Amaranth vs Parrot's Feather Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Amaranth

Amaranth

Amaranthus spp.

VS
Parrot's Feather

Parrot's Feather

Myriophyllum aquaticum

Amaranth

Amaranth

Amaranthus spp.

Amaranth is a genus of annual or short-lived perennial plants known for their vibrant foliage and grain-like seeds. They vary greatly in appearance, from upright, bushy forms to drooping, tassel-like inflorescences. Many species are cultivated for their edible leaves and seeds, which are highly nutritious. Others are grown as ornamentals for their colorful foliage, which can range from green to red, purple, and gold. Amaranth is primarily an outdoor plant, thriving in full sun and warm temperatures. While some smaller varieties might temporarily survive indoors, they will struggle to achieve their full potential.

Amaranthaceae Various species originate from different regions worldwide, including North and South America, Africa, and Asia.
✨ Features: Edible leaves and seeds, vibrant foliage colors, attracts pollinators.
📖 Read Complete Amaranth Guide
Parrot's Feather

Parrot's Feather

Myriophyllum aquaticum

Parrot's Feather is an aquatic perennial plant characterized by its feathery, bright green leaves that emerge both above and below the water surface. Submerged leaves are typically reddish. It spreads rapidly through rhizomes, forming dense mats. While sometimes grown in aquariums or water gardens for its ornamental value and ability to oxygenate water, it's primarily an outdoor plant. It is considered an invasive species in many regions due to its aggressive growth and ability to outcompete native vegetation. Its emergent stems can reach up to a foot above the water.

Haloragaceae South America
✨ Features: Oxygenates water, provides habitat for aquatic life, ornamental foliage
📖 Read Complete Parrot's Feather Guide

Quick Plant Comparison

Feature Amaranth Parrot's Feather
Light Full sun (at least 6-8 hours of direct sunlight daily) Full sun to partial shade
Watering Every 3-7 days, depending on weather and soil drainage Daily to keep soil saturated
Humidity 40-60% 60-90%
Temperature 20-30°C 15-27°C
Care Level Expert Expert
Growth Rate Fast Fast
Max Height 0.3-2.5m (outdoors); significantly smaller if grown indoors (unlikely to thrive) Up to 30 cm (12 inches) above water surface
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining soil, such as a mix of potting soil, perlite, and compost. Heavy clay or loam soil that retains moisture well. Can also be grown directly in water.
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 15-30 minutes weekly (weeding, watering, pest control) 30 minutes weekly to control spread and remove debris.

🔬 Botanical Information — Comparing These Plants

Amaranth

Scientific Name Amaranthus spp.
Family Amaranthaceae
Native To Various species originate from different regions worldwide, including North and South America, Africa, and Asia.
Also Known As Amaranth, Pigweed, Love-lies-bleeding
Leaves Amaranth leaves are typically oval or lance-shaped, with smooth or slightly wavy edges. The color varies depending on the species and cultivar, ranging from green to red, purple, and gold. The leaves are often textured and can be slightly hairy.
Flowers Amaranth produces small, densely packed flowers in spikes or tassels. The flowers are typically red, pink, purple, or gold, and they are often quite showy. Amaranth rarely flowers indoors due to insufficient light.

Parrot's Feather

Scientific Name Myriophyllum aquaticum
Family Haloragaceae
Native To South America
Also Known As Parrotfeather, Parrot's-feather, Brazilian watermilfoil
Leaves Submerged leaves are finely divided and reddish-green. Emergent leaves are bright green, lance-shaped, and arranged in whorls around the stem, resembling feathers. Leaves are typically 2-5 cm long.
Flowers Rarely flowers, especially in cultivation. Flowers are small, inconspicuous, and white, appearing in the leaf axils.

📏 Size & Growth — Plant Comparison

Amaranth

Height 0.3-2.5m (outdoors); significantly smaller if grown indoors (unlikely to thrive)
Spread 0.3-1m (outdoors); significantly smaller if grown indoors (unlikely to thrive)
Growth Rate Fast
Growth Pattern Amaranth typically grows upright and bushy, with some varieties exhibiting a more drooping or cascading habit. The plant produces numerous branches and leaves, culminating in showy flower spikes or tassels.

