Here’s all about Limnophila aromatica 'Purple' — a striking stem plant highly valued in aquascaping for its vibrant purple hues, aromatic nature, and versatile growth under submerged and emersed conditions....
Here’s all about Limnophila aromatica 'Purple' — a striking stem plant highly valued in aquascaping for its vibrant purple hues, aromatic nature, and versatile growth under submerged and emersed conditions.
Scientific Name: Limnophila aromatica (Purple variant)
Family: Plantaginaceae (formerly Scrophulariaceae)
Common Names:
Limnophila aromatica purple
Vietnamese Limnophila
Purple Fragrant Limnophila
Origin: Southeast Asia (mainly Vietnam, Thailand, Cambodia)
Culinary Use (emersed): Used in Vietnamese cuisine (as "Ngò om")
Leaf Shape: Narrow, lanceolate or needle-like depending on growth
Leaf Color:
Under high light & CO₂: Vibrant purple, pink, reddish tips
Under moderate light: Green with hints of red
Stem: Reddish or pink
Growth Style: Upright, bushy with frequent trimming
Height: 20–50 cm (8–20 inches)
Width: ~4–8 cm per stem (can be bushy)
Parameter | Optimal Range |
---|---|
Temperature | 22–28°C (72–82°F) |
pH | 5.5–7.2 (slightly acidic preferred) |
Hardness | Soft to moderately hard (2–10 dGH) |
Lighting | High light needed for deep purple |
CO₂ | Essential (20–30 ppm) |
Substrate | Nutrient-rich soil or aquasoil |
Growth Rate: Moderate to fast (with CO₂ and nutrients)
Propagation:
Cut healthy top portions and replant
Side shoots can be trimmed and replanted too
Trimming: Encourages dense, compact bushes
Spacing: 2–3 cm between stems for even spread
Used in Dutch-style layouts or color-layered nature tanks
Perfect for background or midground contrast
Offers a rare purple coloration few aquatic plants provide
Combines well with:
Rotala wallichii
Ludwigia super red
Pogostemon erectus
Hemianthus micranthemoides
Requires consistent light, CO₂, and nutrients
Dose iron-rich micronutrients for vibrant colors
Trim tops weekly for bushier growth
Ensure good flow to avoid algae buildup on delicate leaves
Best colors appear in tanks with stable CO₂ and high PAR
Symptom | Cause |
---|---|
Green leaves with no purple | Low light or CO₂ |
Stunted or curled tips | Micronutrient (iron, manganese) deficiency |
Leggy, tall stems | Infrequent trimming or low light |
Algae-covered stems | Poor flow or excessive light with no CO₂ |
Safe with:
All community fish
Shrimp and snails
Not eaten by most fish due to its aromatic taste
Provides shade and hiding for fry and invertebrates
Feature | Description |
---|---|
Color | Green to deep purple (depending on care) |
Lighting | High light required |
CO₂ | Necessary for coloration |
Growth Style | Upright, bushy stem |
Tank Placement | Midground to background |
Difficulty | Moderate to advanced |
Exotic purple tones rare in aquatic plants
High-impact color contrast in planted tanks
Moderate care level (not too demanding with proper setup)
Adds a scented, culinary-emersed appeal in open-top tanks
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