Prickly Poppy vs Swedish Ivy Plant Comparison

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

Prickly Poppy

Prickly Poppy

Argemone polyanthemos

VS
Swedish Ivy

Swedish Ivy

Plectranthus verticillatus

Prickly Poppy

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.

Papaveraceae North America (Great Plains region of the United States and Canada)
✨ Features: Drought tolerance, attractive flowers, attracts pollinators
📖 Read Complete Prickly Poppy Guide
Swedish Ivy

Swedish Ivy

Plectranthus verticillatus

Swedish Ivy, despite its common name, is not a true ivy nor is it from Sweden. It's a succulent-like perennial, often grown as a houseplant for its attractive, cascading foliage. It features glossy, rounded, scalloped-edged leaves and a trailing growth habit, making it ideal for hanging baskets or displaying on shelves where its stems can spill over the edges. While it can be grown outdoors in warm climates, it's primarily favored as an indoor plant for its ease of care and ability to brighten up spaces with its vibrant green foliage. People grow it for its aesthetic appeal and relatively low maintenance requirements.

Lamiaceae Southeastern Africa
✨ Features: Trailing growth habit, attractive foliage
📖 Read Complete Swedish Ivy Guide

Quick Plant Comparison

Feature Prickly Poppy Swedish Ivy
Light Full sun (at least 6-8 hours of direct sunlight daily) Bright indirect light
Watering Every 1-2 weeks, depending on weather and soil drainage Every 7-10 days, depending on environmental conditions and pot size.
Humidity 30-50% 40-60%
Temperature 15-30°C 18-24°C
Care Level Expert Easy
Growth Rate Moderate Fast
Max Height N/A (Outdoor plant, not suitable for indoor growing) 15-30 cm
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-draining sandy or loamy soil Well-draining potting mix, such as a mix of peat moss, perlite, and vermiculite.
Beginner Friendly ❌ No ✅ Yes
Weekly Maintenance 15 minutes weekly 5 minutes weekly

🔬 Botanical Information — Comparing These Plants

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.

Swedish Ivy

Scientific Name Plectranthus verticillatus
Family Lamiaceae
Native To Southeastern Africa
Also Known As Swedish Ivy, Creeping Charlie, Whorled Plectranthus, Money Plant (sometimes)
Leaves The leaves are rounded to oval in shape, with scalloped edges. They are typically a glossy, bright green color. The leaves are succulent-like and store water, contributing to the plant's drought tolerance. They are typically 2-5 cm in diameter.
Flowers Swedish Ivy can flower indoors, but it is relatively uncommon. The flowers are small, white or pale lavender, and grow in clusters on long stems. They are not particularly showy and are often removed to encourage foliage growth.

📏 Size & Growth — Plant Comparison

Prickly Poppy

Height N/A (Outdoor plant, not suitable for indoor growing)
Spread N/A (Outdoor plant, not suitable for indoor growing)
Growth Rate Moderate
Growth Pattern The plant grows upright, forming a bushy clump. It is an annual or biennial, meaning it completes its life cycle in one or two years.

Swedish Ivy

Height 15-30 cm
Spread 30-60 cm
Growth Rate Fast
Growth Pattern Trailing and cascading. Stems can grow long and will spill over the edges of pots or hanging baskets. Pinching back the stems encourages a bushier, more compact growth habit.

🌱 Propagation — Comparing Plant Growth

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.

Swedish Ivy

Methods: Stem cuttings

Difficulty: Easy

Tips: Take stem cuttings with at least 2-3 nodes. Remove the lower leaves and place the cutting in water or directly into moist potting mix. Roots will typically develop within a few weeks.

✨ Benefits & Features — Comparing Plant Value

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

Swedish Ivy

Despite its common name, it's not a true ivy and is native to southeastern Africa. Its scalloped leaves and trailing growth habit make it a visually appealing and versatile houseplant.

