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Ludwigia Palustris (Ludwigia palustris) Care Guide

A versatile and hardy stem plant whose leaves range from olive green to deep red depending on light intensity.

Compiled by Aquairi from published sources · Published · Updated

Overview

Ludwigia palustris is an aquatic plant in the family Onagraceae. A versatile and hardy stem plant whose leaves range from olive green to deep red depending on light intensity. Very forgiving of varying conditions and an excellent choice for beginners who want a touch of color in their aquarium.

Taxonomy

  • Family: Onagraceae
  • Genus: Ludwigia
  • Scientific name: Ludwigia palustris
  • Other names: Marsh Seedbox, Water Purslane

Habitat

Has a circumpolar distribution across North and South America, Africa, Asia and Europe; naturalised in Hawaii, Australia and New Zealand. Grows as a low mat-forming herb on muddy banks with reddish semi-succulent stems 10-40 cm long.

Growth requirements

  • Light: medium (≈50-80 PAR at substrate)
  • CO2: optional (CO2 improves growth and coloration)
  • Temperature: 18-28 °C
  • pH: 6-7.5
  • GH: 3-15 °dGH
  • Substrate: nutrient-rich aquasoil or fertilised gravel
  • Nutrient demand: low
  • Growth rate: medium
  • Difficulty: beginner

Placement

  • Recommended placement: midground
  • Maximum height: 30 cm
  • Trim every: 14 days

Propagation

In cultivation the plant is propagated by stem cuttings (replant the upper portion after trimming).

Propagating Ludwigia 'Mini Super Red' from Cuttings

Overview

Ludwigia 'Mini Super Red' is a compact selection of Ludwigia palustris. The trade names 'Mini Super Red', 'Super Red' and Ludwigia sp. 'red' all refer to the same easy plant, which develops a nice red colour far more readily than fussier red species.

Because it is just a selected form of L. palustris, it propagates identically to the parent species: by stem cuttings. The parent is a circumpolar perennial whose semi-succulent reddish stems reach 10-40 cm and root at the nodes as they spread.

Propagation Method (Cuttings)

This plant branches willingly and is easily replanted and propagated through the cut-offs. Topping a stem removes the growing tip, which pushes the plant to produce side shoots lower down, while the removed top roots quickly to become a new plant.

Step-by-Step

  1. Cut a healthy stem at a node some distance below the final height you want, using clean scissors.
  2. Trim the top 5-10 cm and strip the lower leaves so the bare stem can be buried cleanly.
  3. Stagger your cuts shorter at the front and taller at the back to build a natural slope.
  4. Replant the cut tops into the nutrient-rich substrate, spacing them so each can bush out.
  5. As new shoots appear at the base of the cut stems, remove any outliers that break the slope.

Conditions for Healthy Growth

Mini Super Red grows even in lower light (around 40 umol PAR) but 70-80 umol PAR or more gives better colour and more side shoots. It can be grown without CO2 injection, though CO2 improves colouration, and it is not fussy about water parameters. Nutrients can be supplied at the root zone or in the water column.

Trimming & Maintenance

Trim roughly every two weeks once the group fills in. Cut off outlying shoots that do not match the slope of the cluster; over time this produces tidy, dense red clusters. The emersed grown form looks different from the submersed form, so newly planted tops need a short adaptation period under water.

Propagating Ludwigia Palustris from Cuttings

Overview

Ludwigia palustris, the marsh seedbox, is a circumpolar stem plant of the family Onagraceae that occurs naturally across North America, South America, Africa, Asia and Europe. In the wild its semi-succulent reddish stems reach roughly 10 to 40 cm and form sprawling mats, rooting at the nodes as they spread. Its oval leaves are often reddish-green, shifting toward duller green or vivid red depending on conditions, which makes it a forgiving way to add colour to a planted tank.

Because it is an aquatic to semiaquatic perennial that grows both emersed and submersed, it adapts readily after replanting. This plant spreads asexually, so cuttings are the standard and most reliable way to multiply your stock.

Propagation Method (Cuttings)

Ludwigia palustris is propagated by cuttings, also called topping. Trimming with aquascaping scissors promotes new side-shoot growth: the healthy top portion is cut away and re-planted, while the remaining base responds by pushing out fresh lateral shoots. Over a few rounds this turns single stems into a dense group.

Step-by-Step

  1. Choose a healthy stem and cut the top 5 to 10 cm with clean aquascaping scissors, ideally just above a node.
  2. Strip the lowest pair or two of leaves from the cutting to expose a bare section of stem.
  3. Push the bare base gently into nutrient-rich substrate so it stays anchored.
  4. Leave the parent base in place; it will send out side shoots from the cut point.
  5. Stagger replanting heights, shorter at the front and taller behind, to build a natural slope.

Conditions for Healthy Growth

Strong lighting gives the best colour and compact, tight growth; under weaker light the internodal spacing stretches and leaves fade to a duller green-red. CO2 supplementation is recommended, especially in brightly lit setups, and the plant is nitrogen hungry, so regular fertilisation keeps new shoots vigorous. It tolerates a range of water parameters, suiting both beginners and more intensive aquascapes.

Trimming & Maintenance

Regular cutting encourages density within weeks, and each trim doubles as a fresh batch of cuttings. As the planting matures, the lower sections eventually need removal and the healthy tops re-planted, so trimming becomes a repeating maintenance cycle rather than a one-off task.

Common Challenges

The most common disappointment is loss of red colour, which usually traces back to insufficient light. Leggy stems with wide gaps between leaves are another sign of low light. Submersed forms that were grown emersed may shed some leaves while they adapt, but new submersed growth follows once the plant settles.

Ludwigia palustris is one of the easier red-capable stem plants to keep and multiply. Propagation is simply a matter of cutting healthy tops, stripping their lower leaves and replanting them while the base regrows side shoots. Provide strong light, some CO2 and steady fertilisation, and a single stem becomes a colourful thicket within a few trim cycles. Because it grows both emersed and submersed and tolerates varied water, it forgives the mistakes that newer aquarists tend to make, rewarding patient trimming with a dense, well-coloured display.

Sources

  1. Wikipedia content used under CC BY-SA 4.0
  2. How to grow Ludwigia sp. red, The 2Hr Aquarist
  3. tropica.com

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