Calla vs Orach Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Calla
Zantedeschia aethiopica
Zantedeschia aethiopica, commonly known as Calla Lily, is a rhizomatous herbaceous perennial prized for its elegant, trumpet-shaped spathes (modified leaves) that surround a central spadix. While often called a lily, it is not a true lily. It grows from rhizomes, producing large, arrow-shaped, glossy green leaves. It is primarily an outdoor plant, thriving in moist conditions. People grow it for its striking flowers, often used in bouquets and floral arrangements. It can be grown indoors, but requires specific conditions to thrive and may not flower as readily as outdoors.
Orach
Atriplex hortensis
Atriplex hortensis, commonly known as Orach, is an annual plant grown for its edible leaves. It can reach heights of 1-2 meters. The leaves are variable in color, ranging from green to red or purple. It is primarily an outdoor plant, cultivated in gardens for use as a leafy green vegetable, similar to spinach. While it can be technically grown indoors, it requires very bright light and is prone to pest infestations, making it a challenging indoor plant.
Quick Plant Comparison
| Feature | Calla | Orach |
|---|---|---|
| Light | Bright, indirect light to full sun outdoors. Indoors, provide bright indirect light, ideally near an east- or west-facing window. | Full sun to partial shade outdoors. Indoors, requires very bright, direct light for at least 6 hours daily. |
| Watering | Every 3-7 days during the growing season, less frequently in winter. | Outdoors: Every 2-3 days in hot weather, less frequently in cooler weather. Indoors: Every 5-7 days, depending on light and humidity. |
| Humidity | 40-60% | 40-60% |
| Temperature | 18-24°C | 15-25°C |
| Care Level | Moderate | Expert |
| Growth Rate | Moderate | Fast |
| Max Height | Indoors: 0.6-1 meter | Outdoors: 1-2 meters. Indoors: 0.5-1 meter (more challenging to achieve) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining potting mix rich in organic matter. A mix of peat moss, perlite, and compost is suitable. | Well-draining, fertile soil. A mix of garden soil, compost, and perlite is suitable. |
| Beginner Friendly | With Caution | ❌ No |
| Weekly Maintenance | 10 minutes weekly | 30 minutes weekly (including watering, weeding, and pest control) |
🔬 Botanical Information — Comparing These Plants
Calla
| Scientific Name | Zantedeschia aethiopica |
|---|---|
| Family | Araceae |
| Native To | South Africa |
| Also Known As | Calla Lily, Arum Lily, Trumpet Lily |
| Leaves | Large, arrow-shaped, glossy green leaves. The leaves can be up to 45 cm long and 25 cm wide. Some varieties have speckled or variegated leaves. |
| Flowers | Can flower indoors with proper care, but more reliably flowers outdoors. The 'flower' is a modified leaf called a spathe, which is typically white, but can also be pink, yellow, orange, or purple. The spadix, the yellow spike in the center, is where the true flowers are located. |
Orach
| Scientific Name | Atriplex hortensis |
|---|---|
| Family | Amaranthaceae |
| Native To | Eurasia |
| Also Known As | Orach, Garden Orache, Red Orach, French Spinach, Mountain Spinach |
| Leaves | The leaves are alternate, triangular or lance-shaped, and can be green, red, or purple. They have a slightly succulent texture and a mild, spinach-like flavor. |
| Flowers | Orach produces small, inconspicuous flowers in clusters along the stem. Flowering typically occurs in mid-summer. It rarely flowers indoors. |
📏 Size & Growth — Plant Comparison
Calla
Orach
🌱 Propagation — Comparing Plant Growth
Calla
Methods: Division, Seed
Difficulty: Moderate
Tips: Divide rhizomes in early spring before new growth begins. Ensure each division has at least one eye (bud). Plant divisions in well-draining soil and keep moist. Seed propagation is possible but slower.
Orach
Methods: Seed
Difficulty: Easy
Tips: Sow seeds directly into the soil in spring or early summer. Keep the soil moist until germination.
✨ Benefits & Features — Comparing Plant Value
Calla
The Calla Lily is not a true lily, but a rhizomatous perennial with a unique spathe and spadix flower structure. Its elegant, trumpet-shaped flowers make it a popular choice for bouquets and floral arrangements. It requires a dormant period in winter to promote flowering in the following season.
- ✓ Aesthetically pleasing flowers.
- ✓ Can be used for cut flower arrangements.
- ✓ Adds a touch of elegance to any room.
- ✓ Can improve mood and reduce stress.
- ✓ Provides a sense of accomplishment through successful care.