  • ✓ Adds a touch of greenery to indoor spaces
  • ✓ Easy to propagate and share
  • ✓ Relatively low-maintenance
  • ✓ Can improve indoor air quality by absorbing some pollutants (though not a significant air purifier)
  • ✓ Provides a calming and relaxing atmosphere
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Prickly Poppy

Repotting N/A (Outdoor plant)
Pruning Deadhead spent flowers to encourage further blooming. Remove any dead or damaged foliage.
Fertilizing Low-nitrogen fertilizer, applied sparingly in spring
Seasonal Care In spring, sow seeds and provide regular watering until established. In summer, ensure adequate sunlight and monitor for pests. In fall, allow seed heads to dry for self-seeding. In winter, the plant typically dies back.

Swedish Ivy

Repotting Repot every 1-2 years, or when the plant becomes root-bound.
Pruning Pinch back stems regularly to encourage bushier growth and remove any dead or yellowing leaves.
Fertilizing Balanced liquid fertilizer (20-20-20) diluted to half strength, every 4-6 weeks during the growing season (spring and summer).
Seasonal Care Reduce watering in the winter months when growth slows down. Provide adequate light during shorter days.

🌞 Light Requirements

Prickly Poppy

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

Low light tolerant: ❌ No

Swedish Ivy

Bright indirect light

Low light tolerant: ✅ Yes

💧 Watering Needs

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.

Swedish Ivy

Water thoroughly when the top inch of soil feels dry to the touch. Ensure good drainage to prevent root rot. Overwatering can lead to yellowing leaves and stem rot, while underwatering will cause the leaves to droop and become crispy.

🌡️ Temperature & Humidity

Prickly Poppy

Temperature: 15-30°C

Humidity: 30-50%

Swedish Ivy

Temperature: 18-24°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Prickly Poppy

Prickly Poppy

Argemone polyanthemos
Care: Expert Time: 15 minutes weekly Beginner: No

Gardeners 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.
📍 Ideal Location: Outdoor garden or xeriscape in a sunny location
🎨 Style: Wildflower, Naturalistic, Southwestern
🏠 Apartment Friendly: No
⚠️ All parts of the plant, especially the seeds, contain alkaloids that are toxic to dogs, cats, and horses. Symptoms include gastrointestinal upset (vomiting, diarrhea), incoordination, and potentially neurological signs.
Swedish Ivy

Swedish Ivy

Plectranthus verticillatus
Care: Easy Time: 5 minutes weekly Beginner: Yes

Beginners looking for an easy-to-grow trailing plant that adds a touch of greenery to their indoor spaces.

✅ Choose This Plant If...

  • It's incredibly easy to propagate from cuttings, making it a great plant to share with friends.
  • It has a beautiful trailing habit, perfect for hanging baskets or shelves.
  • It tolerates a wide range of indoor conditions, making it adaptable to different environments.
  • It's relatively low-maintenance, requiring minimal care once established.
  • Its vibrant green foliage adds a touch of freshness to any room.

❌ Skip This Plant If...

  • It is toxic to pets and should be kept out of their reach.
  • It can become leggy if not pruned regularly.
  • It is susceptible to common houseplant pests like mealybugs and spider mites.
📍 Ideal Location: Hanging basket near a bright window, shelf with indirect light, or windowsill with filtered sunlight.
🎨 Style: Bohemian, Cottagecore, Traditional
🏠 Apartment Friendly: Yes
⚠️ According to the ASPCA, Swedish Ivy is toxic to dogs, cats, and horses. Symptoms include vomiting, diarrhea, and skin irritation.

🎯 Quick Verdict

Best for Beginners Swedish Ivy
Pet Friendly Neither - caution
Less Maintenance Swedish Ivy
Apartment Friendly Swedish Ivy

⚡ Key Differences Between These Plants

☀️

Prickly Poppy needs full sun (at least 6-8 hours of direct sunlight daily), while Swedish Ivy prefers bright indirect light.

🎯

Prickly Poppy is rated Expert care level, while Swedish Ivy is Easy.

