Common Myrtle vs Milkweed 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.
Milkweed
Asclepias spp.
Milkweed is a herbaceous perennial known for its milky sap and crucial role in supporting monarch butterflies. It typically grows 2-6 feet tall, featuring lance-shaped leaves arranged oppositely along the stem. Clusters of small, fragrant flowers bloom in shades of pink, orange, white, or purple. Milkweed is primarily an outdoor plant, thriving in sunny meadows and fields. People grow it to attract butterflies, support pollinator populations, and for its unique seed pods filled with silky fluff. Attempting to grow milkweed indoors is challenging due to its high light requirements and large size.
Quick Plant Comparison
| Feature | Common Myrtle | Milkweed |
|---|---|---|
| Light | Full sun to partial shade outdoors. Indoors, requires at least 6 hours of direct sunlight daily. | Full sun (at least 6-8 hours of direct sunlight daily) |
| Watering | Outdoors: Every 7-14 days depending on weather. Indoors: Every 7-10 days, adjusting for humidity and light. | Every 7-14 days, depending on weather and soil drainage |
| Humidity | 40-60% | 30-50% |
| Temperature | 15-27°C | 18-29°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate To Fast, Aggressive Spreader Via Rhizomes And Seeds |
| Max Height | Indoors: 0.6-1.2 meters (2-4 feet). Outdoors: 1-5 meters (3-16 feet) | N/A (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 soil, sandy or loamy |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly | 10 minutes weekly (mostly weeding and monitoring for pests) |
🔬 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. |
Milkweed
| Scientific Name | Asclepias spp. |
|---|---|
| Family | Apocynaceae |
| Native To | North and South America |
| Also Known As | Milkweed, Butterfly Flower, Silkweed |
| Leaves | Lance-shaped leaves, typically 4-6 inches long, arranged oppositely along the stem. Leaf color varies depending on the species, ranging from light green to bluish-green. |
| Flowers | Milkweed produces clusters of small, fragrant flowers in shades of pink, orange, white, or purple. Flowering typically occurs in summer. It is highly unlikely to flower indoors. |
📏 Size & Growth — Plant Comparison
Common Myrtle
Milkweed
🌱 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.
Milkweed
Methods: Seed, Root cuttings, Division
Difficulty: Easy
Tips: Seeds require cold stratification for optimal germination. Root cuttings should be taken in early spring. Divide established plants in spring or fall.
✨ 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
Milkweed
Milkweed is the sole food source for monarch butterfly caterpillars, making it essential for their survival. The plant's milky sap contains cardiac glycosides, which make the caterpillars and butterflies toxic to predators.
- ✓ Supports monarch butterfly populations
- ✓ Provides nectar for pollinators
- ✓ Adds beauty to the garden with its flowers and seed pods
- ✓ Low-maintenance once established
- ✓ Attracts beneficial insects
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Common Myrtle
Milkweed
🌞 Light Requirements
Common Myrtle
Full sun to partial shade outdoors. Indoors, requires at least 6 hours of direct sunlight daily.
Low light tolerant: ❌ No
Milkweed
Full sun (at least 6-8 hours of direct sunlight daily)
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.
Milkweed
Water deeply when the top inch of soil is dry. Avoid overwatering, which can lead to root rot. Signs of underwatering include wilting leaves. Signs of overwatering include yellowing leaves and soggy soil.
🌡️ Temperature & Humidity
Common Myrtle
Temperature: 15-27°C
Humidity: 40-60%
Milkweed
Temperature: 18-29°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.
Milkweed
Asclepias spp.Gardeners who want to support monarch butterflies and other pollinators in their outdoor spaces.
✅ Choose This Plant If...
- You want to support monarch butterfly populations.
- You have a sunny outdoor garden or meadow.
- You appreciate the unique beauty of native wildflowers.
- You enjoy watching butterflies and other pollinators in your garden.
- You want a low-maintenance perennial plant.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You don't have a sunny outdoor space.
- You are not prepared for its potential to spread aggressively.
- You are looking for an easy indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Common Myrtle has moderate growth, while Milkweed grows moderate to fast, aggressive spreader via rhizomes and seeds.
💡 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.
Milkweed Care Tips
Milkweed is primarily an outdoor plant and very difficult to grow indoors due to its high light requirements and potential for aggressive spread. Indoor cultivation requires intense supplemental lighting and careful monitoring of soil moisture. It is best suited for outdoor gardens to support monarch butterflies.
- Plant in well-draining soil in a sunny location.
- Monitor for aphids and spider mites, and treat promptly.
- Allow seed pods to mature and disperse seeds for natural propagation.
- Cut back dead stems in early spring.
- Avoid using pesticides that could harm monarch caterpillars.
⚠️ Common Problems & Solutions — Plant Care Comparison
Common Myrtle
Milkweed
❓ 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.
Milkweed
What are the light requirements for Milkweed?
Milkweed plants require a significant amount of sunlight to thrive and produce abundant blooms. Aim for at least 6 hours of direct sunlight per day. Inadequate light can lead to leggy growth, reduced flowering, and weakened plants.
How do I care for Milkweed?
Milkweed thrives with at least 6 hours of direct sunlight daily. Well-draining soil is essential; amend heavy clay soils with compost or sand. Water deeply when the top inch of soil feels dry, but avoid overwatering, which can lead to root rot. Fertilize sparingly, using a balanced fertilizer in spring to promote healthy growth and flowering.
How do I propagate Milkweed?
Milkweed can be propagated through several methods.
Last updated: May 2, 2026 — Plant care data reviewed and verified by our editorial team.