the delicate roots and growing points.

4. Plant each portion directly into a nutrient-rich aquarium substrate, keeping the crown above the substrate.

5. Provide strong, consistent lighting and stable CO₂ to encourage healthy submerged growth.

6. Avoid repeatedly uprooting or repositioning the plants once established.

Important: Tissue-cultured Xyris sp. ‘Red’ may initially display greener foliage. The characteristic red colouration generally develops as the plant matures under suitable aquarium conditions. Strong lighting, stable water parameters and patience are essential for achieving its best appearance.

Art of Aqua Tip

For the best results, position Xyris sp. ‘Red’ where it receives unobstructed light, preferably against a background of fine-leaved green plants or contrasting hardscape.

Its upright fan-shaped foliage creates beautiful contrast against carpeting plants and softer, flowing stem plants.

Be patient! Xyris sp. ‘Red’ is naturally slow growing, and small tissue-cultured plantlets may take several months to develop their mature structure and colouration.

A note for Art of Aqua

I would classify this plant as Moderate to Advanced, rather than Easy, on your website.

Although some experienced growers report success under less demanding conditions, strong lighting, soft water, stable CO₂ and a nutrient-rich substrate consistently produce the best results.

I would also retain Xyris sp. ‘Red’ as the product name rather than definitively identifying it as Xyris difformis, unless Horizon Labs confirms that identification.

This is the type of unusual plant I would highlight as a collector's feature plant in the Art of Aqua range, particularly for customers interested in high-tech aquascaping and less commonly available species.