Gratiola viscidula

Gratiola viscidula is a compact stem plant prized for its bright-green foliage that can be trimmed into neat foreground or midground groups. It works especially well in the foreground to midground, where thoughtful spacing and routine maintenance help it develop its best shape and color.

For best results, provide a nutrient-rich substrate or consistent water-column fertilization and keep conditions stable. Acclimate the plant gradually, remove damaged growth, and maintain consistent water quality while new roots and shoots establish.

Difficulty: Moderate
Light Requirement: Medium to high
pH Range: 6.0–7.5
Temperature: 68–82°F (20–28°C)
Placement: Foreground to midground
Growth Rate: Slow to moderate
CO₂ Requirement: Recommended
Propagation: Stem cuttings and side shoots