Larkspur Delphinium vs Mexican Orange Blossom Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Larkspur Delphinium
Delphinium spp.
Larkspurs are annual or perennial herbaceous plants known for their tall, elegant flower spikes. They typically grow to heights of 1 to 6 feet, depending on the species and cultivar. The flowers come in a wide range of colors, including blue, purple, pink, white, and yellow. Larkspurs are primarily outdoor plants, prized for their striking vertical presence in gardens and borders. They are grown for their beautiful, showy flowers that attract pollinators.
Mexican Orange Blossom
Choisya ternata
Choisya ternata, commonly known as Mexican Orange Blossom, is an evergreen shrub prized for its fragrant, white flowers and glossy, aromatic foliage. It typically grows to a height and spread of 1-2 meters. The plant is native to Mexico and is primarily grown outdoors as an ornamental shrub in gardens and landscapes. While it can be grown in containers, it thrives best in well-drained soil and full to partial sunlight. People grow it for its attractive appearance, fragrant flowers, and relatively low maintenance requirements.
Quick Plant Comparison
| Feature | Larkspur Delphinium | Mexican Orange Blossom |
|---|---|---|
| Light | Full sun | Full sun to partial shade |
| Watering | Every 3-7 days, depending on weather and soil drainage | Every 1-2 weeks, depending on weather and soil drainage |
| Humidity | 30-50% | 30-50% |
| Temperature | 15-24°C | 10-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | Rarely grown indoors, outdoor height 0.3-1.8 meters | 1-2 meters (outdoor); significantly smaller in containers indoors, typically 0.5-1 meter |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining, fertile soil with a slightly acidic to neutral pH (6.0-7.0) | Well-draining soil, such as a mix of loam, sand, and compost |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 30 minutes weekly (weeding, watering, deadheading) | 30 minutes weekly (including watering, pruning, and pest control) |
🔬 Botanical Information — Comparing These Plants
Larkspur Delphinium
| Scientific Name | Delphinium spp. |
|---|---|
| Family | Ranunculaceae |
| Native To | Primarily Northern Hemisphere, including Europe, Asia, and North America |
| Also Known As | Larkspur, Delphinium |
| Leaves | The leaves are deeply lobed and finely divided, giving them a delicate, fern-like appearance. They are typically green or bluish-green in color and arranged alternately along the stem. |
| Flowers | Rarely flowers indoors. Outdoors, they produce tall spikes of spurred flowers in shades of blue, purple, pink, white, and yellow. The flowers bloom in summer. |
Mexican Orange Blossom
| Scientific Name | Choisya ternata |
|---|---|
| Family | Rutaceae |
| Native To | Mexico |
| Also Known As | Mexican Orange Blossom, Mexican Mock Orange |
| Leaves | The leaves are glossy, dark green, and trifoliate (composed of three leaflets). Each leaflet is lance-shaped and about 5-8 cm long. They have a distinct citrusy aroma when crushed. |
| Flowers | It produces clusters of fragrant, white, star-shaped flowers in spring and sometimes again in late summer. Flowering is less likely and less profuse indoors. |
📏 Size & Growth — Plant Comparison
Larkspur Delphinium
Mexican Orange Blossom
🌱 Propagation — Comparing Plant Growth
Larkspur Delphinium
Methods: Seed, Division
Difficulty: Moderate
Tips: For seeds, cold stratification is often required. Divide established plants in early spring or fall.
Mexican Orange Blossom
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in late summer. Dip the cut end in rooting hormone and plant in well-draining soil. Keep the soil moist and provide indirect light.
✨ Benefits & Features — Comparing Plant Value
Larkspur Delphinium
Larkspurs are known for their tall, elegant flower spikes and vibrant colors. They are a classic cottage garden flower and a favorite of pollinators. Their toxicity makes them unsuitable for homes with pets or small children.
- ✓ Attracts pollinators to your garden.
- ✓ Adds vertical interest and vibrant colors to outdoor spaces.
- ✓ Provides cut flowers for bouquets.
- ✓ Can be used to create a classic cottage garden aesthetic.
- ✓ Offers a sense of accomplishment for experienced gardeners.
- ⚠️ Toxic to pets
Mexican Orange Blossom
The combination of fragrant flowers and aromatic foliage is unique. The leaves have a citrusy scent when crushed, adding to its appeal.
- ✓ Fragrant flowers enhance the garden's ambiance
- ✓ Evergreen foliage provides year-round visual appeal
- ✓ Attracts pollinators, supporting local ecosystems
- ✓ Relatively drought-tolerant once established, conserving water
- ✓ Provides a natural screen or hedge for privacy.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Larkspur Delphinium
Mexican Orange Blossom
🌞 Light Requirements
Larkspur Delphinium
Full sun
Low light tolerant: ❌ No
Mexican Orange Blossom
Full sun to partial shade
Low light tolerant: ❌ No
💧 Watering Needs
Larkspur Delphinium
Water deeply when the top inch of soil feels dry. Avoid overhead watering to prevent fungal diseases. Overwatering can lead to root rot, indicated by yellowing leaves and wilting. Underwatering results in dry, crispy leaves and stunted growth.
