Anchored water hyacinth

Photo: KENPEI, CC BY-SA 3.0, via Wikimedia Commons

Stem plant · Pontederiaceae

Anchored water hyacinth

Eichhornia azurea (Sw.) Kunth

mediumGrowth: fast

—

Height in the aquarium

medium to high

Light

medium

CO₂ needs

15–24 °C

Ideal temperature

Water parameters

Understand these values
pH5 – 7.5
49
Carbonate hardness (KH)0 – 10°
0°25°
Temperature6 – 33°Cideal 15–24°C
0°C35°C
Position
background, midground, floating
Propagation
cuttings
Uses
open-top tank
Grows emersed
yes

In the wild

Overview

Underwater, its long, narrow leaves line up on each side of the stem, giving the shoot the look of a palm frond. This American plant looks very different at the surface, with spoon-shaped aerial leaves. Its outline is best shown off as a specimen plant in a large tank.

Scientific name
Pontederia azurea Current valid name; in the hobby: Eichhornia azurea
Classification
Commelinales › Pontederiaceae
IUCN Red List
Not evaluated (NE)

Natural habitat

Tropical and subtropical America, from Mexico to Argentina, and the West Indies

Observations (GBIF) and localities Native countries Introduced in Rivers and lakes

Native countries
Introduced by people

Outside its native range, in 3 countries:

An aquarium plant must never reach the wild: throwing away cuttings or emptying a tank into a stream can be enough to establish it.

Countries: Kew World Checklist of Vascular Plants (WCVP). Dots: GBIF observations in the native countries.

In the aquarium

Growing in the aquarium

Provide a tall aquarium and space around the shoots; the submerged leaves are fragile and do not like being crushed during planting. Take cuttings of the tops before they reach the surface if you want to keep the aquatic form. A top that has already grown aerial leaves may keep producing that form after replanting.

Sources:Flowgrow GBIF POWO (Kew) · Base map: Natural Earth

Anchored water hyacinth · Aquarius