Lamb's Quarters vs Parrot's Feather Plant Comparison

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

Lamb's Quarters

Lamb's Quarters

Chenopodium album

VS
Parrot's Feather

Parrot's Feather

Myriophyllum aquaticum

Lamb's Quarters

Lamb's Quarters

Chenopodium album

Lamb's Quarters is an annual herbaceous plant, typically considered a weed. It grows upright, reaching heights of 1 to 5 feet. The leaves are diamond-shaped to lance-shaped, with a powdery, whitish coating, especially on the younger leaves, giving them a grayish-green appearance. It produces small, inconspicuous greenish flowers in dense clusters. While often considered a nuisance, Lamb's Quarters is edible and has been used as a food source in many cultures. It is rarely cultivated intentionally but often appears in gardens and disturbed areas.

Amaranthaceae Eurasia; now naturalized worldwide
✨ Features: Edible leaves and seeds; attracts beneficial insects.
📖 Read Complete Lamb's Quarters 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 Lamb's Quarters Parrot's Feather
Light Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal growth. Full sun to partial shade
Watering Every 5-7 days in warm weather, less frequently in cooler weather. Daily to keep soil saturated
Humidity 30-50% 60-90%
Temperature 15-25°C 15-27°C
Care Level Expert Expert
Growth Rate Fast Fast
Max Height 1-5 feet (outdoor); significantly smaller if grown in a container indoors (uncommon) Up to 30 cm (12 inches) above water surface
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining soil; tolerates a wide range of soil types, including sandy, loamy, and clay soils. Heavy clay or loam soil that retains moisture well. Can also be grown directly in water.
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 5 minutes weekly (outdoors) 30 minutes weekly to control spread and remove debris.

🔬 Botanical Information — Comparing These Plants

Lamb's Quarters

Scientific Name Chenopodium album
Family Amaranthaceae
Native To Eurasia; now naturalized worldwide
Also Known As Lamb's Quarters, Lambsquarters, Pigweed, Goosefoot, Fat Hen, White Goosefoot
Leaves Diamond-shaped to lance-shaped leaves, 1-4 inches long, with a powdery, whitish coating, especially on younger leaves. The leaves are alternate and have slightly toothed margins.
Flowers Rarely flowers indoors. Outdoors, it produces small, inconspicuous greenish flowers in dense clusters at the ends of the stems.

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

Lamb's Quarters

Height 1-5 feet (outdoor); significantly smaller if grown in a container indoors (uncommon)
Spread 1-2 feet
Growth Rate Fast
Growth Pattern Upright, branching annual, typically growing to a height of 1 to 5 feet. It can become quite bushy if pinched back regularly.

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

Lamb's Quarters

Methods: Seed

Difficulty: Easy

Tips: Sow seeds directly into the soil in spring or fall. Seeds germinate readily in disturbed soil.

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

Lamb's Quarters

Lamb's Quarters is a highly adaptable plant that can thrive in a variety of conditions. Its powdery coating on the leaves helps it tolerate drought and heat. It is considered both a weed and a valuable food source.

  • ✓ Edible leaves and seeds provide nutrients.
  • ✓ Attracts beneficial insects to the garden.
  • ✓ Tolerates poor soil conditions.
  • ✓ Fast-growing and easy to propagate from seed.
  • ✓ Provides a natural, wild aesthetic to the garden.
  • ⚠️ 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

Lamb's Quarters

Repotting Not applicable, as it is an annual plant and not typically grown in containers.
Pruning Pinch back young plants to encourage bushier growth. Remove any yellowing or dead leaves.
Fertilizing Not typically needed, as it thrives in nutrient-poor soils. If desired, use a balanced fertilizer (10-10-10) at half strength once a month during the growing season.
Seasonal Care In spring and summer, provide ample sunlight and water. In fall, allow the plant to set seed. In winter, the plant dies back.

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

Lamb's Quarters

Full sun to partial shade. Requires at least 6 hours of direct sunlight for optimal growth.

