Crofton weed (Ageratina adenophora)
Care, watering, light and tips for Crofton weed on Floravia.
Quick facts
- Family: Asteraceae
- Difficulty: Demanding
- Watering: every 3 days
- Light: Full sun
- Temperature: 0–35 °C
- Toxicity: Toxic to pets
About Crofton weed
Ageratina adenophora, commonly known as 'Mexican Devil' or 'Eupatory', is a fast-growing perennial herbaceous plant native to Mexico and Central America. It is characterized by its branched stems, opposite toothed leaves, and dense clusters of small white flowers. Although invasive in many regions, in its native habitat or controlled environments, it can add a wild and floriferous touch.
Native range
Mexico and Central America
Care tips
It requires full sun to partial shade for optimal development, though it tolerates a wide range of conditions. Watering should be moderate, allowing the substrate to dry out slightly between waterings, as it is susceptible to waterlogging. It prefers well-drained, fertile soils with good organic matter content; a common mistake is planting it in heavy, poorly drained soils, which can lead to root rot. Due to its invasive nature, caution is advised when cultivating it outside its native range, especially in temperate or subtropical climates.
How to save a dying Crofton weed
- Warning signs
- Yellowish or whitish leaves, soft stems, general wilting.
- First aid
- Transplant to a larger pot or well-drained soil. Remove dead parts.
- What kills it
- Lack of root space, infertile or waterlogged soil. It's very invasive.
- Can it be saved?
- Yes, if acted upon quickly and given the space and nutrients it needs.