Parrot's Feather

Height Up to 30 cm (12 inches) above water surface
Spread Spreads aggressively via rhizomes, forming dense mats
Growth Rate Fast
Growth Pattern Spreads horizontally via rhizomes, forming dense mats. Emergent stems grow upwards, creating a feathery appearance above the water surface.

🌱 Propagation — Comparing Plant Growth

Amaranth

Methods: Seed

Difficulty: Easy

Tips: Sow seeds directly into the soil in spring after the last frost. Keep the soil moist until germination. Seeds can also be started indoors 6-8 weeks before the last frost.

Parrot's Feather

Methods: Stem cuttings, division of rhizomes

Difficulty: Easy

Tips: Take stem cuttings with at least 2-3 nodes. Place cuttings in water or directly into moist soil. Rhizome divisions can be planted directly into the desired location.

✨ Benefits & Features — Comparing Plant Value

Amaranth

Amaranth is unique for its combination of edible leaves and seeds, along with its vibrant foliage colors. It is a versatile plant that can be used in both culinary and ornamental applications. Its drought tolerance, once established, makes it a relatively easy plant to maintain in the right conditions.

  • ✓ Provides highly nutritious edible leaves and seeds.
  • ✓ Attracts pollinators to your garden.
  • ✓ Adds vibrant color and visual interest to your outdoor space.
  • ✓ Relatively easy to grow from seed.
  • ✓ Can be used in cut flower arrangements.
  • ⚠️ Toxic to pets

Parrot's Feather

Parrot's Feather is unique due to its ability to grow both submerged and emergent, with distinct leaf forms in each environment. Its feathery foliage and rapid growth make it a visually striking but potentially problematic addition to aquatic ecosystems.

  • ✓ Oxygenates water, improving water quality.
  • ✓ Provides habitat for small aquatic animals.
  • ✓ Adds a unique texture and visual appeal to water gardens.
  • ✓ Can help to reduce algae growth by competing for nutrients.
  • ✓ Offers a natural, calming aesthetic.
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Amaranth

Repotting Not applicable as it's an annual and not typically grown indoors long-term.
Pruning Pinch back young plants to encourage bushier growth. Remove spent flowers to prolong blooming.
Fertilizing Balanced liquid fertilizer (10-10-10) diluted to half strength, every 4-6 weeks during the growing season.
Seasonal Care In spring, sow seeds after the last frost. Provide regular watering and fertilization during the growing season (summer). Reduce watering in the fall as the plant matures. Amaranth is an annual in most climates and will die back in winter.

Parrot's Feather

Repotting Not typically repotted, but rhizomes may need to be divided and replanted to control spread.
Pruning Regular pruning is essential to control its aggressive growth and maintain desired shape.
Fertilizing Slow-release aquatic plant fertilizer or liquid fertilizer diluted to half strength, applied monthly during the growing season (spring and summer).
Seasonal Care In winter, growth slows down. Reduce fertilization. In colder climates, protect from freezing temperatures. In summer, ensure adequate water levels and sunlight.

🌞 Light Requirements

Amaranth

Full sun (at least 6-8 hours of direct sunlight daily)

Low light tolerant: ❌ No

Parrot's Feather

Full sun to partial shade

Low light tolerant: ❌ No

💧 Watering Needs

Amaranth

Water deeply when the top inch of soil feels dry. Avoid overwatering, as this can lead to root rot. Allow the soil to drain completely after watering. Signs of underwatering include wilting leaves, while overwatering can cause yellowing leaves and stem rot.

Parrot's Feather

Requires consistently moist to wet conditions. If grown in a container, ensure the soil is always saturated. For outdoor ponds or water gardens, it naturally thrives in water. Overwatering is not a concern, but allowing the soil to dry out will cause the plant to suffer. Signs of underwatering include wilting and browning of leaves.

🌡️ Temperature & Humidity

Amaranth

Temperature: 20-30°C

Humidity: 40-60%

Parrot's Feather

Temperature: 15-27°C

Humidity: 60-90%

🤔 Which Plant Is Right For You?

Amaranth

Amaranth

Amaranthus spp.
Care: Expert Time: 15-30 minutes weekly (weeding, watering, pest control) Beginner: No

Experienced gardeners who want to grow a nutritious and visually striking plant outdoors.

