Crofton weed - Ageratina adenophora (Taxonomy, Characteristics, Flower, Images)

Crofton weed

Also known as: Canyon kelp, Maui pamakani, Sticky snakewort, Pamakani, Eupatory

Crofton weed is native to Mexico but has been introduced as an ornamental in many other regions. Since then, it has become a noxious weed in some areas. Crofton weed can invade pastures and is toxic to horses.

Scientific classification

Species

Crofton weed (Ageratina adenophora)

Asters bellflowers fanflowers and allies

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Perennial

Lifespan

Herb

Plant Type

All year round

Bloom Time

Mid spring, Late spring, Early summer

Harvest Time

1 m to 2 m

Plant Height

5 mm

Flower Size

Images of Crofton weed

Distribution of Crofton weed

Distribution Map

Crofton weed is native to parts of Latin America and has spread to various regions across multiple continents. This plant has established a presence primarily in tropical and subtropical zones, and while crofton weed thrives in new territories, it is sometimes thought to be a concern for local ecosystems due to its competitive nature, especially in areas with a similar climate to its native range. Crofton weed can be found across parts of Asia, the Pacific Islands, Africa, and some regions in Europe.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Roadsides, Railways, Pastures, Fence-lines, Disturbed sites, Waste areas

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Crofton weed

Every week

Water

Full sun

Sunlight

Water: Thriving in moist environments, crofton weed requires consistent hydration and prefers regular moisture, tolerating brief dryness. Water weekly, aligning with its natural rhythm. As an outdoor plant in subtropical zones, crofton weed benefits from rainfall during the growing season for robust growth and resilience.

Fertilize: For optimal growth, crofton weed requires balanced nutrition, using high phosphorus fertilizers during flowering. Fertilize monthly in the growing season and bi-monthly during dormancy, adjusting for seasons. Always apply diluted solutions and water crofton weed before fertilizing to improve nutrient uptake and prevent root burn.

Pruning: Crofton weed exhibits rapid growth with serrated leaves, necessitating regular pruning in early spring to late winter. Prune to healthy growth, removing dead or infested parts to encourage denser foliage. Consistent monitoring is essential to control spread and maintain aesthetic appeal.

Propagation: Originating from Mexico, crofton weed is an invasive species that outcompetes native plants. Propagation via division involves separating mature plants into rooted segments for replanting. This method ensures quick establishment in new areas but requires careful handling to prevent unintended spread.

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Images of Crofton weed

Distribution of Crofton weed

Care Guide for Crofton weed

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