Common Myrtle vs Perennial Flax Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Common Myrtle
Myrtus communis
Myrtus communis, or Common Myrtle, is an evergreen shrub or small tree known for its aromatic foliage and attractive white flowers followed by dark berries. It is primarily an outdoor plant, thriving in warm climates. People grow it for its ornamental value in gardens, hedges, and topiary. It is also used in traditional medicine and culinary applications. While it can be brought indoors, it requires very specific conditions to thrive and often struggles to maintain its health and vigor.
Perennial Flax
Linum perenne
Perennial Flax (Linum perenne) is a herbaceous perennial known for its delicate, airy appearance and profuse display of sky-blue flowers. It typically grows to a height of 30-60 cm. The plant features slender stems and narrow, lance-shaped leaves. While primarily an outdoor plant, it is grown for its ornamental value in gardens and meadows, attracting pollinators. The flowers are short-lived, opening in the morning and closing by afternoon, but the plant produces a continuous succession of blooms throughout the flowering season. It is not naturally an indoor plant.
Quick Plant Comparison
| Feature | Common Myrtle | Perennial Flax |
|---|---|---|
| Light | Full sun to partial shade outdoors. Indoors, requires at least 6 hours of direct sunlight daily. | Full sun |
| Watering | Outdoors: Every 7-14 days depending on weather. Indoors: Every 7-10 days, adjusting for humidity and light. | Every 7-10 days, depending on weather and soil drainage |
| Humidity | 40-60% | 30-50% |
| Temperature | 15-27°C | 15-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | Indoors: 0.6-1.2 meters (2-4 feet). Outdoors: 1-5 meters (3-16 feet) | N/A (Outdoor plant, not suitable for indoor growing) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining potting mix with added perlite or sand. | Well-draining, sandy or loamy soil |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly | 5 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Common Myrtle
| Scientific Name | Myrtus communis |
|---|---|
| Family | Myrtaceae |
| Native To | Mediterranean region |
| Also Known As | Common Myrtle, True Myrtle |
| Leaves | The leaves are small, oval-shaped, and glossy green. They are arranged oppositely on the stems and have a distinct aromatic scent when crushed. |
| Flowers | Outdoors, it produces small, fragrant white flowers with prominent stamens in late spring to early summer. Indoors, flowering is less common but possible with optimal conditions. |
Perennial Flax
| Scientific Name | Linum perenne |
|---|---|
| Family | Linaceae |
| Native To | Europe, North Africa, Asia |
| Also Known As | Perennial Flax, Blue Flax, Flax |
| Leaves | Narrow, lance-shaped leaves, typically blue-green in color, arranged alternately along the stems. |
| Flowers | Flowers are typically sky-blue, about 2.5 cm in diameter, with five petals. They open in the morning and close by afternoon. Rarely flowers indoors. |
📏 Size & Growth — Plant Comparison
Common Myrtle
Perennial Flax
🌱 Propagation — Comparing Plant Growth
Common Myrtle
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in late summer. Dip in rooting hormone and plant in well-draining soil. Keep moist and provide indirect light.
Perennial Flax
Methods: Seed, Division
Difficulty: Easy
Tips: Sow seeds in spring or fall. Divide established plants in spring or fall. Ensure good drainage for successful propagation.
✨ Benefits & Features — Comparing Plant Value
Common Myrtle
Myrtus communis is known for its highly aromatic foliage, which releases a pleasant scent when crushed. It also produces attractive white flowers followed by dark berries, adding to its ornamental appeal.
- ✓ Aromatic foliage provides a pleasant scent.
- ✓ Attractive flowers and berries add visual interest.
- ✓ Can be used in culinary applications.
- ✓ Historically significant plant with cultural symbolism.
- ✓ Can be shaped into hedges or topiary.
- ⚠️ Toxic to pets
Perennial Flax
Perennial Flax is known for its delicate, blue flowers that open in the morning and close by afternoon. It is a relatively low-maintenance perennial that attracts pollinators and is drought-tolerant once established.
- ✓ Attracts pollinators like bees and butterflies.
- ✓ Adds a delicate, airy texture to the garden.
- ✓ Provides a long season of blue flowers.
- ✓ Drought-tolerant once established, reducing water needs.
- ✓ Relatively low-maintenance, freeing up gardening time.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Common Myrtle
Perennial Flax
🌞 Light Requirements
Common Myrtle
Full sun to partial shade outdoors. Indoors, requires at least 6 hours of direct sunlight daily.
Low light tolerant: ❌ No
Perennial Flax
Full sun
Low light tolerant: ❌ No
💧 Watering Needs
Common Myrtle
Water thoroughly when the top inch of soil is dry. Overwatering can lead to root rot, indicated by yellowing leaves and a musty smell. Underwatering results in wilting and dry, crispy leaves. Ensure good drainage.
Perennial Flax
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Ensure good drainage. Signs of underwatering include wilting and yellowing leaves. Overwatering can cause root rot and fungal diseases.
🌡️ Temperature & Humidity
Common Myrtle
Temperature: 15-27°C
Humidity: 40-60%
Perennial Flax
Temperature: 15-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Common Myrtle
Myrtus communisExperienced gardeners looking for a fragrant, ornamental plant to grow outdoors in suitable climates.
