Jacob's Coat vs Larkspur Delphinium Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Jacob's Coat
Alternanthera ficoidea
Alternanthera ficoidea, commonly known as Jacob's Coat, is a vibrant, tender perennial often grown as an annual. It's prized for its colorful foliage, which can display shades of red, pink, yellow, orange, and green. The plant typically grows to a height of 6-12 inches and spreads similarly. While it can be grown indoors, it thrives best outdoors in warm climates where it receives plenty of sunlight. People grow it for its ornamental value, using it in borders, containers, and as a ground cover to add a splash of color to gardens and landscapes.
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.
Quick Plant Comparison
| Feature | Jacob's Coat | Larkspur Delphinium |
|---|---|---|
| Light | Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal color development. | Full sun |
| Watering | Every 2-3 days outdoors in warm weather; every 5-7 days indoors, adjusting based on soil moisture. | Every 3-7 days, depending on weather and soil drainage |
| Humidity | 40-60% | 30-50% |
| Temperature | 18-27°C | 15-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 6-12 inches (indoors and outdoors) | Rarely grown indoors, outdoor height 0.3-1.8 meters |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining potting mix rich in organic matter. A mix of peat moss, perlite, and vermiculite is suitable. | Well-draining, fertile soil with a slightly acidic to neutral pH (6.0-7.0) |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes weekly | 30 minutes weekly (weeding, watering, deadheading) |
🔬 Botanical Information — Comparing These Plants
Jacob's Coat
| Scientific Name | Alternanthera ficoidea |
|---|---|
| Family | Amaranthaceae |
| Native To | South America (Brazil) |
| Also Known As | Jacob's Coat, Joseph's Coat, Parrot Leaf, Calico Plant |
| Leaves | The leaves of Jacob's Coat are ovate to lance-shaped, typically 1-2 inches long. They are smooth and slightly fleshy, with a glossy texture. The color varies greatly depending on the cultivar and the amount of sunlight exposure, ranging from deep red and purple to bright pink, yellow, orange, and green. Some varieties exhibit multiple colors on a single leaf. |
| Flowers | Jacob's Coat produces small, inconspicuous white flowers, but they are not the main attraction of the plant. Flowering is rare indoors and not particularly showy even when it occurs outdoors. |
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. |
📏 Size & Growth — Plant Comparison
Jacob's Coat
Larkspur Delphinium
🌱 Propagation — Comparing Plant Growth
Jacob's Coat
Methods: Stem cuttings, Seed
Difficulty: Easy
Tips: Take stem cuttings in spring or summer. Remove the lower leaves and place the cutting in water or directly into moist potting mix. Keep the soil consistently moist until roots develop.
Larkspur Delphinium
Methods: Seed, Division
Difficulty: Moderate
Tips: For seeds, cold stratification is often required. Divide established plants in early spring or fall.
✨ Benefits & Features — Comparing Plant Value
Jacob's Coat
The plant's most striking feature is its vibrant, multi-colored foliage, which can include shades of red, pink, yellow, orange, and green. The intensity of the colors is directly related to the amount of sunlight it receives, making it a dynamic and visually appealing plant.
- ✓ Adds vibrant color to gardens and containers
- ✓ Attracts pollinators (outdoors)
- ✓ Can be used as a ground cover
- ✓ Provides visual interest with its unique foliage
- ✓ Can be propagated easily from stem cuttings
- ⚠️ Toxic to pets
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
📅 Maintenance Schedule — Plant Care Comparison
Jacob's Coat
Larkspur Delphinium
🌞 Light Requirements
Jacob's Coat
Full sun to partial shade. Requires at least 6 hours of direct sunlight daily for optimal color development.
Low light tolerant: ❌ No
Larkspur Delphinium
Full sun
Low light tolerant: ❌ No
💧 Watering Needs
Jacob's Coat
Water regularly, keeping the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings. Overwatering can lead to root rot, indicated by yellowing and wilting leaves. Underwatering results in dry, crispy leaves and stunted growth.
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.
🌡️ Temperature & Humidity
Jacob's Coat
Temperature: 18-27°C
Humidity: 40-60%
Larkspur Delphinium
Temperature: 15-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Jacob's Coat
Alternanthera ficoideaGardeners in warm climates looking for a colorful ground cover or container plant, but who do not have pets.
✅ Choose This Plant If...
- You want a plant with incredibly vibrant and varied foliage colors.
- You live in a warm climate and can provide ample sunlight.
- You are looking for a plant to use as a colorful ground cover or in container arrangements.
- You enjoy a plant that attracts pollinators when grown outdoors.
- You are experienced with plant care and can meet its specific light and watering needs.
❌ Skip This Plant If...
- You have pets (dogs, cats, or horses) due to its toxicity.
- You cannot provide at least 6 hours of direct sunlight daily.
- You are a beginner gardener looking for a low-maintenance indoor plant.
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.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Both plants have similar basic care requirements but differ in appearance and specific needs. Compare plants carefully to find the best fit for your space.
💡 Pro Tips For Comparing These Plants
Jacob's Coat Care Tips
Jacob's Coat is relatively easy to grow outdoors in warm climates with ample sunlight. Indoors, it requires bright light and consistent moisture, which can be challenging. Maintaining vibrant foliage color indoors can be difficult without supplemental lighting. It is also toxic to pets.
- Provide at least 6 hours of direct sunlight daily to maintain vibrant colors.
- Water regularly, allowing the top inch of soil to dry out slightly between waterings.
- Fertilize every 2-4 weeks during the growing season with a balanced liquid fertilizer.
- Pinch back stems regularly to encourage bushier growth.
- Monitor for pests and treat promptly with insecticidal soap or neem oil.
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.
⚠️ Common Problems & Solutions — Plant Care Comparison
Jacob's Coat
Larkspur Delphinium
❓ Frequently Asked Questions — Comparing These Plants
Jacob's Coat
What are the light requirements for Jacob's Coat?
Jacob’s Coat requires bright, indirect light to maintain its vibrant coloration. Insufficient light can cause the leaves to fade and lose their intensity. An east-facing window is ideal, providing gentle morning sun. A west-facing window can work, but be cautious of harsh afternoon sun, which can scorch the leaves. If using a south-facing window, place the plant further back from the window or filter the light with a sheer curtain. Avoid direct sunlight, especially during the hottest part of the day. Rotate the plant regularly to ensure even light exposure on all sides. Artificial grow lights can supplement natural light, especially during winter months.
How do I care for Jacob's Coat?
Jacob’s Coat thrives in bright, indirect light. Direct sunlight can scorch its delicate leaves. Water when the top inch of soil feels dry to the touch, ensuring good drainage to prevent root rot. Maintain high humidity levels by misting regularly, using a humidifier, or placing the plant on a pebble tray filled with water. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Repot in spring if the plant becomes root-bound. Prune regularly to maintain shape and encourage bushier growth. Keep the plant away from drafts and sudden temperature changes. Ensure the soil is well-draining and slightly acidic. Monitor for pests like spider mites and aphids, and treat promptly. Provide consistent care for optimal color and growth.
How do I propagate Jacob's Coat?
Jacob’s Coat can be easily propagated through 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 moist, well-draining potting mix. Keep the cutting in a warm, humid environment until roots develop. Division is another option, separating the plant at the root ball during repotting. Air layering involves encouraging root growth on a stem while still attached to the parent plant, by wounding the stem and wrapping it in moist sphagnum moss.
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.
Last updated: May 1, 2026 — Plant care data reviewed and verified by our editorial team.