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Swampweed

Hygrophila

Also called Plants, Plant

Swampweed
Photo: Unknown author, CC BY-SA 3.0

Hygrophila, or swampweeds, is a genus of about 80 to 100 species in the acanthus family, many of them aquatic. The commonly grown members are aquarium and aquascaping plants, so the key is to keep them fully submerged or in very wet soil.

Grows as
Aquatic
Light
Bright indirect, Full sun
Water
Grow submerged in aquarium water or keep the soil constantly wet for bog forms.
Soil
Nutrient-rich aquarium substrate or moist, fertile garden mud.
Temperature
20–30 °C; protect below 15 °C
How easy
Easy

About

Hygrophila, commonly known as swampweeds, is a genus of flowering plants in the acanthus family, Acanthaceae. There are about 80 to 100 species, of which many are aquatic plants. The genus is distributed across the tropical and subtropical world. It is one of only two genera in its family that contains aquatic plants, the other being Justicia. The genus is treated in the tribe Hygrophileae, which is noted as being in need of revision at the genus level, meaning the current taxonomic boundaries of Hygrophila are likely to change in the future.

Where it grows

A number of Hygrophila species and cultivars are popular within the aquascaping and aquarium hobbies, including H. angustifolia, H. corymbosa, H. lancea 'Araguaia', H. pinnatifida, H. difformis 'Water Wisteria', H. odora, H. polysperma 'Indian swampweed' and H. siamensis. Additionally, there are some striking newer forms on the market, such as the vivid hybrids of Hygrophila polysperma, 'Sunset' and 'Rosanervig'.

Other Hygrophila plants

Starhorn · Yerba de hicotea · Water Wisteria · Hygrophila madurensis · Indian swampweed

Text excerpted from the Wikipedia article Hygrophila (plant) by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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