Princess Flower vs Pulmonaria Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Princess Flower
Tibouchina urvilleana
Tibouchina urvilleana, commonly known as Princess Flower, is a fast-growing evergreen shrub or small tree prized for its vibrant purple flowers. Native to Brazil, it typically grows outdoors in warm climates. It features velvety, dark green leaves and produces profuse blooms throughout the warmer months. While it can be grown in containers, it requires significant sunlight and humidity to thrive, making it challenging to maintain indoors long-term. People grow it for its showy flowers and tropical appearance.
Pulmonaria
Pulmonaria officinalis
Pulmonaria officinalis, commonly known as lungwort, is a herbaceous perennial plant native to Europe. It is characterized by its distinctive spotted leaves, which are typically green with white or silver markings. The plant forms a low-growing clump and produces clusters of small, bell-shaped flowers that change color from pink to blue as they mature. Lungwort is primarily grown outdoors in gardens for its attractive foliage and early spring blooms. It thrives in shady, woodland-like conditions. While it can be attempted indoors, it requires very specific conditions and is generally not well-suited for indoor cultivation.
Quick Plant Comparison
| Feature | Princess Flower | Pulmonaria |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering. | Partial shade to full shade. Avoid direct sunlight, especially during the hottest part of the day. |
| Watering | Every 3-7 days, depending on environmental conditions and pot size. | Every 3-5 days, depending on environmental conditions |
| Humidity | 50-70% | 40-60% |
| Temperature | 18-27°C | 13-18°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | 1-2 meters (indoors, rarely reaches outdoor size) | 20-30 cm (indoors unlikely to reach this) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining, slightly acidic soil mix. A mix of potting soil, peat moss, and perlite is suitable. | Well-draining, humus-rich soil |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly | 15 minutes weekly (outdoor) |
🔬 Botanical Information — Comparing These Plants
Princess Flower
| Scientific Name | Tibouchina urvilleana |
|---|---|
| Family | Melastomataceae |
| Native To | Brazil |
| Also Known As | Princess Flower, Glory Bush, Lasiandra |
| Leaves | Oppositely arranged, ovate to lance-shaped leaves with a velvety texture. The leaves are typically dark green and can grow up to 15 cm long. |
| Flowers | Produces profuse, showy purple flowers with prominent stamens. Flowers are typically 7-10 cm in diameter. Flowering is less likely indoors due to insufficient light. |
Pulmonaria
| Scientific Name | Pulmonaria officinalis |
|---|---|
| Family | Boraginaceae |
| Native To | Europe |
| Also Known As | Lungwort, Common Lungwort, Jerusalem Cowslip, Spotted Dog |
| Leaves | The leaves of Pulmonaria are ovate to lance-shaped, typically 10-25 cm long, and have a rough texture. They are usually green with distinctive white or silver spots, although some varieties have more pronounced variegation. The spots are caused by air pockets within the leaf tissue. |
| Flowers | Pulmonaria produces clusters of small, bell-shaped flowers in early spring. The flowers are typically pink when they first open, then gradually turn blue as they mature. This color change is due to changes in pH levels within the petals. Flowering is unlikely indoors. |
📏 Size & Growth — Plant Comparison
Princess Flower
Pulmonaria
🌱 Propagation — Comparing Plant Growth
Princess Flower
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take stem cuttings in spring or summer. Dip the cut end in rooting hormone and plant in moist potting mix. Keep the cuttings in a warm, humid environment until roots develop.
Pulmonaria
Methods: Division, Seed
Difficulty: Moderate
Tips: Divide established clumps in early spring or fall. Sow seeds in a cold frame in autumn or early spring.
✨ Benefits & Features — Comparing Plant Value
Princess Flower
The velvety texture of the leaves and the vibrant purple color of the flowers make this plant stand out. It's also a fast grower, quickly filling in garden spaces.
- ✓ Provides vibrant color to gardens and patios.
- ✓ Attracts pollinators like bees and butterflies.
- ✓ Can be pruned into a desired shape.
- ✓ Offers a tropical aesthetic.
- ✓ Can be grown in containers on patios or balconies.
- ⚠️ Toxic to pets
Pulmonaria
The most unique characteristic of Pulmonaria is its spotted leaves, which provide visual interest even when the plant is not in bloom. The flowers also change color from pink to blue as they mature, adding another layer of appeal. It is also relatively deer-resistant.
- ✓ Attracts pollinators to your garden.
- ✓ Adds visual interest with its unique spotted foliage.
- ✓ Provides early spring color to shady areas.
- ✓ Deer-resistant, protecting your garden from damage.
- ✓ Can be used as a ground cover in woodland gardens.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Princess Flower
Pulmonaria
🌞 Light Requirements
Princess Flower
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal flowering.
Low light tolerant: ❌ No
Pulmonaria
Partial shade to full shade. Avoid direct sunlight, especially during the hottest part of the day.
Low light tolerant: ❌ No
💧 Watering Needs
Princess Flower
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Allow excess water to drain away. Signs of underwatering include wilting leaves; signs of overwatering include yellowing leaves and soggy soil.
Pulmonaria
Keep the soil consistently moist, but not waterlogged. Water when the top inch of soil feels dry to the touch. Overwatering can lead to root rot, while underwatering can cause the leaves to wilt and brown. Ensure good drainage.
