Immortelle vs Pinwheel Jasmine Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Immortelle
Helichrysum arenarium
Helichrysum arenarium, commonly known as Immortelle or Dwarf Everlast, is a perennial herbaceous plant characterized by its woolly, grey-green foliage and clusters of bright yellow, papery flowers. It typically grows to a height of 10-30 cm. Native to sandy and dry habitats, it is valued for its long-lasting flowers that retain their color and shape even when dried. This makes it a popular choice for dried flower arrangements and potpourri. It is primarily an outdoor plant, thriving in sunny, well-drained conditions. While it can be grown in containers, it requires specific conditions to flourish indoors.
Pinwheel Jasmine
Tabernaemontana divaricata
Tabernaemontana divaricata, commonly known as Pinwheel Jasmine, is a shrub or small tree prized for its fragrant, pinwheel-shaped flowers. It typically grows to a height of 5-8 feet outdoors. The plant features glossy, dark green leaves and produces clusters of white, waxy flowers that emit a strong, sweet fragrance, especially in the evening. While it can be grown indoors, it requires very bright light and high humidity to thrive and flower well. It is primarily grown for its ornamental value and fragrant blooms.
Quick Plant Comparison
| Feature | Immortelle | Pinwheel Jasmine |
|---|---|---|
| Light | Full sun | Bright indirect light to full sun (at least 6 hours of direct sunlight) |
| Watering | Every 1-2 weeks, depending on environmental conditions | Every 7-10 days, depending on environmental conditions |
| Humidity | 30-50% | 50-70% |
| Temperature | 15-25°C | 18-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 0.1-0.3 meters (indoors, likely smaller) | 0.6-1.2 meters (2-4 feet) indoors |
| Pet Safety | ✅ Safe | ❌ Toxic To Pets |
| Soil | Well-draining sandy or loamy soil | Well-draining potting mix (e.g., a mix of peat moss, perlite, and vermiculite) |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 10 minutes weekly | 30 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Immortelle
| Scientific Name | Helichrysum arenarium |
|---|---|
| Family | Asteraceae |
| Native To | Europe and Asia |
| Also Known As | Dwarf Everlast, Immortelle, Sandy Everlasting, Goldilocks |
| Leaves | The leaves are small, narrow, and covered in fine, silvery-grey hairs, giving them a woolly texture. They are typically lance-shaped and arranged alternately along the stems. |
| Flowers | Helichrysum arenarium produces clusters of bright yellow, papery flowers in summer. The flowers are small and daisy-like, with a distinctive papery texture that allows them to retain their shape and color when dried. Flowering is unlikely indoors. |
Pinwheel Jasmine
| Scientific Name | Tabernaemontana divaricata |
|---|---|
| Family | Apocynaceae |
| Native To | India, Myanmar, Thailand |
| Also Known As | Pinwheel Jasmine, Crape Jasmine, East Indian Rosebay, Adam's Apple |
| Leaves | The leaves are glossy, dark green, and oblong in shape, typically 5-15 cm (2-6 inches) long. They have a smooth texture and are arranged oppositely on the stems. |
| Flowers | It can flower indoors if provided with sufficient light and humidity. The flowers are white, waxy, and pinwheel-shaped, with 5-7 petals. They are highly fragrant, especially in the evening. |
📏 Size & Growth — Plant Comparison
Immortelle
Pinwheel Jasmine
🌱 Propagation — Comparing Plant Growth
Immortelle
Methods: Seed, Division, Stem cuttings
Difficulty: Moderate
Tips: For seeds, sow in spring in well-draining soil. Division can be done in spring or fall. Stem cuttings should be taken in late spring or early summer and rooted in a well-draining medium.
Pinwheel Jasmine
Methods: Stem cuttings, Air layering
Difficulty: Moderate
Tips: Take stem cuttings in spring or summer. Dip the cut end in rooting hormone and plant in moist potting mix. Maintain high humidity by covering with a plastic bag or humidity dome until roots develop.
✨ Benefits & Features — Comparing Plant Value
Immortelle
The flowers of Helichrysum arenarium retain their color and shape when dried, making them ideal for dried flower arrangements. It is also known for its aromatic foliage, which releases a pleasant scent when touched.
- ✓ Provides beautiful dried flowers for arrangements.
- ✓ Attracts pollinators to the garden.
- ✓ Drought-tolerant and low-maintenance in suitable conditions.
- ✓ Adds visual interest with its silver-grey foliage and bright yellow flowers.
- ✓ Aromatic foliage releases a pleasant scent.
- 🐾 Pet Safe
Pinwheel Jasmine
The pinwheel shape of the flowers and their intense fragrance are unique. The plant's glossy, dark green leaves also add to its ornamental appeal.
- ✓ Aesthetic appeal with glossy green leaves and fragrant flowers.
- ✓ Can improve mood with its pleasant scent.
- ✓ Offers a touch of the tropics indoors.
- ✓ Can be used in floral arrangements.
- ✓ Provides a sense of accomplishment when successfully grown.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Immortelle
Pinwheel Jasmine
🌞 Light Requirements
Immortelle
Full sun
Low light tolerant: ❌ No
Pinwheel Jasmine
Bright indirect light to full sun (at least 6 hours of direct sunlight)
Low light tolerant: ❌ No
💧 Watering Needs
Immortelle
Water thoroughly when the top inch of soil is dry. Avoid overwatering, as this can lead to root rot. Allow the soil to dry out slightly between waterings. Signs of overwatering include yellowing leaves and a soggy soil surface. Underwatering is indicated by wilting and dry, crispy leaves.
