Samolus valerandi

Species description

Care, breeding and tankmates

Plant profile

Placement

Foreground

Place Samolus valerandi in the midground or background of the aquarium. It needs enough space to avoid shading neighboring species. Proper placement ensures steady light exposure and water flow.

Botanical form

Rosette

Samolus valerandi features a distinct structural form with well-defined leaves. Its stem and root structures anchor firmly into the substrate. The overall appearance provides excellent visual texture underwater.

Growth

Slow

The growth rate of Samolus valerandi is generally moderate under optimal conditions. Adding CO2 injection will significantly accelerate its development. However, it can adapt to slower growth in low-tech setups.

Substrate

High

*Samolus valerandi*, also known as the water pimpernel, thrives best when planted in a nutrient-rich substrate like aqua soil to support its robust root system. This plant relies heavily on root feeding, absorbing essential macro and micronutrients directly from the substrate layer. A minimum substrate depth of 4-5 cm is recommended to allow adequate root expansion and secure anchoring. Providing a fertile bed will encourage vigorous growth and the development of healthy, vibrant green rosettes.

Column fertilization

Optional

Liquid fertilization is very beneficial for Samolus valerandi. It absorbs dissolved minerals directly from the water column. Dosing a complete micronutrient fertilizer twice a week is recommended.

Root fertilization

Required

A nutrient-rich substrate strongly supports the root system of Samolus valerandi. Adding root tabs near its base provides essential macronutrients. This promotes a stronger base and healthier overall growth.

Trimming

Occasional

Regular trimming keeps Samolus valerandi looking neat and prevents overgrowth. Cut the stems just above a node to encourage branching. Remove any decaying or yellowing leaves to maintain water quality.

Propagation

Division

Propagation of Samolus valerandi is straightforward by taking stem cuttings. Replant the healthy cut portions directly into the substrate. They will develop new roots within a week or two.

Sensitivity

Moderate

Samolus valerandi is somewhat sensitive to sudden fluctuations in water parameters. It prefers stable temperatures and consistent CO2 levels. Algae can grow on its leaves if lighting is too intense.

Layout role

group, Foreground, Midground, Nano

Samolus valerandi plays a crucial role in creating depth in an aquascape. Its unique texture contrasts beautifully with fine-leaved plants. It works well as a focal point or a transition plant.