Smooth amaranth (Amaranthus hybridus)
Care, watering, light and tips for Smooth amaranth on Floravia.
Quick facts
- Family: Amaranthaceae
- Difficulty: Easy to care for
- Watering: every 5 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Smooth amaranth
Amaranthus hybridus, commonly known as hybrid amaranth or "nålamarant" in Swedish, is a robust and fast-growing annual plant, prized for its striking foliage and feathery inflorescences. It features leaves that can vary in color from deep green to reddish or purplish hues, and produces dense floral spikes that add a dramatic touch to the garden. It is ideal for flower beds, borders, or as an accent plant in cottage or naturalist garden styles.
Native range
North and South America, including Mexico and the southern United States
Care tips
It requires full sun for optimal growth and abundant flowering; lack of light can result in leggy plants. It prefers well-drained soil rich in organic matter, maintaining consistent moisture without waterlogging, especially during dry periods. Avoid excessive nitrogen fertilization, as it can promote foliage growth at the expense of flowering. It's important not to transplant seedlings too late, as they do not tolerate root disturbance well once established.
How to save a dying Smooth amaranth
- Warning signs
- Wilted, yellowing or pale leaves, soft stems. Slow or no growth.
- First aid
- Check soil moisture. If dry, water deeply. If waterlogged, aerate and drain. Move to partial shade if intense sun.
- What kills it
- Extreme over or underwatering. Also intense cold or frost, it's sensitive.
- Can it be saved?
- Yes, if you act quickly. It's a tough plant, recovers well with proper care.