Species description

Care, breeding and tankmates

Plant profile

Placement

Background

This plant is incredibly versatile and can be placed in the midground or background, depending on how often it is trimmed. It looks best when planted in dense groups of several stems, creating a solid block of color. It can also be grown emersed on the edges of paludariums where it forms creeping mats.

Botanical form

Stem

This species features oppositely arranged, slightly rounded to oval leaves along a somewhat delicate stem. Under intense lighting, the entire plant—from the leaves to the stem—can turn a striking blood red. When grown emersed, the leaves remain green and the plant often produces small, inconspicuous flowers in the leaf axils.

Growth

Fast

It exhibits a fast growth rate, quickly reaching the surface if left unpruned. In setups with high light and CO2, its growth can be explosive, requiring weekly maintenance. Even in lower light conditions, it maintains a steady, though greener, upward progression.

Substrate

Medium

Prefers a fertile, moderately rich substrate to support its creeping growth habit and extensive root network. A substrate depth of 1.5 to 2 inches, preferably composed of aqua soil or enriched sand, is recommended for strong root establishment. The addition of root tabs can significantly boost its growth rate and enhance the deep red coloration of its foliage.

Column fertilization

Optional

Liquid fertilization is beneficial but not strictly required if the tank has a healthy fish population. Regular dosing of a comprehensive fertilizer ensures the leaves remain large and brightly colored. Iron supplements are the most reliable way to force the plant to express its deepest red pigments.

Root fertilization

Optional

While it draws many nutrients from the water, it also develops a strong root system. A nutrient-rich substrate or the addition of root tabs will promote thicker, more robust stems that are less prone to breakage. Good substrate nutrition also helps the plant recover faster after heavy pruning.

Trimming

Occasional

Frequent trimming is essential to prevent it from overshadowing its own lower sections, which will drop leaves if shaded. Topping and replanting is the standard method for maintaining a dense, colorful bush. The remaining lower stems will quickly sprout new shoots, filling out the group.

Propagation

Cuttings

Propagation is incredibly simple via stem cuttings. Any portion of the stem, whether a top cutting or a middle section with a node, will root when planted in the substrate. It can also be allowed to float, where it will rapidly sprout roots and side shoots.

Sensitivity

Moderate

Ludwigia palustris is notoriously hardy and forgiving of fluctuating water parameters. It tolerates both soft and hard water, as well as a wide range of temperatures. Its only real sensitivity is to extreme shading, which causes it to shed leaves and lose its red coloration entirely.

Layout role

Background

It is widely used as a reliable, bright red background or midground filler in Dutch and nature-style aquariums. Its intense color provides a stunning contrast against green carpeting plants or grey rocks. Because of its ease of care, it is one of the most accessible red plants for aquascapers of all skill levels.