Parrot's feather

Myriophýllum aquáticum

Family: Haloragaceae

Genus: Myriophyllum

Difficulty

Easy

Light

Medium to High

Growth Rate

Very Fast

Usage

Background

Midground

Path

Floating

Ideal Conditions

Temperature

4-28°C(opt: 20°C)

CO2

15-40mg/L

pH

5-7.5

Nutrients

Nitrate (NO3): 10-50mg/L

Phosphate (PO4): 0.1-3mg/L

Potassium (K): 5-30mg/L

Iron (Fe): 0.01-0.5mg/L

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Description

Parrotfeather (Myriophyllum aquaticum) originates from South America's southern region but has been introduced to tropical and warm-temperate regions worldwide. It forms large populations with long shoots trailing on the water surface, with tips rising above the waterline. Its characteristic feature is blue-green, finely structured, and water-repellent emersed leaves. This plant is suitable for garden ponds and aquaria, known by synonyms Myriophyllum brasiliense and "parrotfeather". Several varieties are cultivated: a standard form with tall growth, where emersed forms produce only female flowers; submersed leaves turn light orange-brown under strong light. Another variety has dark to medium green coloration, with reddish brown tips on leaflets, and male flowers develop in the emersed plant. A small-staying form with dark red stems is often sold for garden ponds.