Potamogeton undulatus
Care, watering, light and tips for Potamogeton undulatus on Floravia.
Quick facts
- Family: Potamogetonaceae
- Difficulty: Moderate care
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
About Potamogeton undulatus
Potamogeton undulatus, commonly known as Wavy Pondweed, is a submerged, perennial, rhizomatous aquatic plant characterized by its thin, translucent leaves with wavy margins that elegantly float in the water. It is ideal for ponds, cold or temperate freshwater aquariums, and natural water bodies where it adds a touch of greenery and provides shelter for aquatic fauna.
Native range
Europe, Asia, and Africa
Care tips
It requires medium to high light for optimal growth and healthy development of its wavy leaves. The substrate should be nutrient-rich, preferably a mix of clay and sand or specific aquatic plant substrates, to anchor its rhizomes. Ensure good water quality, with stable pH levels (6.0-7.5) and a temperature between 10-25°C. A common mistake is not providing enough space for its growth, as it can spread rapidly.
How to save a dying Potamogeton undulatus
- Warning signs
- Pale, transparent leaves, or frayed edges. Stunted growth or stem rot.
- First aid
- Check water quality (pH 6.5-7.5, medium hardness), temperature (18-28°C), and nutrient levels (nitrates, phosphates). Ensure moderate light.
- What kills it
- Very soft/hard water, lack of CO2, extreme or fluctuating temperatures, excessive direct light causing algae.
- Can it be saved?
- Yes, if you act quickly to correct water parameters and lighting. Remove heavily damaged parts to prevent spread.