✅ Choose This Plant If...
- You appreciate fragrant foliage and flowers.
- You live in a Mediterranean climate.
- You want to create a formal garden or topiary.
- You are an experienced gardener looking for a rewarding challenge.
- You want to use the plant for culinary or medicinal purposes.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You cannot provide ample direct sunlight indoors.
- You are a beginner gardener.
Perennial Flax
Linum perenneGardeners looking for a low-maintenance, flowering perennial for sunny locations.
✅ Choose This Plant If...
- You want a low-maintenance perennial for a sunny garden.
- You want to attract pollinators to your garden.
- You appreciate delicate, blue flowers.
- You have well-draining soil.
- You live in a climate with mild winters.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You don't have a sunny outdoor space.
- You are looking for an easy indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Common Myrtle has moderate growth, while Perennial Flax grows moderate.
💡 Pro Tips For Comparing These Plants
Common Myrtle Care Tips
Common Myrtle is primarily an outdoor plant and requires specific conditions to thrive indoors, including ample direct sunlight, well-draining soil, and moderate humidity. It is prone to pests and diseases and requires regular monitoring. Maintaining its health indoors can be challenging.
- Provide excellent drainage to prevent root rot.
- Ensure ample direct sunlight, especially when grown indoors.
- Prune regularly to maintain shape and encourage bushier growth.
- Monitor for pests and diseases and treat promptly.
- Use rainwater or distilled water to avoid mineral buildup in the soil.
Perennial Flax Care Tips
Perennial Flax is primarily an outdoor plant and is challenging to grow indoors due to its high light requirements. It needs full sun and well-draining soil. Indoor attempts often result in leggy growth and poor flowering. It is toxic to pets.
- Ensure well-draining soil to prevent root rot.
- Provide full sun for optimal flowering.
- Deadhead spent flowers regularly to encourage more blooms.
- Apply a balanced fertilizer in spring.
- Protect from excessive moisture in winter.
⚠️ Common Problems & Solutions — Plant Care Comparison
Common Myrtle
Perennial Flax
❓ Frequently Asked Questions — Comparing These Plants
Common Myrtle
What are the light requirements for Common Myrtle?
Common Myrtle requires bright, indirect light to thrive indoors. A south- or east-facing window is ideal, providing ample sunlight without direct exposure, which can scorch the leaves. If natural light is insufficient, supplement with a grow light. Rotate the plant regularly to ensure even growth on all sides. Signs of insufficient light include leggy growth and pale leaves. Avoid placing the plant in dark corners or areas with minimal light exposure. The goal is to mimic the bright, sunny conditions of its native Mediterranean habitat.
How do I care for Common Myrtle?
Common Myrtle thrives indoors with bright, indirect light. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain a consistent temperature between 60-75°F (15-24°C). Humidity levels should be moderate, around 40-60%. 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 every 2-3 years into a slightly larger pot with well-draining potting mix. Protect from drafts and sudden temperature changes. Monitor for pests like spider mites and scale, and treat promptly. Provide consistent care, avoiding extremes in temperature, watering, and light.
How do I propagate Common Myrtle?
Common Myrtle can be propagated through stem cuttings or air layering. For 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 cutting in a well-draining potting mix and keep it moist. Cover with a plastic bag to maintain humidity. Rooting should occur in 4-6 weeks. For air layering, make a small cut on a stem, wrap it with moist sphagnum moss, and cover with plastic wrap. Secure the plastic wrap with tape. Once roots develop, cut the stem below the roots and plant it in a pot. Both methods require patience and consistent moisture.
Perennial Flax
What are the light requirements for Perennial Flax?
Perennial Flax requires a minimum of six hours of direct sunlight per day to thrive and produce abundant blooms. A south-facing location is ideal, but east or west-facing exposures can also work if they provide sufficient sunlight. Insufficient light can lead to leggy growth, reduced flowering, and pale foliage. If growing indoors, place the plant near a sunny window or supplement with artificial grow lights. Rotate the plant regularly to ensure even light exposure on all sides. When transplanting, choose a location that receives full sun throughout the day. Be mindful of shadows cast by trees or buildings, especially during the shorter days of winter.
How do I care for Perennial Flax?
Perennial Flax thrives in full sun and well-drained soil. Water deeply but infrequently, allowing the soil to dry out between waterings. Amend heavy clay soils with compost or other organic matter to improve drainage. Fertilize lightly in spring with a balanced fertilizer to encourage blooming. Deadhead spent flowers to promote continued flowering. Cut back the plant after blooming to maintain its shape and encourage bushier growth. Provide support if necessary, as the stems can become leggy. Protect from excessive winter moisture in colder climates. Mulch around the base of the plant to retain moisture and suppress weeds. Monitor for pests and diseases, and treat promptly if necessary. Divide established plants every few years to rejuvenate them.
How do I propagate Perennial Flax?
Perennial Flax can be propagated by seed, division, or stem cuttings.
Last updated: May 6, 2026 — Plant care data reviewed and verified by our editorial team.