✅ Choose This Plant If...

  • You want a highly nutritious edible plant for your garden.
  • You desire a plant with vibrant and colorful foliage.
  • You want to attract pollinators to your outdoor space.
  • You are looking for a fast-growing annual plant.
  • You have a sunny outdoor garden space.

❌ Skip This Plant If...

  • You have pets that might ingest the plant, as it is toxic.
  • You lack a sunny outdoor space.
  • You are looking for a low-maintenance indoor plant.
📍 Ideal Location: Outdoor garden or sunny patio
🎨 Style: Bohemian, Cottagecore, Eclectic
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Amaranthus spp. contains soluble oxalates, which can be toxic to dogs, cats, and horses. Symptoms include gastrointestinal upset, drooling, vomiting, and diarrhea. In severe cases, kidney damage can occur.
Parrot's Feather

Parrot's Feather

Myriophyllum aquaticum
Care: Expert Time: 30 minutes weekly to control spread and remove debris. Beginner: No

Those with outdoor ponds, water gardens, or large aquariums who are aware of its invasive potential.

✅ Choose This Plant If...

  • You have a pond or water garden and want an oxygenating plant.
  • You are looking for a plant that can provide habitat for aquatic life.
  • You understand its invasive potential and are prepared to manage its growth.
  • You have a very bright, sunny location to provide adequate light.
  • You enjoy the unique feathery texture of its foliage.

❌ Skip This Plant If...

  • You are looking for an easy-to-care-for indoor plant.
  • You do not have a pond or water garden.
  • You are concerned about invasive species.
  • You have pets that might ingest the plant.
  • You cannot provide consistently wet conditions.
📍 Ideal Location: Outdoor pond, water garden, or very large, bright aquarium.
🎨 Style: Naturalistic, Pond, Cottagecore
🏠 Apartment Friendly: No
⚠️ According to the ASPCA, Myriophyllum species contain compounds that can be toxic to dogs, cats, and horses. Symptoms may include gastrointestinal upset (vomiting, diarrhea), skin irritation, and photosensitization.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Neither - caution
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ Key Differences Between These Plants

☀️

Amaranth needs full sun (at least 6-8 hours of direct sunlight daily), while Parrot's Feather prefers full sun to partial shade.

💡 Pro Tips For Comparing These Plants

Amaranth Care Tips

Amaranth is primarily an outdoor plant that requires full sun and well-draining soil. It is unlikely to thrive indoors due to insufficient light and space. Indoor attempts will require supplemental lighting and careful monitoring of watering and humidity. Toxicity to pets is a significant concern.

  • Start seeds indoors 6-8 weeks before the last frost for a head start.
  • Provide full sun for optimal growth and color development.
  • Water deeply but infrequently, allowing the soil to dry slightly between waterings.
  • Fertilize regularly during the growing season with a balanced fertilizer.
  • Monitor for pests and diseases and treat promptly.
❄️ Winter: Amaranth is an annual in most climates and will die back in winter. Remove dead plants from the garden to prevent disease.
☀️ Summer: Provide regular watering and fertilization during the summer growing season. Monitor for pests and diseases and treat promptly. Protect plants from extreme heat by providing some afternoon shade if necessary.

Parrot's Feather Care Tips

Parrot's Feather is primarily an outdoor aquatic plant and requires very specific conditions to thrive indoors. It needs intense light, constant moisture, and high humidity. It is an aggressive spreader, so containment is crucial. Indoor growth is challenging and often unsuccessful.

  • Provide ample sunlight to prevent leggy growth.
  • Regularly prune to control its spread and maintain shape.
  • Monitor water quality and adjust as needed.
  • Fertilize during the growing season to promote healthy growth.
  • Consider using a floating barrier to contain its spread in larger ponds.
❄️ Winter: Growth slows significantly in winter. Reduce fertilization. In colder climates, protect from freezing temperatures by moving to a sheltered location or providing insulation.
☀️ Summer: Ensure adequate water levels and sunlight. Monitor for algae growth and address as needed. Prune regularly to control spread.

⚠️ Common Problems & Solutions — Plant Care Comparison

Amaranth

Common Issues: Aphids, spider mites, fungal diseases (e.g., powdery mildew), root rot
Solutions: Treat aphids and spider mites with insecticidal soap or neem oil. Improve air circulation and use a fungicide for fungal diseases. Ensure proper drainage to prevent root rot.

