Parrot's Feather vs Prickly Poppy Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
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.
Prickly Poppy
Argemone polyanthemos
Argemone polyanthemos, commonly known as Prickly Poppy, is an annual or biennial herbaceous plant characterized by its prickly leaves and stems. It typically grows to a height of 1 to 3 feet. The plant features showy, papery white flowers with numerous stamens in the center. It is primarily an outdoor plant, thriving in sunny, well-drained locations. People grow it for its striking flowers and unique foliage, often in wildflower gardens or xeriscapes.
Quick Plant Comparison
| Feature | Parrot's Feather | Prickly Poppy |
|---|---|---|
| Light | Full sun to partial shade | Full sun (at least 6-8 hours of direct sunlight daily) |
| Watering | Daily to keep soil saturated | Every 1-2 weeks, depending on weather and soil drainage |
| Humidity | 60-90% | 30-50% |
| Temperature | 15-27°C | 15-30°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | Up to 30 cm (12 inches) above water surface | N/A (Outdoor plant, not suitable for indoor growing) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Heavy clay or loam soil that retains moisture well. Can also be grown directly in water. | Well-draining sandy or loamy soil |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly to control spread and remove debris. | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
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. |
Prickly Poppy
| Scientific Name | Argemone polyanthemos |
|---|---|
| Family | Papaveraceae |
| Native To | North America (Great Plains region of the United States and Canada) |
| Also Known As | Prickly Poppy, Crested Prickly Poppy, White Prickly Poppy |
| Leaves | The leaves are deeply lobed and have a prickly texture. They are typically bluish-green in color and have prominent white veins. |
| Flowers | The plant produces showy, papery white flowers with numerous yellow stamens in the center. Flowering typically occurs in summer. It will not flower indoors. |
📏 Size & Growth — Plant Comparison
Parrot's Feather
Prickly Poppy
🌱 Propagation — Comparing Plant Growth
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.
Prickly Poppy
Methods: Seed
Difficulty: Easy
Tips: Sow seeds directly into the ground in spring or fall. Seeds benefit from scarification or a period of cold stratification.
✨ Benefits & Features — Comparing Plant Value
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
Prickly Poppy
The Prickly Poppy is distinguished by its prickly foliage and stems, which provide a defense against herbivores. Its papery white flowers are also quite striking and attract pollinators.
- ✓ Attracts pollinators
- ✓ Drought-tolerant
- ✓ Adds visual interest to gardens
- ✓ Provides habitat for wildlife
- ✓ Low water usage
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Parrot's Feather
Prickly Poppy
🌞 Light Requirements
Parrot's Feather
Full sun to partial shade
Low light tolerant: ❌ No
Prickly Poppy
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
💧 Watering Needs
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.
Prickly Poppy
Water deeply when the top inch of soil is dry. Avoid overwatering, as this can lead to root rot. Signs of underwatering include wilting and dry, crispy leaves. Overwatering can cause yellowing leaves and a soggy soil.
🌡️ Temperature & Humidity
Parrot's Feather
Temperature: 15-27°C
Humidity: 60-90%
Prickly Poppy
Temperature: 15-30°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Parrot's Feather
Myriophyllum aquaticumThose 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.
Prickly Poppy
Argemone polyanthemosGardeners in arid or semi-arid climates looking for a drought-tolerant, visually striking plant for wildflower gardens.
✅ Choose This Plant If...
- You want a drought-tolerant plant for a sunny garden.
- You appreciate unique foliage and showy flowers.
- You want to attract pollinators to your garden.
- You live in a region with hot, dry summers.
- You enjoy the look of wildflower meadows.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You don't have a location with full sun.
- You are looking for a low-maintenance indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Parrot's Feather needs full sun to partial shade, while Prickly Poppy prefers full sun (at least 6-8 hours of direct sunlight daily).
Parrot's Feather has fast growth, while Prickly Poppy grows moderate.
💡 Pro Tips For Comparing These Plants
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.
Prickly Poppy Care Tips
Prickly Poppy is primarily an outdoor plant and is very difficult to grow indoors due to its high light requirements and need for well-drained soil. Attempting to grow it indoors will likely result in a weak, leggy plant that does not flower well. It requires full sun and careful watering to thrive.
- Ensure well-draining soil to prevent root rot.
- Provide full sun for optimal flowering.
- Deadhead spent flowers to encourage more blooms.
- Monitor for pests and diseases regularly.
- Avoid over-fertilizing.
⚠️ Common Problems & Solutions — Plant Care Comparison
Parrot's Feather
Prickly Poppy
❓ Frequently Asked Questions — Comparing These Plants
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.
Prickly Poppy
What are the light requirements for Prickly Poppy?
Prickly Poppies require a minimum of six to eight hours of direct sunlight per day to thrive and produce abundant blooms. Insufficient light can result in leggy growth, reduced flowering, and pale foliage. When planting Prickly Poppies, choose a location that receives full sun throughout the day. If growing them indoors, place them near a south-facing window where they can receive ample sunlight. Rotate the plants regularly to ensure even light exposure on all sides. During periods of low light, such as winter, consider supplementing with grow lights to maintain healthy growth and flowering. Monitor the plants closely for signs of light stress, such as elongated stems or yellowing leaves, and adjust their light exposure accordingly.
How do I care for Prickly Poppy?
Prickly Poppies thrive in full sun and well-drained soil. Water sparingly, allowing the soil to dry out between waterings. Overwatering can lead to root rot. Fertilize lightly during the growing season with a balanced fertilizer to encourage blooming. Deadhead spent flowers to promote continued flowering. Provide support for taller varieties to prevent them from flopping over. Prickly Poppies are relatively low-maintenance and can tolerate poor soil conditions. However, they benefit from occasional weeding to prevent competition from other plants. In colder climates, they may be grown as annuals. Be mindful of the plant’s prickly nature when handling it. Ensure adequate spacing between plants to allow for air circulation. Monitor for pests and diseases, and treat promptly if necessary.
How do I propagate Prickly Poppy?
Prickly Poppies are primarily propagated by seed. Collect seeds from dried seed pods in the fall. Sow the seeds directly into the garden in early spring or late fall. Choose a location with full sun and well-drained soil. Lightly rake the seeds into the soil surface and water gently. Keep the soil moist until germination occurs. Seedlings should emerge within a few weeks. Thin the seedlings to allow for adequate spacing between plants. Alternatively, seeds can be started indoors in seed trays and transplanted outdoors after the last frost. Prickly Poppies do not propagate well through division or cuttings due to their taproot system and sensitivity to disturbance. Ensure the plant is well-established before attempting any propagation method.
Last updated: April 27, 2026 — Plant care data reviewed and verified by our editorial team.