Polygonella

When the genus is defined narrowly polygonella species are annual or perennial herbaceous plants rarely shrubby with much branched stems. The leaves are arranged alternately with a length greater than the width. The flowers are usually bisexual rarely unisexual and have five (occasionally four) tepals the outer being slightly different from the inner ones. The fruit is three-sided. As of winter 2019 Plants of the World Online accepted 129 species. The genus primarily grows in northern temperate regions.

Scientific classification

Genus

Polygonella (Polygonella)

Family

Buckwheat

Order

Pinks, cacti, and allies

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Semi-evergreen

Leaf type

Images of Polygonella

Species

Coast jointweed Tall jointweed

Care Guide for Polygonella

Every week

Water

Full sun

Sunlight

Water: Polygonella thrives in consistent moisture and moderate hydration, favoring stable humidity. It benefits from weekly watering to avoid drought stress and is often grown indoors where conditions can be controlled, with water needs linked to ambient humidity and temperature for healthy growth.

Propagation: Polygonella propagates best from seeds, requiring well-draining soil and ample light. Key steps include collecting seeds, preparing a drainage mix, sowing, lightly covering, gently watering, maintaining warmth and moisture, and acclimatizing seedlings post-germination. Propagation is moderately challenging due to dormancy and slow root growth.

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Learn More About Polygonella

How to Grow and Care

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