Oxalis Triangularis vs Tarragon Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Oxalis Triangularis
Oxalis triangularis
Oxalis triangularis is a rhizomatous perennial plant known for its striking, triangular, purple leaves that resemble shamrocks. The leaves fold up at night and reopen during the day in response to light, a phenomenon called nyctinasty. It produces small, trumpet-shaped white or pale pink flowers. It's primarily grown as an ornamental plant, both indoors and outdoors in warmer climates, for its unique foliage and interesting movement. While it can be grown indoors, it thrives with ample bright light.
Tarragon
Artemisia dracunculus
Tarragon is a perennial herb known for its distinctive anise-like flavor. It typically grows to a height of 60-120 cm (2-4 feet). French tarragon is prized for culinary use, while Russian tarragon is more vigorous but has a coarser flavor. It is primarily an outdoor plant, grown for its leaves which are used to flavor various dishes. While it can be grown indoors, it requires specific conditions and may not thrive as well as outdoors. People grow tarragon for its culinary uses and aromatic qualities.
Quick Plant Comparison
| Feature | Oxalis Triangularis | Tarragon |
|---|---|---|
| Light | Bright indirect light to partial sun. Requires at least 4-6 hours of bright indirect light daily to maintain vibrant color and prevent legginess. | Full sun to partial shade outdoors. Indoors, requires at least 6-8 hours of direct sunlight daily, ideally from a south-facing window. |
| Watering | Every 7-10 days, depending on environmental conditions | Every 1-2 weeks indoors, depending on light and temperature. More frequently outdoors, especially during hot weather. |
| Humidity | 40-60% | 30-50% |
| Temperature | 18-24°C | 18-24°C |
| Care Level | Easy | Expert |
| Growth Rate | Moderate | Moderate |
| Max Height | 30-45 cm | 30-60 cm (1-2 feet) indoors, up to 120 cm (4 feet) outdoors |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining potting mix, such as a mix of peat moss, perlite, and vermiculite. | Well-draining soil, such as a mix of potting soil, perlite, and sand. |
| Beginner Friendly | ✅ Yes | ❌ No |
| Weekly Maintenance | 5-10 minutes weekly | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Oxalis Triangularis
| Scientific Name | Oxalis triangularis |
|---|---|
| Family | Oxalidaceae |
| Native To | Brazil |
| Also Known As | Purple Shamrock, False Shamrock, Love Plant |
| Leaves | The leaves are triangular in shape, resembling shamrocks. They are typically a deep purple color, although some varieties have green or variegated leaves. The leaves are smooth and delicate, with three leaflets arranged in a triangular pattern. They range from 2-5 cm in size. |
| Flowers | Oxalis triangularis can flower indoors, especially when provided with adequate light. The flowers are small, trumpet-shaped, and typically white or pale pink. They appear on slender stems above the foliage and add a delicate touch to the plant. |
Tarragon
| Scientific Name | Artemisia dracunculus |
|---|---|
| Family | Asteraceae |
| Native To | Southern Russia to Western Asia |
| Also Known As | Tarragon, French Tarragon, Russian Tarragon |
| Leaves | The leaves are long, narrow, and lance-shaped, typically 2-8 cm long and 2-10 mm wide. They are smooth, dark green, and have a slightly glossy appearance. The leaves are highly aromatic, with a distinct anise-like scent and flavor. |
| Flowers | Tarragon produces small, greenish-white or yellowish flowers in late summer. However, French tarragon rarely flowers indoors, and even when it does, the flowers are often sterile. |
📏 Size & Growth — Plant Comparison
Oxalis Triangularis
Tarragon
🌱 Propagation — Comparing Plant Growth
Oxalis Triangularis
Methods: Division, Rhizome cuttings, Seed
Difficulty: Easy
Tips: Divide rhizomes during repotting. Plant rhizome cuttings in well-draining soil and keep moist until new growth appears. Seeds can be sown in spring.
Tarragon
Methods: Stem cuttings, Root division
Difficulty: Moderate
Tips: Take stem cuttings in spring or early summer. Dip the cut end in rooting hormone and plant in moist potting mix. Keep the cuttings in a humid environment until roots develop. For root division, divide the plant in early spring or fall.
✨ Benefits & Features — Comparing Plant Value
Oxalis Triangularis
The most unique characteristic is the nyctinastic movement of its leaves, folding up at night and opening during the day. The striking purple, triangular foliage also sets it apart from many other houseplants. It's a relatively fast-growing plant that can quickly fill a pot.
- ✓ Adds a pop of color to any room.
- ✓ Provides a unique and interesting visual display with its moving leaves.
- ✓ Relatively easy to care for, making it suitable for beginners.
- ✓ Can be easily propagated and shared.
- ✓ Offers a touch of whimsy and natural beauty to indoor spaces.
- ⚠️ Toxic to pets
Tarragon
French tarragon, unlike Russian tarragon, is typically propagated by cuttings or division because it rarely produces viable seeds. Its distinct anise-like flavor is highly valued in culinary applications.
- ✓ Fresh herbs for cooking
- ✓ Adds a unique flavor to dishes
- ✓ Aromatic fragrance
- ✓ Can be used in teas and infusions
- ✓ Attractive foliage in a garden setting
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Oxalis Triangularis
Tarragon
🌞 Light Requirements
Oxalis Triangularis
Bright indirect light to partial sun. Requires at least 4-6 hours of bright indirect light daily to maintain vibrant color and prevent legginess.
