Chinese Forget-Me-Not vs Philodendron Selloum Plant Comparison

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

Chinese Forget-Me-Not

Chinese Forget-Me-Not

Cynoglossum amabile

VS
Philodendron Selloum

Philodendron Selloum

Thaumatophyllum bipinnatifidum (syn. Philodendron selloum)

Chinese Forget-Me-Not

Chinese Forget-Me-Not

Cynoglossum amabile

Cynoglossum amabile, commonly known as Chinese Forget-Me-Not, is a flowering herbaceous plant primarily grown outdoors as a garden ornamental. It features lance-shaped, grayish-green leaves and produces clusters of small, vibrant blue, pink, or white flowers in the spring and summer. It typically reaches a height of 30-60 cm. While admired for its delicate blooms and ease of cultivation in gardens, it is not ideally suited for indoor environments due to its high light requirements and need for consistent moisture and air circulation. People grow it for its beautiful flowers and ability to self-seed, creating a naturalized look in gardens.

Boraginaceae Asia, specifically China
✨ Features: Attracts pollinators, self-seeds readily, vibrant flower colors.
📖 Read Complete Chinese Forget-Me-Not Guide
Philodendron Selloum

Philodendron Selloum

Thaumatophyllum bipinnatifidum (syn. Philodendron selloum)

Thaumatophyllum bipinnatifidum, commonly known as Selloum, is a large, evergreen plant characterized by its deeply lobed, glossy green leaves. It is often grown as an ornamental plant, both indoors and outdoors, although it thrives best in warm, humid environments. While often referred to as a Philodendron, it was reclassified into the genus Thaumatophyllum. In its natural habitat, it can grow quite large, forming a trunk-like stem. People grow it for its dramatic foliage and tropical appearance, adding a lush, architectural element to landscapes and interiors. It is primarily an outdoor plant but can adapt to indoor conditions with proper care.

Araceae South America, specifically Brazil, Paraguay, Bolivia, and Argentina
✨ Features: Dramatic foliage, air purifying qualities (though not as significant as some other plants).
📖 Read Complete Philodendron Selloum Guide

Quick Plant Comparison

Feature Chinese Forget-Me-Not Philodendron Selloum
Light Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering. Bright, indirect light. Can tolerate some direct morning sun, but avoid intense afternoon sun.
Watering Every 2-3 days in hot weather, every 5-7 days in cooler weather, adjusting based on rainfall and soil drainage. Every 1-2 weeks, depending on environmental conditions and pot size.
Humidity 30-50% 40-70%
Temperature 15-24°C 18-24°C
Care Level Expert Moderate
Growth Rate Moderate Moderate
Max Height 30-60 cm 1-1.5 meters indoors
Pet Safety ❌ Toxic To Pets ❌ Toxic To Pets
Soil Well-drained, fertile soil with a slightly acidic to neutral pH (6.0-7.0). A mix of garden soil, compost, and perlite is suitable. Well-draining potting mix, such as a mix of peat moss, perlite, and pine bark.
Beginner Friendly ❌ No With Caution
Weekly Maintenance 5 minutes weekly (deadheading, watering) 15 minutes weekly

🔬 Botanical Information — Comparing These Plants

Chinese Forget-Me-Not

Scientific Name Cynoglossum amabile
Family Boraginaceae
Native To Asia, specifically China
Also Known As Chinese Forget-Me-Not, Hound's Tongue
Leaves The leaves are lance-shaped, grayish-green, and slightly hairy. They are typically 5-10 cm long and arranged alternately along the stems.
Flowers It produces clusters of small, five-petaled flowers in shades of blue, pink, or white. The flowers bloom profusely in spring and summer, creating a beautiful display.

Philodendron Selloum

Scientific Name Thaumatophyllum bipinnatifidum (syn. Philodendron selloum)
Family Araceae
Native To South America, specifically Brazil, Paraguay, Bolivia, and Argentina
Also Known As Split-leaf Philodendron, Selloum, Horsehead Philodendron, Lacy Tree Philodendron
Leaves The leaves are large, deeply lobed, and glossy green. They can grow up to 90 cm long and 60 cm wide. The lobes are irregular and give the leaves a distinctive, feathery appearance. New leaves emerge a lighter green and gradually darken with age.
Flowers It rarely flowers indoors. When it does flower, it produces a spadix and spathe, typical of plants in the Araceae family. The flowers are not particularly showy.

