water fern

Also known as: fairy fern

This plant is listed on Schedule 9 of The Wildlife (Northern Ireland) Order (1985), as amended, as an invasive non-native species and is banned from sale. See cultivation notes for further details

Scientific classification

Species: water fern (Azolla filiculoides)
Genus: Azolla
Family: Salviniaceae

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water fern pictures

Distribution of water fern

Distribution map

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Culture

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Toxicity

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Quick identification of water fern

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water fern care guide

Moderate regular watering, allowing brief slight drying between soakings
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Ideal temperature

Watering

Moderate regular watering, allowing brief slight drying between soakings

Fertilizing

Balanced perennial feed every four weeks from spring through summer

Pruning

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Propagation

Please see cultivation notes

Growing

This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act as an invasive non-native species. Across the EU, UK and NI it is an offence to plant or cause to grow in the wild plants listed on Schedule 9 of this order. These plants should not be planted or caused to grow in the wild and in addition are banned from sale. Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information

More growing and care information →