Low light tolerant: ❌ No
Tarragon
Full sun to partial shade outdoors. Indoors, requires at least 6-8 hours of direct sunlight daily, ideally from a south-facing window.
Low light tolerant: ❌ No
💧 Watering Needs
Oxalis Triangularis
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 stem rot. Underwatering can cause the leaves to droop and become crispy.
Tarragon
Water thoroughly when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. Ensure good drainage. Signs of overwatering include yellowing leaves and a musty smell. Signs of underwatering include wilting and dry, crispy leaves.
🌡️ Temperature & Humidity
Oxalis Triangularis
Temperature: 18-24°C
Humidity: 40-60%
Tarragon
Temperature: 18-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
Oxalis Triangularis
Oxalis triangularisPlant enthusiasts who appreciate unique foliage and enjoy watching plants respond to light.
✅ Choose This Plant If...
- You love plants with unique foliage and interesting behaviors.
- You want a relatively low-maintenance plant that adds a pop of color.
- You enjoy watching plants respond to their environment.
- You have a bright spot in your home that needs a statement plant.
- You want a plant that is easy to propagate and share with friends.
❌ Skip This Plant If...
- You have pets that are prone to eating plants, as it is toxic to them.
- You struggle to provide adequate bright light for plants.
- You tend to overwater your plants.
Tarragon
Artemisia dracunculusExperienced gardeners who want to grow tarragon for culinary use and can provide the necessary conditions.
✅ Choose This Plant If...
- You want fresh tarragon for cooking and are willing to provide ample sunlight.
- You have experience growing herbs and can manage the plant's specific needs.
- You have a sunny location, either indoors or outdoors, where the plant can thrive.
- You enjoy the anise-like flavor of tarragon and use it frequently in your cooking.
- You are looking for a perennial herb that will return year after year.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You lack a sunny location to provide adequate light.
- You tend to overwater plants.
- You are a beginner gardener and prefer low-maintenance plants.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Oxalis Triangularis is rated Easy care level, while Tarragon is Expert.
💡 Pro Tips For Comparing These Plants
Oxalis Triangularis Care Tips
Oxalis triangularis is relatively easy to care for indoors with proper light and watering. It requires bright indirect light to maintain its vibrant color and prevent legginess. Avoid overwatering and allow the soil to dry slightly between waterings. It can go dormant in the winter, requiring less water.
- Provide bright, indirect light to maintain vibrant foliage color.
- Allow the soil to dry slightly between waterings to prevent root rot.
- Fertilize regularly during the growing season to promote healthy growth.
- Rotate the plant regularly to ensure even growth on all sides.
- Consider providing a period of dormancy in the winter by reducing watering and keeping the plant in a cooler location.
Tarragon Care Tips
Tarragon is primarily an outdoor plant and requires specific conditions to thrive indoors. It needs ample sunlight, well-draining soil, and careful watering. Indoor cultivation can be challenging due to the need for intense light and the plant's susceptibility to root rot if overwatered.
- Provide at least 6 hours of direct sunlight daily.
- Use well-draining soil to prevent root rot.
- Water thoroughly when the top inch of soil is dry, but avoid overwatering.
- Fertilize regularly during the growing season.
- Prune regularly to encourage bushier growth and prevent flowering.
⚠️ Common Problems & Solutions — Plant Care Comparison
Oxalis Triangularis
Tarragon
❓ Frequently Asked Questions — Comparing These Plants
Oxalis Triangularis
What are the light requirements for Oxalis Triangularis?
Oxalis Triangularis thrives in bright, indirect light. Too much direct sunlight can scorch its delicate leaves, causing them to turn brown or yellow. Insufficient light, on the other hand, can lead to leggy growth and a loss of color intensity. An east-facing window is often ideal, providing gentle morning light. A west-facing window can work if the plant is shielded from the intense afternoon sun.
How do I care for Oxalis Triangularis?
Oxalis Triangularis thrives in bright, indirect light. Avoid direct sunlight, which can scorch the leaves. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain away. Ensure the pot has drainage holes 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.
How do I propagate Oxalis Triangularis?
Oxalis Triangularis is easily propagated through division. During dormancy, carefully remove the bulbs from the soil. Gently separate the bulbs, ensuring each section has roots. Plant the bulbs in fresh, well-draining potting mix. Water thoroughly and place in bright, indirect light.
Tarragon
What are the light requirements for Tarragon?
Tarragon demands ample sunlight to thrive and produce its flavorful leaves. Aim for at least six hours of direct sunlight per day. A south-facing window is ideal for indoor cultivation, providing the most intense light. If natural light is insufficient, supplement with a grow light.
How do I care for Tarragon?
Tarragon thrives in well-draining soil and requires at least six hours of sunlight daily. Water regularly, allowing the soil to dry slightly between waterings. Avoid overwatering, which can lead to root rot. Fertilize monthly during the growing season with a balanced fertilizer to promote healthy growth and flowering.
How do I propagate Tarragon?
Tarragon can be propagated by division, stem cuttings, or root cuttings. Division is best done in spring or fall. Carefully dig up the plant and divide the root ball into smaller sections, ensuring each section has healthy roots and foliage. Replant the divisions in well-draining soil.
Last updated: April 26, 2026 — Plant care data reviewed and verified by our editorial team.