📏 Size & Growth — Plant Comparison

Chinese Forget-Me-Not

Height 30-60 cm
Spread 20-30 cm
Growth Rate Moderate
Growth Pattern It grows upright with branching stems, forming a bushy clump. It spreads primarily through self-seeding, creating a naturalized effect in the garden.

Philodendron Selloum

Height 1-1.5 meters indoors
Spread 1-2 meters indoors
Growth Rate Moderate
Growth Pattern It grows upright and outwards, forming a dense clump of foliage. Over time, it can develop a trunk-like stem. It does not spread aggressively via rhizomes like some other Philodendrons.

🌱 Propagation — Comparing Plant Growth

Chinese Forget-Me-Not

Methods: Seed, Division

Difficulty: Easy

Tips: Sow seeds directly in the garden in spring or fall. For division, carefully separate clumps in early spring or late fall and replant.

Philodendron Selloum

Methods: Stem cuttings, Division, Seed (rarely used)

Difficulty: Moderate

Tips: Take stem cuttings with aerial roots. Allow the cut end to callous over for a day or two before planting in moist potting mix. Keep the cutting warm and humid.

✨ Benefits & Features — Comparing Plant Value

Chinese Forget-Me-Not

Chinese Forget-Me-Not is known for its vibrant blue flowers and its tendency to self-seed readily, creating a naturalized look in gardens. It is a relatively low-maintenance plant that attracts pollinators, making it a popular choice for cottage gardens and borders.

  • ✓ Attracts pollinators to your garden.
  • ✓ Adds vibrant color to outdoor spaces.
  • ✓ Low-maintenance once established.
  • ✓ Self-seeds readily, creating a naturalized look.
  • ✓ Provides a charming cottage garden aesthetic.
  • ⚠️ Toxic to pets

Philodendron Selloum

Its deeply lobed leaves give it a unique and dramatic appearance. It's also relatively easy to propagate from stem cuttings. The plant's size and architectural form make it a standout feature in any space.

  • ✓ Adds a tropical aesthetic to your space.
  • ✓ Can improve indoor air quality.
  • ✓ Provides a sense of calm and connection to nature.
  • ✓ Its large leaves create a visually striking focal point.
  • ✓ Relatively low-maintenance once established.
  • 🌬️ NASA-verified air purifier
  • ⚠️ Toxic to pets

📅 Maintenance Schedule — Plant Care Comparison

Chinese Forget-Me-Not

Repotting Not applicable for outdoor plants. If grown in containers, repot every 1-2 years in spring.
Pruning Deadhead spent flowers to encourage continued blooming. Cut back foliage in late fall after flowering season.
Fertilizing Balanced slow-release fertilizer in spring. Optional: Liquid fertilizer diluted to half strength every 4-6 weeks during the growing season.
Seasonal Care Spring: Sow seeds, fertilize. Summer: Water regularly, deadhead spent flowers. Fall: Collect seeds, divide plants. Winter: Dormant, minimal watering.

Philodendron Selloum

Repotting Every 1-2 years, or when the plant becomes root-bound.
Pruning Remove yellowing or damaged leaves as needed. Prune to control size and shape.
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 winter as growth slows. Provide supplemental light if needed. Increase watering and fertilizing during the growing season (spring and summer).

🌞 Light Requirements

Chinese Forget-Me-Not

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

Low light tolerant: ❌ No

Philodendron Selloum

Bright, indirect light. Can tolerate some direct morning sun, but avoid intense afternoon sun.

Low light tolerant: ✅ Yes

💧 Watering Needs

Chinese Forget-Me-Not

Water regularly, especially during dry periods. Keep the soil consistently moist but not waterlogged. Overwatering can lead to root rot, while underwatering can cause wilting and reduced flowering. Check soil moisture regularly and water when the top inch of soil feels dry.

Philodendron Selloum

Water thoroughly when the top 2-3 inches of soil are dry. Allow excess water to drain away. Overwatering can lead to root rot, indicated by yellowing leaves and a musty smell. Underwatering results in drooping leaves and dry, crispy edges.

