The Golden Creeping Jenny (Lysimachia nummularia 'Aurea') is a striking stem plant celebrated for its brilliant chartreuse to golden-yellow foliage, offering vivid color contrast to traditional green aquascapes.

Short Description & Highlights

Lysimachia nummularia 'Aurea' is an adaptable, hardy stem plant featuring brilliant golden-green leaves that bring bright, warm tones to freshwater aquariums and paludariums. Known commonly as Golden Moneywort or Creeping Jenny, its vertical-to-trailing growth habit makes it an excellent choice for midground or background placement. Because it tolerates a wide spectrum of parameters and grows at a moderate pace, it is exceptionally forgiving and popular among beginner aquarists seeking a resilient splash of color.

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Detailed Beginner Care Guide

1. Placement & Aquascaping Layout

This versatile plant can be utilized fully submerged in aquariums or grown emersed along the margins of open-top tanks, ripariums, and paludariums. When planted in groups within the midground or background, its bright yellow-green leaves break up monotonous green layouts. Ensure individual stems are spaced about an inch apart when planting to allow adequate light penetration to lower leaves.

2. Lighting & Nutrition

While Lysimachia nummularia 'Aurea' can survive in lower-light setups, providing moderate to high lighting is essential to maintain its vibrant golden coloration. Pale or fading leaves often indicate a lack of light or nutrient deficiency. Regular dosing with a balanced liquid aquarium fertilizer containing iron and nitrates will keep the foliage robust and actively growing. Carbon dioxide ($\text{CO}_2$) injection is not mandatory, but it will significantly accelerate growth and improve overall vigor.

3. Maintenance & Propagation

Golden Moneywort exhibits a moderate-to-fast growth rate and will occasionally need regular pruning to maintain its shape and prevent it from shading out plants below. Propagation is straightforward: simply trim healthy stem tips (about 4 to 6 inches long), remove the lower leaves, and plant the cuttings directly into the substrate. Cut stems quickly develop a strong root system from their leaf nodes.