Pinwheel Jasmine
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 root rot, while underwatering can cause wilting and leaf drop.
🌡️ Temperature & Humidity
Immortelle
Temperature: 15-25°C
Humidity: 30-50%
Pinwheel Jasmine
Temperature: 18-27°C
Humidity: 50-70%
🤔 Which Plant Is Right For You?
Immortelle
Helichrysum arenariumExperienced gardeners looking for a drought-tolerant, low-maintenance plant for sunny outdoor locations.
✅ Choose This Plant If...
- You want a plant with flowers that dry beautifully and retain their color.
- You have a sunny, well-drained garden or rock garden.
- You are looking for a drought-tolerant plant.
- You appreciate aromatic foliage.
- You want to attract pollinators to your garden.
❌ Skip This Plant If...
- You do not have a location with full sun.
- You tend to overwater plants.
- You are looking for a low-maintenance indoor plant.
Pinwheel Jasmine
Tabernaemontana divaricataExperienced plant enthusiasts who can provide the necessary light and humidity for optimal growth and flowering.
✅ Choose This Plant If...
- You love fragrant flowers and are willing to provide the necessary care.
- You have a very bright, sunny location in your home.
- You are experienced with caring for tropical plants.
- You want a plant that can be pruned and shaped.
- You appreciate plants with cultural significance.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You cannot provide bright light or high humidity.
- You are a beginner plant owner.
- You prefer low-maintenance plants.
- You dislike strong fragrances.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Immortelle needs full sun, while Pinwheel Jasmine prefers bright indirect light to full sun (at least 6 hours of direct sunlight).
💡 Pro Tips For Comparing These Plants
Immortelle Care Tips
Helichrysum arenarium is primarily an outdoor plant that requires full sun and well-drained soil. Growing it indoors can be challenging due to its high light requirements. It needs very bright light and careful watering to prevent root rot. Regular fertilization is also necessary to promote healthy growth and flowering.
- Ensure excellent drainage to prevent root rot.
- Provide at least 6-8 hours of direct sunlight daily.
- Water deeply but infrequently, allowing the soil to dry out between waterings.
- Fertilize sparingly, as excessive fertilization can reduce flowering.
- Prune after flowering to maintain shape and encourage bushier growth.
Pinwheel Jasmine Care Tips
Pinwheel Jasmine requires bright light, consistent moisture, and high humidity to thrive indoors. It is challenging to maintain indoors due to its need for intense light and specific humidity requirements. Regular pruning is necessary to maintain shape and encourage flowering.
- Provide bright, indirect light for at least 6 hours a day.
- Maintain high humidity by misting regularly or using a humidifier.
- Water thoroughly when the top inch of soil is dry.
- Fertilize every 4-6 weeks during the growing season with a balanced liquid fertilizer.
- Prune after flowering to encourage new growth and maintain shape.
⚠️ Common Problems & Solutions — Plant Care Comparison
Immortelle
Pinwheel Jasmine
❓ Frequently Asked Questions — Comparing These Plants
Immortelle
What are the light requirements for Immortelle?
Immortelle requires ample sunlight to produce abundant and vibrant blooms. Aim for at least 6 hours of direct sunlight per day. In hotter climates, provide some afternoon shade to prevent scorching. If grown indoors, place Immortelle near a south-facing window where it can receive maximum light exposure. Insufficient light can lead to leggy growth, reduced flowering, and faded colors. Rotate the plant regularly to ensure even light exposure on all sides. During winter months, when sunlight is limited, consider supplementing with grow lights to maintain optimal light levels.
How do I care for Immortelle?
Immortelle thrives with proper care. Provide full sun to partial shade, ensuring at least six hours of sunlight daily for optimal blooming. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain. Use well-draining soil to prevent root rot. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced liquid fertilizer, diluted to half strength. Deadhead spent flowers to encourage continuous blooming. Maintain moderate humidity levels. Protect from frost in colder climates. Repot in spring if the plant becomes root-bound. Prune lightly to maintain shape and encourage bushier growth. Monitor for pests and diseases, addressing promptly with appropriate treatments.
How do I propagate Immortelle?
Immortelle can be propagated through stem cuttings, division, and keiki (though keiki is less common). For stem cuttings, take a 4-6 inch cutting from a healthy stem, removing the lower leaves. Dip the cut end in rooting hormone and plant in well-draining soil. Keep the soil moist and provide bright, indirect light. For division, carefully separate the root ball into smaller sections, ensuring each section has healthy roots and foliage. Replant each section in its own pot. Rooting typically takes several weeks.
Pinwheel Jasmine
What are the light requirements for Pinwheel Jasmine?
Pinwheel Jasmine requires bright, indirect light to thrive and produce abundant blooms. Insufficient light can lead to leggy growth and reduced flowering. An east-facing window is ideal, providing gentle morning sun. A south- or west-facing window can also work, but be sure to filter the light with sheer curtains to prevent leaf burn.
How do I care for Pinwheel Jasmine?
Pinwheel Jasmine thrives in bright, indirect light; direct sunlight can scorch its leaves. Water thoroughly when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Maintain humidity levels around 50-60%, especially during dry seasons, by misting regularly or using a humidifier. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced liquid fertilizer, diluted to half strength, to promote flowering.
How do I propagate Pinwheel Jasmine?
Pinwheel Jasmine can be propagated using stem cuttings. Take a 4-6 inch cutting from a healthy stem, removing the lower leaves. Dip the cut end in rooting hormone and plant it in a well-draining potting mix. Keep the soil moist and provide bright, indirect light.
Last updated: April 30, 2026 — Plant care data reviewed and verified by our editorial team.