Kaiser Aquatics Ludwigia sphaerocarpa

Ludwigia sphaerocarpa

Ludwigia sphaerocarpa, also known as Roundfruit Primrose-Willow, is a unique species of Ludwigia that has only recently gained popularity in the aquarium hobby. This plant is native to the wetlands of southwestern North America, particularly noted in areas from Massachusetts to eastern Texas. Unlike many other Ludwigia species, L. sphaerocarpa does not grow vertically but instead forms a more compact, rosette-like structure with a horizontal growth pattern.

The plant’s leaves can turn from a dull green to vibrant orange-brown hues under strong lighting, providing a striking contrast in planted aquariums. It’s particularly valued for its foreground to midground placement where it can create a colorful accent with its low-growing, dense foliage.

Care Tips:

• Temperature: Maintains well in water temperatures of 20-28°C with a pH range of 6.0-7.5.
• Lighting: Requires high light to achieve its best coloration. Insufficient light leads to green, less vibrant leaves.
• CO2: Benefits from CO2 supplementation for optimal growth and color, but can grow without it at a slower rate.
• Nutrients: Thrives in a nutrient-rich substrate; additional liquid fertilizers can enhance its growth and color.
• Pruning: Pruning is essential to encourage bushier growth and manage its spread. Cuttings can be replanted for propagation.

Ideal Placement in Aquarium: Ludwigia sphaerocarpa is ideal for the foreground or midground of an aquarium due to its compact, rosette growth habit. It contrasts well with taller or more linear plants, adding depth and visual interest. Its growth pattern makes it suitable for creating a natural, carpet-like effect or as a focal point in smaller aquascapes. This plant’s unique appearance and slow growth rate make it perfect for aquascapers looking for something a bit different from the typical fast-growing stem plants. However, due to its slower growth, patience is required to see its full potential in the tank.