Ludwigia perennis

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

It is best suited for the midground or background of the aquarium. When planted in groups, its striking color provides a strong focal point. It contrasts effectively with bright green, finely textured plants.

Botanical form

Stem

It features thick, upright stems with alternate, lanceolate leaves. The leaves transition from olive green to a deep, wine red or purple depending on the light intensity. The stems are relatively rigid, giving the plant a strong vertical presence.

Growth

Medium

Its growth rate is moderate compared to other Ludwigia species. Under high light and CO2, it grows steadily but rarely becomes unmanageable. This makes it easier to maintain in a structured aquascape.

Substrate

High

Ludwigia perennis has a high demand for nutrients and requires a deeply enriched substrate, ideally a high-quality aqua soil. Its roots pull heavily from the substrate to fuel its striking foliage and thick stems, meaning iron and micronutrients in the soil are highly beneficial. A deeper substrate layer of around 2 to 3 inches provides the necessary structural support for its towering vertical growth.

Column fertilization

Recommended

Consistent dosing of liquid fertilizers, particularly those rich in iron and trace elements, is essential. Adequate nitrate and phosphate levels must also be maintained to prevent stunted growth. A comprehensive fertilization routine is key to its vibrant appearance.

Root fertilization

Required

A fertile, nutrient-rich substrate strongly supports its growth. The plant develops a substantial root system that benefits from root tabs or a high-quality aquasoil. Good root nutrition results in thicker stems and larger, more colorful leaves.

Trimming

Regular

Trim the plant by cutting the stem above a node; this encourages side shoots and a bushier appearance. The severed tops can be replanted to create a denser grouping. Avoid shading the lower portions, as this can cause the lower leaves to drop off.

Propagation

Cuttings

Propagation is achieved through stem cuttings. Snip a healthy shoot and plant it directly into the substrate. Provide adequate light and nutrients to ensure the cutting establishes a strong root system.

Sensitivity

Moderate

It is sensitive to low light and inadequate CO2, which will cause it to lose its red color and drop its lower leaves. Sudden changes in water parameters can also trigger leaf melt. It requires stable, high-quality conditions to thrive.

Layout role

Midground, accent, group

It acts as a dramatic color accent in the aquarium, drawing the eye with its deep red hues. It is often used in Dutch-style aquascapes to create strong visual impact. Its upright, structured form adds architectural interest to the layout.