🌡️ Temperature & Humidity

Chinese Forget-Me-Not

Temperature: 15-24°C

Humidity: 30-50%

Philodendron Selloum

Temperature: 18-24°C

Humidity: 40-70%

🤔 Which Plant Is Right For You?

Chinese Forget-Me-Not

Chinese Forget-Me-Not

Cynoglossum amabile
Care: Expert Time: 5 minutes weekly (deadheading, watering) Beginner: No

Gardeners looking for a low-maintenance, self-seeding flowering plant for borders, cottage gardens, or naturalized areas.

✅ Choose This Plant If...

  • You want a low-maintenance flowering plant for your garden.
  • You desire a plant that attracts pollinators like bees and butterflies.
  • You appreciate a cottage garden aesthetic.
  • You want a plant that self-seeds easily, creating a naturalized look.
  • You want vibrant blue, pink, or white flowers in your garden.

❌ Skip This Plant If...

  • You are looking for an indoor plant.
  • You have pets that may ingest toxic plants.
  • You live in a very shady area with little sunlight.
📍 Ideal Location: Outdoor garden beds, borders, or containers in a sunny location.
🎨 Style: Cottage, Naturalistic, Bohemian
🏠 Apartment Friendly: No
⚠️ Contains pyrrolizidine alkaloids, which are toxic to dogs, cats, and horses. Symptoms include liver damage, photosensitization, and neurological issues. All parts of the plant are considered toxic.
Philodendron Selloum

Philodendron Selloum

Thaumatophyllum bipinnatifidum (syn. Philodendron selloum)
Care: Moderate Time: 15 minutes weekly Beginner: With-caution

Experienced plant enthusiasts who can provide ample space and attention to its specific needs.

✅ Choose This Plant If...

  • You want a bold, tropical statement plant.
  • You have a bright, indirect light location.
  • You are experienced with plant care and can manage its needs.
  • You appreciate its architectural foliage.
  • You are prepared to provide ample space for its growth.

❌ Skip This Plant If...

  • You have pets that might ingest the plant.
  • You have limited space.
  • You tend to overwater your plants.
📍 Ideal Location: Living room, sunroom, or any room with bright, indirect light.
🎨 Style: Tropical, Bohemian, Modern
🏠 Apartment Friendly: Limited
🌬️ Air Purifying: Yes (NASA verified)
⚠️ All parts of the plant contain calcium oxalate crystals, which are toxic to dogs, cats, and horses. Symptoms include oral irritation, excessive drooling, vomiting, and difficulty swallowing.

🎯 Quick Verdict

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

⚡ Key Differences Between These Plants

🎯

Chinese Forget-Me-Not is rated Expert care level, while Philodendron Selloum is Moderate.

💡 Pro Tips For Comparing These Plants

Chinese Forget-Me-Not Care Tips

Chinese Forget-Me-Nots are primarily outdoor plants. Indoor cultivation is challenging due to high light requirements and the need for good air circulation. They require consistent moisture and are prone to pests and diseases in poorly ventilated environments. Not recommended for indoor growing.

  • Deadhead spent flowers regularly to encourage more blooms.
  • Provide well-draining soil to prevent root rot.
  • Water deeply but infrequently, allowing the soil to dry slightly between waterings.
  • Apply a balanced fertilizer in the spring to promote healthy growth.
  • Protect from strong winds, which can damage the delicate stems.
❄️ Winter: In colder climates, provide a layer of mulch around the base of the plant to protect the roots from freezing. Reduce watering during the dormant season.
☀️ Summer: Water regularly, especially during hot and dry periods. Deadhead spent flowers to encourage continued blooming. Provide some afternoon shade in extremely hot climates to prevent scorching.

Philodendron Selloum Care Tips

While adaptable to indoor conditions, Selloum prefers bright, indirect light and well-draining soil. Maintaining adequate humidity and avoiding overwatering are crucial for its health. It can become quite large, requiring ample space. Regular cleaning of the leaves will keep it looking its best.

  • Wipe the leaves regularly with a damp cloth to remove dust and improve photosynthesis.
  • Provide a moss pole or other support for the plant to climb, mimicking its natural growth habit.
  • Rotate the plant regularly to ensure even growth on all sides.
  • Avoid placing the plant near drafts or heating vents.
  • Monitor for pests regularly and treat promptly.
❄️ Winter: Reduce watering frequency as the plant's growth slows down. Ensure the plant is not exposed to cold drafts. Provide supplemental light if needed, especially in regions with short days.
☀️ Summer: Water more frequently during the summer months as the plant actively grows. Protect the plant from intense afternoon sun to prevent leaf burn. Increase humidity by misting the leaves regularly.