🌡️ Temperature & Humidity
Princess Flower
Temperature: 18-27°C
Humidity: 50-70%
Pulmonaria
Temperature: 13-18°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Princess Flower
Tibouchina urvilleanaExperienced gardeners in warm climates who want a showy flowering shrub for their garden.
✅ Choose This Plant If...
- You live in a warm climate with plenty of sunshine.
- You want a plant with vibrant purple flowers.
- You have experience caring for demanding plants.
- You have a greenhouse or sunroom to provide adequate light and humidity.
- You are willing to provide regular pruning and fertilization.
❌ Skip This Plant If...
- You live in a cold climate with limited sunlight.
- You are a beginner gardener.
- You have pets that may ingest the plant.
- You don't have time for regular pruning and fertilization.
- You don't have a bright, sunny location.
Pulmonaria
Pulmonaria officinalisExperienced gardeners looking for a shade-loving plant with unique foliage and early spring blooms in an outdoor garden.
✅ Choose This Plant If...
- You want a shade-loving plant with unique spotted foliage.
- You appreciate early spring blooms that attract pollinators.
- You are looking for a deer-resistant plant for your garden.
- You enjoy plants with interesting color-changing flowers.
- You have a cool, shady spot in your garden that needs some color.
❌ Skip This Plant If...
- You are looking for an easy-to-grow indoor plant.
- You have pets that might ingest the plant.
- You do not have a cool, shady outdoor space.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Princess Flower has fast growth, while Pulmonaria grows moderate.
💡 Pro Tips For Comparing These Plants
Princess Flower Care Tips
Princess Flower is primarily an outdoor plant that requires full sun and high humidity. Indoor cultivation is challenging due to the difficulty of providing adequate light and humidity. It needs regular watering and fertilization. Expect reduced flowering and potential pest issues indoors.
- Provide at least 6 hours of direct sunlight daily.
- Water thoroughly when the top inch of soil is dry.
- Fertilize regularly during the growing season.
- Prune after flowering to maintain shape.
- Monitor for pests and diseases regularly.
Pulmonaria Care Tips
Pulmonaria is primarily an outdoor plant that prefers cool, shady conditions. Indoor cultivation is challenging due to the need for consistent moisture, high humidity, and cool temperatures. It is prone to fungal diseases and root rot if not properly cared for indoors. Requires very bright indirect light, which is difficult to provide indoors.
- Provide consistent moisture, especially during dry periods.
- Protect from direct sunlight to prevent leaf scorch.
- Amend the soil with compost or leaf mold to improve drainage and fertility.
- Divide plants every few years to prevent overcrowding.
- Monitor for pests and diseases regularly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Princess Flower
Pulmonaria
❓ Frequently Asked Questions — Comparing These Plants
Princess Flower
What are the light requirements for Princess Flower?
Princess Flower thrives in bright, indirect sunlight. Ideally, it needs at least 6 hours of sunlight per day to produce abundant blooms. A location near an east- or west-facing window is often suitable indoors. Avoid direct afternoon sun, which can scorch the leaves. If grown outdoors, provide partial shade during the hottest part of the day. Insufficient light can result in fewer blooms and leggy growth. Rotate the plant regularly to ensure even light exposure on all sides. During the winter months, when sunlight is less intense, consider supplementing with artificial grow lights.
How do I care for Princess Flower?
Princess Flower requires well-draining, acidic soil with a pH of 5.5 to 6.5. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain. Fertilize every 2-4 weeks during the growing season (spring to fall) with a balanced fertilizer formulated for flowering plants. Prune regularly to maintain shape and encourage bushier growth and more blooms. Provide bright, indirect sunlight for at least 6 hours a day. Maintain a moderate humidity level, especially indoors. Protect from frost and freezing temperatures. Repot every 1-2 years as needed, using a slightly larger pot. Monitor for pests like aphids and spider mites, and treat promptly if detected. Ensure good air circulation to prevent fungal diseases.
How do I propagate Princess Flower?
Princess Flower can be propagated using stem cuttings. Take 4-6 inch cuttings from new growth in spring or summer. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cuttings in a well-draining potting mix. Keep the soil moist and provide bright, indirect light. Rooting typically occurs within 4-8 weeks. Division can be done when repotting mature plants, carefully separating the root ball. Keikis are not common on Princess Flower.
Pulmonaria
What are the light requirements for Pulmonaria?
Pulmonaria thrives in partial to full shade. In regions with hot summers, full shade is essential to prevent leaf scorch. Morning sun is tolerated, but avoid direct afternoon sun. The ideal location receives dappled sunlight throughout the day. Insufficient light can result in fewer blooms and less vibrant foliage.
How do I care for Pulmonaria?
Pulmonaria prefers partial to full shade, especially in warmer climates. Direct sunlight can scorch the leaves. The ideal location is one that receives morning sun and afternoon shade. Plant in well-draining, humus-rich soil that retains moisture. Water regularly, especially during dry periods, keeping the soil consistently moist but not soggy.
How do I propagate Pulmonaria?
Pulmonaria is most easily propagated by division in early spring or fall. Carefully dig up the plant and separate the root ball into smaller clumps, ensuring each clump has healthy roots and foliage. Replant the divisions in well-draining, humus-rich soil. Keep the soil consistently moist until the plants are established.
Last updated: April 21, 2026 — Plant care data reviewed and verified by our editorial team.