Acanthaceae

Fragrant Hygrophila

Hygrophila odora

Thick stems with an unusual leaf shape, bright green under water and scented when grown above it. Simple in a marsh setup, more demanding in a tank.
Light
medium
Difficulty
medium
Height
10 – 20 cm (3.9 – 7.9 in)
Temperature
18 – 30 °C (64 – 86 °F)
Native rangeRange on the map
  • Burkina
  • Guinea-Bissau
  • Guinea
  • Ivory Coast
  • Liberia
  • Mali
  • Mauritania
  • Senegal
  • Sierra Leone

Tank conditions

Leaf colour
green
Plant type
stem plant
Growth rate
slow
CO₂ demand
medium
Tolerates light
medium – high
Carbonate hardness
0 – 7 °dKH
Placement
background, midground
Propagation
cuttings
Grows emersed
yes

Care and keeping

Appearance

Firm stems 10–20 cm tall with leaves that look like a cross between the two familiar hygrophilas — broad and lobed near the base, narrower toward the top. Above water the leaves are covered in short hairs and the plant produces pale bluish flowers.

Keeping

Moderate demands and slow growth under water, where it wants soft water, carbon dioxide and medium light to keep its shape. Grown above the water in a marsh or paludarium it is far easier and needs almost nothing.

Placement

The middle or back of the tank, in a group; or on the bank of a paludarium, where it does best.

Propagation

By cuttings: cut the top and plant it.

Fish and this plant

Matching water does not mean the fish will leave the plant alone.

Cultivars

The same plant with a different look: light, water and care are shared with the species.

Other varieties: Hygrophila odora ’Difformis’, Hygrophila odora 1 2 GROW

Scientific and other names, conservation status

Other scientific names
Polyechma odorum Nees, Hygrophila sp. ''Afrika'', Hygrophila sp. 'Guinea', Polyechma odorum
Hygrophila odora
(Nees) T. Anderson
Conservation status
LC