⚠️ Common Problems & Solutions — Plant Care Comparison

Chinese Forget-Me-Not

Common Issues: Powdery mildew, Aphids, Root rot, Leggy growth due to insufficient light
Solutions: Powdery mildew: Improve air circulation, apply fungicide. Aphids: Insecticidal soap or neem oil. Root rot: Ensure well-draining soil, reduce watering frequency. Leggy growth: Provide more sunlight.

Philodendron Selloum

Common Issues: Yellowing leaves, Root rot, Pest infestations (spider mites, mealybugs), Leaf spot
Solutions: Yellowing leaves: Adjust watering schedule and check for nutrient deficiencies. | Root rot: Repot in fresh, well-draining soil and reduce watering frequency. | Pest infestations: Treat with insecticidal soap or neem oil. | Leaf spot: Improve air circulation and avoid wetting the foliage.

❓ Frequently Asked Questions — Comparing These Plants

Chinese Forget-Me-Not

What are the light requirements for Chinese Forget-Me-Not?

Chinese Forget-Me-Not performs best in partial shade, especially during the hottest part of the day. While it can tolerate full sun, excessive direct sunlight can scorch the leaves and fade the flower color. An east-facing window or a location with dappled sunlight is ideal. If growing indoors, supplement with artificial light if necessary, especially during winter months. Insufficient light can lead to leggy growth and reduced flowering. Rotate the plant regularly to ensure even light exposure. Watch for signs of overexposure, such as bleached leaves or stunted growth.

How do I care for Chinese Forget-Me-Not?

Chinese Forget-Me-Not thrives in well-draining soil and prefers a location with partial shade to full sun. Water regularly, keeping the soil consistently moist but not waterlogged, especially during the blooming season. Fertilize every 2-4 weeks with a balanced liquid fertilizer to encourage abundant blooms. Deadhead spent flowers to promote continuous flowering. Maintain a humidity level between 40-60%. Repot annually in spring, using a slightly larger pot if needed. Protect from frost in colder climates. Ensure good air circulation to prevent fungal diseases. Monitor for pests like aphids and spider mites. Prune lightly to maintain shape and remove any dead or damaged foliage. Provide support if the plant becomes leggy.

How do I propagate Chinese Forget-Me-Not?

Chinese Forget-Me-Not can be propagated by seeds, division, or stem cuttings.

Philodendron Selloum

What are the light requirements for Philodendron Selloum?

Philodendron Selloum flourishes in bright, indirect light. Avoid direct sunlight, especially during the hottest part of the day, as it can cause leaf burn. An east-facing window is ideal, or a spot near a south or west-facing window that is filtered by a sheer curtain. If the plant is not receiving enough light, the leaves may become pale or the stems may become leggy. Rotate the plant regularly to ensure even growth on all sides. Artificial grow lights can be used to supplement natural light, especially during winter months.

How do I care for Philodendron Selloum?

Philodendron Selloum thrives in bright, indirect light, avoiding direct sunlight which can scorch its leaves. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain. Use a well-draining potting mix to prevent root rot. Maintain humidity levels around 60-70% through misting or a humidifier. Fertilize monthly during the growing season (spring and summer) with a balanced liquid fertilizer. Prune any yellow or damaged leaves to encourage healthy growth. Repot every 1-2 years as needed, when the plant becomes root-bound. Provide support for mature plants as they grow larger. Protect from drafts and sudden temperature changes.

How do I propagate Philodendron Selloum?

Philodendron Selloum can be propagated through stem cuttings, division, or air layering. For stem cuttings, take a cutting with at least one node and place it in water or moist soil. For division, carefully separate the plant into multiple sections, ensuring each section has roots. For air layering, make a small cut on the stem, wrap it in moist sphagnum moss, and cover it with plastic wrap until roots develop. Plant the rooted cutting or division in well-draining soil. Maintain high humidity during propagation.

Last updated: May 11, 2026 — Plant care data reviewed and verified by our editorial team.