Parrot's Feather

Common Issues: Algae growth, yellowing leaves, invasive spread, nutrient deficiencies
Solutions: Control algae with appropriate algaecides or by manually removing it. Yellowing leaves may indicate nutrient deficiencies; fertilize accordingly. Contain spread by using barriers or regularly pruning. Ensure proper water quality to prevent nutrient imbalances.

❓ Frequently Asked Questions — Comparing These Plants

Amaranth

What are the light requirements for Amaranth?

Amaranth demands ample sunlight to thrive and produce its characteristic vibrant blooms. Aim for at least 6-8 hours of direct sunlight daily. Inadequate light can result in leggy growth, faded colors, and reduced flowering. When grown indoors, place Amaranth near a south-facing window where it can receive maximum sunlight exposure. If natural light is insufficient, supplement with grow lights to ensure optimal growth. Rotate the plant regularly to ensure even light exposure on all sides. Be mindful of intense afternoon sun, which can scorch leaves, especially in hot climates. Consider using sheer curtains to filter the light during peak hours. Monitor the plant closely for signs of light stress, such as pale leaves or elongated stems, and adjust its position accordingly.

How do I care for Amaranth?

Amaranth thrives in full sun and well-draining soil. Water regularly, especially during hot weather, keeping the soil consistently moist but not waterlogged. Fertilize every 4-6 weeks during the growing season with a balanced fertilizer to promote healthy growth and vibrant blooms. Deadhead spent flowers to encourage further blooming. Amaranth is relatively low-maintenance, but monitoring for pests and diseases is essential. Provide support for taller varieties to prevent them from bending or breaking. Ensure good air circulation to minimize the risk of fungal issues. Prune as needed to maintain shape and remove any dead or damaged foliage. Consider mulching around the base of the plant to retain moisture and suppress weeds. Regularly inspect the plant for signs of nutrient deficiencies, such as yellowing leaves, and adjust fertilization accordingly.

How do I propagate Amaranth?

Amaranth is primarily propagated from seeds, which are readily available. Sow seeds directly into the garden after the last frost or start them indoors 6-8 weeks beforehand. For direct sowing, scatter seeds thinly over prepared soil and lightly cover with soil. Keep the soil consistently moist until germination, which typically occurs within 7-14 days. Thin seedlings to allow for adequate spacing. Amaranth can also be propagated via stem cuttings, although this method is less common. Take 4-6 inch cuttings from healthy stems, remove the lower leaves, and place them in water or directly into moist potting mix. Rooting should occur within a few weeks. Division is not a common propagation method for Amaranth. Keiki propagation is not applicable to Amaranth.

Parrot's Feather

What are the light requirements for Parrot's Feather?

Parrot’s Feather requires ample light to flourish. Ideally, it should receive at least 6 hours of direct sunlight per day, or bright indirect light. Insufficient light can lead to leggy growth and reduced vibrant color. When growing in aquariums, use full-spectrum LED lighting specifically designed for aquatic plants. Position the plant where it receives the most light, but be mindful of potential algae growth caused by excessive light. Adjust light intensity and duration based on the plant’s response. For outdoor ponds, ensure the plant is not overly shaded.

How do I care for Parrot's Feather?

Parrot’s Feather thrives in full sun to partial shade. Ensure at least 6 hours of sunlight daily for optimal growth. Maintain water temperatures between 60-80°F (15-27°C). Water should be clean and well-oxygenated. Regularly prune to control growth and prevent overcrowding. Fertilize with a liquid aquatic plant fertilizer every 2-4 weeks during the growing season (spring and summer). Monitor for pests like aphids and snails. If growing in a container, use a nutrient-rich aquatic soil. For submerged growth, provide sufficient light and carbon dioxide. Change the water regularly to prevent algae buildup. Good water circulation is crucial.

How do I propagate Parrot's Feather?

Parrot’s Feather is easily propagated through cuttings. Simply cut a healthy stem section, about 4-6 inches long, and remove the lower leaves. You can propagate in water or directly in moist substrate.

Last updated: May 3, 2026 — Plant care data reviewed and verified by our editorial team.