1. Basic Identification
-
Scientific name: Rotala rotundifolia
-
Variant: Rotala rotundifolia “Wayanad”
-
Family: Lythraceae
-
Origin: Wayanad in Kerala
-
Plant type: Stem plant for aquascaping
-
Placement: Midground to background
“Wayanad” is a geographical variant collected from the Western Ghats region of India. It is valued for its orange-red coloration and compact growth.
🌱 Appearance
Leaf Structure
-
Narrow, slightly elongated leaves
-
Leaves grow opposite each other along the stem
-
Slightly thicker and shorter than some other rotundifolia variants
Color
Color depends heavily on light intensity.
Possible colors:
-
Light green
-
Orange
-
Peach
-
Pinkish-red
Under strong lighting it often develops bright orange tops.
Size
-
Height: 20–40 cm
-
Width: 4–7 cm per cluster
When trimmed regularly it forms dense colorful bushes.
🌍 Natural Habitat
This variant originates from wetlands and streams in the Western Ghats biodiversity region around Wayanad.
Typical habitat:
-
shallow streams
-
marshy riverbanks
-
flooded grasslands
Environmental conditions:
-
warm tropical climate
-
nutrient-rich soil
-
seasonal flooding
Like most Rotala species, it can grow emersed and submerged.
💡 Aquarium Care Requirements
Lighting
-
Medium to high light
Lighting impact:
-
Medium light → green to light orange
-
High light → bright orange to pinkish tips
CO₂
-
Recommended but not strictly required
With CO₂:
-
faster growth
-
denser stems
-
better coloration
Temperature
-
20–28 °C
pH
-
5.5 – 7.5
Water hardness
-
Soft to moderately hard water
Nutrients
Needs regular fertilization:
Key nutrients:
-
Nitrate (NO₃)
-
Phosphate (PO₄)
-
Iron (Fe)
-
Trace elements
Balanced nutrients help maintain vibrant coloration.
🌿 Growth Characteristics
-
Growth rate: Moderate to fast
-
Produces many side shoots when trimmed
-
Can form thick bushes in aquascapes
Compared with some other rotundifolia variants, “Wayanad” often grows slightly more compact.
✂️ Propagation
Propagation is very easy.
Method: Stem cuttings
Steps:
-
Trim the top of a healthy stem.
-
Remove lower leaves.
-
Plant the cutting into substrate.
-
Roots develop within about a week.
Frequent trimming creates dense colorful hedges.
🎨 Aquascaping Uses
Popular in planted aquariums for:
-
Background plant bushes
-
Color gradients in aquascapes
-
Dutch-style plant rows
-
Soft transition between green and red plants
Its orange-pink tones add warmth to aquascapes.
⚠️ Common Problems
| Problem | Cause |
|---|---|
| Long weak stems | Low light |
| Green coloration | Insufficient light |
| Pale leaves | Nutrient deficiency |
| Sparse growth | Lack of trimming |
👍 Advantages
-
Easy to grow
-
Fast growth
-
Attractive orange-pink coloration
-
Good for beginners
👎 Disadvantages
-
Needs trimming to maintain shape
-
Color fades in low light
✅ Quick summary:
Rotala rotundifolia “Wayanad” is a regional variant from the Wayanad region of Kerala. It is a hardy, moderately fast-growing stem plant that develops orange-pink coloration under strong light, making it a popular background plant in aquascaping.
