Propagating Ludwigia inclinata 'Cuba 2.0'

A practical guide to propagating the demanding 'Cuba 2.0' Ludwigia from stem cuttings, with the topping steps and the high light, CO2 and iron dosing needed to hold its orange-red color.

Overview

Ludwigia inclinata var. verticillata 'Cuba 2.0' is a verticillate cultivar of Ludwigia inclinata, the highly variable South American herb whose 'Cuba' and 'Pantanal' forms are among the most prized aquarium plants in the trade. Cuba 2.0 is an improved selection with longer internodes and brighter color, showing the red and orange crown typical of the species. It is a clone, so it is propagated solely from cuttings and each new stem inherits the parent's high-tech demands.

Propagation Method (Cuttings)

Like its parent, Cuba 2.0 is propagated by taking cuttings from the main stem and replanting them into the substrate. The stems are tall and do not branch much, so cutting the top is the main way to make new plants. Buried internodes root readily, and the remaining base sends out side shoots, so a single trim multiplies the planting while keeping the original group going.

Step-by-Step

Select a healthy, well-colored stem and cut the top 5-10 cm just above a leaf node.
Remove the lower leaves so a clean 2-3 cm section can be buried.
Replant the cutting deep enough that a bare internode sits in the substrate to root.
Group several stems closely, since the plant branches little and looks best dense.
Keep the trimmed base planted so it regrows from side shoots at the remaining nodes.

Conditions for Healthy Growth

As a verticillate L. inclinata form, Cuba 2.0 thrives under medium-to-high light, and CO2 injection is highly recommended to bring out color and dense growth. Consistent micronutrient supplementation with elevated iron drives the red and orange tones, while keeping water-column nitrate lean lets color dominate. A nutrient-rich substrate supports the fibrous roots and steady growth.

Trimming & Maintenance

Trim Cuba 2.0 by topping the stems, then replant the healthiest cuttings to renew the group. Because color concentrates on the crown and fades toward the base, regular trimming keeps the planting short, bright and well lit. Replanted tops re-root within a few days under good conditions.

Common Challenges

Loss of red or orange color signals too little light, iron or CO2.
Stunted crowns follow CO2 or nutrient instability; restore a steady supply.
Bare lower stems mean shading; thin the group and replant the tops.
Submersed leaf form and full color only appear under high light and CO2, not in an emersed setup.