Mexican Orange Blossom
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Signs of overwatering include yellowing leaves and a soggy soil. Underwatering is indicated by wilting and dry, crispy leaves.
🌡️ Temperature & Humidity
Larkspur Delphinium
Temperature: 15-24°C
Humidity: 30-50%
Mexican Orange Blossom
Temperature: 10-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Larkspur Delphinium
Delphinium spp.Experienced gardeners looking to add vertical interest and vibrant colors to their outdoor flower beds.
✅ Choose This Plant If...
- You want tall, vibrant flowers in your garden.
- You want to attract pollinators to your yard.
- You have a sunny garden spot that needs a vertical accent.
- You enjoy the challenge of growing somewhat finicky plants.
- You appreciate classic cottage garden flowers.
❌ Skip This Plant If...
- You have pets or small children who might ingest the plant.
- You lack a sunny outdoor garden space.
- You are a beginner gardener looking for easy-to-grow plants.
Mexican Orange Blossom
Choisya ternataGardeners looking for a fragrant, flowering shrub for their outdoor landscape.
✅ Choose This Plant If...
- You want a fragrant flowering shrub for your garden
- You live in a mild climate where it can thrive outdoors year-round
- You are experienced with shrub care and pruning
- You want to attract pollinators to your garden
- You appreciate evergreen foliage that provides year-round interest.
❌ Skip This Plant If...
- You have pets that might ingest the plant
- You live in a cold climate with harsh winters
- You want a low-maintenance indoor plant
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Larkspur Delphinium needs full sun, while Mexican Orange Blossom prefers full sun to partial shade.
💡 Pro Tips For Comparing These Plants
Larkspur Delphinium Care Tips
Larkspurs are challenging to grow indoors due to their high light requirements and need for cool temperatures. They are best suited for outdoor gardens. Indoor attempts often result in weak, leggy growth and failure to flower. Proper drainage is crucial.
- Provide support for tall varieties to prevent them from falling over.
- Ensure well-draining soil to prevent root rot.
- Deadhead spent flowers regularly to encourage more blooms.
- Protect from strong winds that can damage the flower spikes.
- Monitor for pests and diseases and treat promptly.
Mexican Orange Blossom Care Tips
Mexican Orange Blossom is primarily an outdoor shrub and is challenging to grow indoors. It requires very bright light and well-draining soil. Maintaining proper humidity and preventing pests can be difficult indoors. Regular pruning is needed to maintain shape. It is best suited for outdoor gardens.
- Provide well-draining soil to prevent root rot.
- Water deeply but infrequently, allowing the soil to dry out slightly between waterings.
- Fertilize in spring with a balanced slow-release fertilizer.
- Prune after flowering to maintain shape and encourage bushier growth.
- Protect from frost in colder climates.
⚠️ Common Problems & Solutions — Plant Care Comparison
Larkspur Delphinium
Mexican Orange Blossom
❓ Frequently Asked Questions — Comparing These Plants
Larkspur Delphinium
What are the light requirements for Larkspur Delphinium?
Larkspur Delphiniums thrive in full sun, needing a minimum of six hours of direct sunlight each day to produce abundant blooms. Insufficient light can lead to leggy growth, weak stems, and reduced flowering. When planting, choose a location that receives morning sun, which helps to dry the foliage and prevent fungal diseases.
How do I care for Larkspur Delphinium?
Larkspur Delphiniums need well-draining soil enriched with organic matter. Plant in a location with full sun, providing at least six hours of direct sunlight daily. Water deeply when the top inch of soil feels dry, but avoid overwatering. Fertilize regularly during the growing season with a balanced fertilizer, switching to a fertilizer higher in phosphorus to promote blooming.
How do I propagate Larkspur Delphinium?
Larkspur Delphiniums can be propagated by division, stem cuttings, or seed. Division is best done in spring or fall by carefully separating the root ball and replanting the divisions. For stem cuttings, take 4-6 inch cuttings from new growth in spring, remove the lower leaves, and plant in a well-draining rooting medium. Keep the cuttings moist and in a humid environment until rooted.
Mexican Orange Blossom
What are the light requirements for Mexican Orange Blossom?
Mexican Orange Blossom thrives in bright, indirect light. While it can tolerate some direct morning sun, it’s best to shield it from harsh afternoon sun, which can scorch its leaves. An east-facing window is often ideal, providing gentle morning light.
How do I care for Mexican Orange Blossom?
Mexican Orange Blossom thrives with consistent care. Provide well-draining soil and water thoroughly when the top inch of soil feels dry. Fertilize in spring with a balanced fertilizer to promote healthy growth and abundant blooms. Prune after flowering to maintain shape and encourage bushier growth.
How do I propagate Mexican Orange Blossom?
Mexican Orange Blossom can be propagated through stem cuttings. Take 4-6 inch cuttings from new growth, removing the lower leaves. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the soil moist and provide bright, indirect light.
Last updated: May 1, 2026 — Plant care data reviewed and verified by our editorial team.