Dotted smartweed (Persicaria punctata)

Dotted smartweed

Also known as: American willow weed

Dotted smartweed (Persicaria punctata) is a wetland plant important to many kinds of native wildlife. Its nectar attracts bees and beetles, and many insect larvae feed on its leaves. Small birds and mammals find the seeds very tasty. This plant thrives wherever there’s shallow water to be found, such as in ponds and marshes.

Scientific classification

Species

Dotted smartweed (Persicaria punctata)

Pinks, cacti, and allies

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Perennial, Annual

Lifespan

90 cm

Spread

2.5 cm

Flower Size

White, Green

Flower Color

Semi-evergreen

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Dotted smartweed

Distribution of Dotted smartweed

Distribution Map

Dotted smartweed is notably present across major regions of South and Central America, naturally gracing these areas with its growth. This species has been introduced in certain parts of Asia. While not widely cultivated, dotted smartweed has ventured beyond its native habitat, adapting to some distant environments. In certain areas, dotted smartweed is sometimes thought to be subtly influential on local ecosystems, particularly where it is non-native, as in the case of New Zealand.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Shallow water, shores, marshes, floodplain forests

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

Binding, Health

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Care Guide for Dotted smartweed

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Dotted smartweed thrives in moist environments and requires consistent hydration, ideally through weekly watering. It benefits from rainwater, which supports its growth in outdoor settings, enhancing its health during the active growing season.

Fertilize: Fertilize dotted smartweed bi-weekly with a diluted high-nitrogen solution to promote growth, especially in early stages and the growing season. Water the soil prior to application to prevent root burn. Reduce frequency during dormancy and adjust fertilization based on the plant's response.

Pruning: Dotted smartweed thrives with spring pruning to enhance growth. Trim dead stems and thin overcrowded areas for better airflow and sunlight, promoting a bushier shape. Regular pruning manages spread and maintains appearance; timely maintenance is key due to the plant's rapid growth.

Propagation: Dotted smartweed features elongated leaves with dotted markings and prefers damp environments. Propagation via cuttings is effective, requiring healthy stem segments planted in moist soil. Provide warm, indirect light and regular watering to support root development for thriving new plants.

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Images of Dotted smartweed

Distribution of Dotted smartweed

Culture

Care Guide for Dotted smartweed

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