Ludwigia Ovalis

About Ludwigia Ovalis

Ludwigia Ovalis is a stunning stem plant admired for its vibrant pink, orange, and red foliage that adds striking colour and contrast to planted aquariums. Native to East Asia, this elegant species features rounded, oval-shaped leaves that transition from bright green to rich shades of copper, rose, and crimson as lighting intensity and nutrient availability increase.

Unlike many red aquarium plants, Ludwigia Ovalis develops broad, colourful leaves that create a bold visual impact in aquascapes. When grown in dense groups, it forms lush bushes of vibrant foliage, making it an excellent focal point for Dutch-style aquariums, Nature Aquariums, and high-tech planted tanks.

Ludwigia Ovalis thrives in nutrient-rich aquariums with moderate to high lighting. While it can grow without CO₂ injection, supplemental CO₂, comprehensive fertilisation, and stable water conditions significantly improve growth, leaf size, and colour intensity. Regular pruning encourages side shoots and bushier growth, allowing aquascapers to create dense, colourful displays.

Its relatively fast growth also helps absorb excess nutrients from the water column, contributing to improved water quality and reduced algae growth.

Colourful, versatile, and rewarding to grow, Ludwigia Ovalis is an excellent choice for aquarists looking to introduce vibrant pink and red tones into their freshwater aquascape.

Quick Care Guide

Scientific Name

Ludwigia ovalis

Common Name

Ludwigia Ovalis

Origin

East Asia

Plant Type

Stem Plant

Growth Rate

Moderate to Fast

Difficulty

Easy to Intermediate

Lighting

Moderate to High (High lighting enhances colour)

CO₂ Required

No (Highly Recommended)

Temperature

20–28°C

pH

6.0–7.5

Water Hardness

2–12 dGH

Placement

Midground to Background

Suitable For

Nature aquariums, Dutch aquascapes, planted aquariums, and freshwater community tanks

Frequently Asked Questions

Does Ludwigia Ovalis require CO₂?

No. It grows well without CO₂, but supplemental CO₂ produces faster growth, larger leaves, and much stronger pink and red colouration.

Why isn't my Ludwigia Ovalis turning pink or red?

Strong lighting, stable CO₂, and adequate nutrients—especially iron and trace elements—are essential for vibrant colour development. Under lower light, the leaves may remain green or bronze.

How do I propagate Ludwigia Ovalis?

Trim healthy stems and replant the cuttings into the substrate. They will quickly develop new roots from the stem nodes.

Is Ludwigia Ovalis suitable for beginners?

Yes. It is relatively hardy and adaptable, making it a great choice for beginners, although its best colours are achieved in high-tech planted aquariums.

How often should I trim Ludwigia Ovalis?

Regular trimming every few weeks encourages compact, bushy growth and prevents the lower stems from becoming shaded.

Common Mistakes

Insufficient lighting

Low light results in green foliage, elongated stems, and reduced colour intensity.

Lack of nutrients

Regular fertilisation with macronutrients, micronutrients, and iron is important for healthy growth and vibrant colours.

Inconsistent CO₂

Fluctuating CO₂ levels can slow growth and encourage algae. Stable supplementation produces the best results.

Planting stems too densely

Leave space between stems to improve water circulation and allow light to reach the lower leaves.

Neglecting regular pruning

Frequent trimming encourages branching, producing fuller, healthier, and more attractive plant groups.