📈

Prickly Poppy has moderate growth, while Swedish Ivy grows fast.

💡 Pro Tips For Comparing These Plants

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.
❄️ Winter: The plant typically dies back in winter. Allow seed heads to dry for self-seeding or collect seeds for planting in spring.
☀️ Summer: Ensure adequate sunlight and monitor for pests. Water deeply during dry periods.

Swedish Ivy Care Tips

Swedish Ivy is an easy-to-care-for houseplant that thrives in bright, indirect light and well-draining soil. Regular watering and occasional fertilization will keep it healthy and vibrant. It is toxic to pets, so keep it out of reach.

  • Pinch back the stems regularly to encourage bushier growth.
  • Rotate the plant regularly to ensure even growth on all sides.
  • Allow the top inch of soil to dry out between waterings to prevent root rot.
  • Fertilize regularly during the growing season to promote healthy growth.
  • Monitor for pests and treat promptly to prevent infestations.
❄️ Winter: Reduce watering frequency as the plant's growth slows down during the winter months. Ensure the plant is still receiving adequate light, even during shorter days. Avoid placing the plant near cold drafts or heating vents.
☀️ Summer: Water more frequently during the summer months as the plant's growth increases. Provide adequate ventilation to prevent fungal diseases. Protect the plant from intense direct sunlight, which can scorch the leaves.

⚠️ Common Problems & Solutions — Plant Care Comparison

Prickly Poppy

Common Issues: Root rot, powdery mildew, aphids
Solutions: Ensure well-draining soil and avoid overwatering for root rot. Treat powdery mildew with a fungicide. Control aphids with insecticidal soap or neem oil.

Swedish Ivy

Common Issues: Root rot, mealybugs, spider mites
Solutions: Root rot: Ensure proper drainage and avoid overwatering. Repot into fresh, well-draining soil. Mealybugs: Wipe away with a cotton swab dipped in rubbing alcohol or use insecticidal soap. Spider mites: Increase humidity and spray with insecticidal soap or neem oil.

❓ Frequently Asked Questions — Comparing These Plants

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.

Swedish Ivy

What are the light requirements for Swedish Ivy?

Swedish Ivy prefers bright, indirect light. Direct sunlight can scorch its delicate leaves, leading to unsightly brown spots. An east-facing window is often ideal, providing gentle morning sun. A north-facing window can also work, but growth may be slower. If you only have south or west-facing windows, position the plant a few feet away from the window or use sheer curtains to filter the light. Insufficient light can result in leggy growth and pale leaves. Observe your plant closely and adjust its location as needed to ensure it receives adequate but not excessive light. Regularly rotate the plant to ensure all sides receive even light exposure.

How do I care for Swedish Ivy?

Swedish Ivy thrives in bright, indirect light; avoid direct sunlight, which can scorch the leaves. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain a humidity level of 40-60% by misting regularly or using a humidifier. The ideal temperature range is 65-75°F (18-24°C). Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Prune regularly to maintain shape and encourage bushier growth. Repot in spring every 1-2 years into a slightly larger pot with well-draining potting mix. Monitor for pests such as spider mites and mealybugs, and treat promptly. Ensure good air circulation to prevent fungal diseases. Rotate the plant occasionally to promote even growth. Provide support if desired for climbing.

How do I propagate Swedish Ivy?

Swedish Ivy is easily propagated through stem cuttings, division, and air layering. For stem cuttings, take a 4-6 inch cutting from a healthy stem, removing the lower leaves. Place the cutting in water or directly into moist potting mix. Roots should develop within a few weeks. For division, gently separate the root ball of a mature plant into smaller sections and repot each section into its own pot. For air layering, make a small cut on a stem, wrap it with moist sphagnum moss, and cover with plastic wrap. Once roots develop, cut the stem below the roots and pot the new plant. Provide adequate light and moisture for successful propagation.

Last updated: May 4, 2026 — Plant care data reviewed and verified by our editorial team.