Palmer amaranth (Amaranthus palmeri)
Care, watering, light and tips for Palmer amaranth on Floravia.
Quick facts
- Family: Amaranthaceae
- Difficulty: Demanding
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Palmer amaranth
Amaranthus palmeri, commonly known as Palmer amaranth, is a fast-growing annual plant native to North America. It is characterized by its sturdy stems and bright green, lance-shaped leaves, often featuring a V-shaped watermark. While considered an invasive species in many areas, in specific contexts it can be used in wildlife gardens to attract pollinators, always with strict control over its spread.
Native range
Southwestern United States and northern Mexico
Care tips
This plant thrives in full sun and tolerates a wide range of soils, though it performs best in well-drained, rich soil. It requires regular watering for optimal growth, especially in hot and dry climates. A common mistake is underestimating its growth and dispersal capabilities; it's crucial to monitor and control its spread to prevent it from becoming a problematic weed.
How to save a dying Palmer amaranth
- Warning signs
- Wilting or chlorotic leaves at base, stunted growth, weak stem.
- First aid
- Adjust watering (avoid waterlogging), check nutrients, control pests and nearby weeds.
- What kills it
- Excessive competition for nutrients/water, or improper herbicide use.
- Can it be saved?
- Yes, if the cause is corrected quickly and there's no irreversible stem damage.