Low light tolerant: ❌ No

Parrot's Feather

Full sun to partial shade

Low light tolerant: ❌ No

💧 Watering Needs

Lamb's Quarters

Water thoroughly when the top inch of soil is dry. Avoid overwatering, which can lead to root rot. Allow the soil to dry slightly between waterings. Signs of underwatering include wilting leaves. Signs of overwatering include yellowing leaves and a soggy soil.

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

Lamb's Quarters

Temperature: 15-25°C

Humidity: 30-50%

Parrot's Feather

Temperature: 15-27°C

Humidity: 60-90%

🤔 Which Plant Is Right For You?

Lamb's Quarters

Lamb's Quarters

Chenopodium album
Care: Expert Time: 5 minutes weekly (outdoors) Beginner: No

Experienced gardeners who want to experiment with growing edible weeds or those interested in foraging.

✅ Choose This Plant If...

  • You are interested in foraging for edible plants.
  • You want a fast-growing plant for a garden.
  • You need a plant that tolerates poor soil conditions.
  • You want to attract beneficial insects to your garden.
  • You are looking for a plant that requires minimal care outdoors.

❌ Skip This Plant If...

  • You have pets that might ingest it.
  • You are looking for a low-maintenance indoor plant.
  • You want a plant with showy flowers or foliage.
📍 Ideal Location: Outdoor garden or container in a sunny location.
🎨 Style: Natural, Wild, Cottage Garden
🏠 Apartment Friendly: No
⚠️ Lamb's Quarters contains soluble oxalates, which can be toxic to dogs, cats, and horses. Symptoms include drooling, vomiting, diarrhea, weakness, tremors, and kidney failure. The entire plant is considered toxic.
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

🌿

Both plants have similar basic care requirements but differ in appearance and specific needs. Compare plants carefully to find the best fit for your space.

💡 Pro Tips For Comparing These Plants

Lamb's Quarters Care Tips

Lamb's Quarters is primarily an outdoor plant and is challenging to grow indoors due to its high light requirements and tendency to become leggy. It is considered a weed and not typically cultivated indoors. Requires full sun and well-draining soil.

  • Provide full sun for optimal growth.
  • Water thoroughly when the top inch of soil is dry.
  • Pinch back young plants to encourage bushier growth.
  • Harvest leaves regularly to encourage new growth.
  • Monitor for pests and diseases and treat promptly.
❄️ Winter: Not applicable, as it is an annual plant that dies back in winter.
☀️ Summer: Provide ample sunlight and water during the growing season. Monitor for pests and diseases.

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

Lamb's Quarters

Common Issues: Aphids, leaf miners, fungal diseases (if humidity is high)
Solutions: For aphids and leaf miners, use insecticidal soap or neem oil. For fungal diseases, improve air circulation and avoid overwatering.

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

Lamb's Quarters

What are the light requirements for Lamb's Quarters?

Lamb’s Quarters thrives in full sun, requiring at least 6 hours of direct sunlight per day for optimal growth and flowering. However, it can tolerate partial shade, especially in hotter climates, where afternoon shade can prevent scorching. If growing indoors, place Lamb’s Quarters near a south-facing window to maximize light exposure.

How do I care for Lamb's Quarters?

Lamb’s Quarters is relatively easy to care for, thriving in full sun to partial shade and well-draining soil. Water regularly, especially during dry periods, keeping the soil consistently moist but not waterlogged. Fertilize every few weeks with a balanced fertilizer during the growing season to promote healthy growth and abundant flowering.

How do I propagate Lamb's Quarters?

Lamb’s Quarters primarily propagates through seeds. Allow flowers to mature and dry on the plant. Collect the seeds and store them in a cool, dry place. Sow seeds directly into the ground in spring or fall. Division is also possible, carefully separating the root ball of a mature plant and replanting the divisions.

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: April 22, 2026 — Plant care data reviewed and verified by our editorial team.