- ⚠️ Toxic to pets
Orach
Orach is known for its heat tolerance compared to spinach and its ability to grow in a variety of soil conditions. The colorful foliage adds ornamental value to the garden.
- ✓ Provides edible leafy greens
- ✓ Adds visual interest with colorful foliage
- ✓ Attracts beneficial insects to the garden
- ✓ Offers a heat-tolerant spinach alternative
- ✓ Can be used in various culinary dishes
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Calla
Orach
🌞 Light Requirements
Calla
Bright, indirect light to full sun outdoors. Indoors, provide bright indirect light, ideally near an east- or west-facing window.
Low light tolerant: ❌ No
Orach
Full sun to partial shade outdoors. Indoors, requires very bright, direct light for at least 6 hours daily.
Low light tolerant: ❌ No
💧 Watering Needs
Calla
Keep the soil consistently moist, especially during the growing season. Water thoroughly when the top inch of soil feels dry. Reduce watering in the dormant period. Overwatering can lead to rhizome rot, indicated by yellowing leaves and a foul odor. Underwatering results in wilting and browning leaf tips.
Orach
Water thoroughly when the top inch of soil is dry. Overwatering can lead to root rot, while underwatering causes wilting and leaf drop. Ensure good drainage.
🌡️ Temperature & Humidity
Calla
Temperature: 18-24°C
Humidity: 40-60%
Orach
Temperature: 15-25°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Calla
Zantedeschia aethiopicaExperienced plant enthusiasts seeking a flowering plant with elegant blooms, willing to provide specific care requirements.
✅ Choose This Plant If...
- You appreciate elegant, trumpet-shaped flowers.
- You can provide bright, indirect light and consistent moisture.
- You are willing to provide a dormant period in winter.
- You are experienced with plant care and can address potential problems.
- You want a plant that can be used for cut flower arrangements.
❌ Skip This Plant If...
- You have pets that may ingest the plant.
- You cannot provide bright light or consistent moisture.
- You are a beginner plant owner.
- You prefer low-maintenance plants.
Orach
Atriplex hortensisGardeners looking for a leafy green vegetable to grow outdoors.
✅ Choose This Plant If...
- You want a fast-growing leafy green for your garden.
- You enjoy experimenting with different colored foliage.
- You are looking for a spinach alternative that tolerates heat better.
- You want to attract beneficial insects to your garden.
- You have ample space in your garden for a relatively large annual plant.
❌ Skip This Plant If...
- You have pets that might ingest the plant.
- You lack a sunny outdoor space.
- You are looking for a low-maintenance indoor plant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Calla is rated Moderate care level, while Orach is Expert.
Calla has moderate growth, while Orach grows fast.
💡 Pro Tips For Comparing These Plants
Calla Care Tips
Calla Lilies require bright light and consistent moisture. They can be grown indoors, but may not flower as readily as outdoors. Ensure good drainage to prevent rhizome rot. Toxicity to pets is a significant concern. Requires a dormant period in winter.
- Provide a dormant period in winter by reducing watering and keeping the plant in a cool location.
- Ensure good drainage to prevent rhizome rot.
- Fertilize regularly during the growing season to promote flowering.
- Monitor for pests and diseases and treat promptly.
- Provide bright, indirect light for optimal growth and flowering.
Orach Care Tips
Orach is primarily an outdoor plant that requires full sun and well-drained soil. Indoor cultivation is challenging due to the high light requirements and susceptibility to pests. Consistent watering and fertilization are necessary for healthy growth. Toxicity to pets is a significant concern.
- Start seeds indoors 4-6 weeks before the last frost for an earlier harvest.
- Provide consistent moisture, especially during hot weather.
- Monitor regularly for pests and diseases.
- Harvest leaves frequently to encourage continued growth.
- Amend the soil with compost before planting to improve fertility.
⚠️ Common Problems & Solutions — Plant Care Comparison
Calla
Orach
❓ Frequently Asked Questions — Comparing These Plants
Calla
What are the light requirements for Calla?
Calla lilies thrive in bright, indirect light. Direct sunlight can scorch their leaves, so avoid placing them in south-facing windows without some form of shading. An east- or west-facing window is ideal, providing ample light without the intensity of direct sun. If you notice the leaves becoming pale or the plant failing to bloom, it may not be receiving enough light. In such cases, consider supplementing with artificial grow lights. During the darker winter months, supplemental lighting is particularly beneficial to maintain healthy growth and encourage future blooms. Ensure the light is diffused to prevent leaf burn. Regular rotation of the plant ensures all sides receive adequate light, preventing uneven growth.
How do I care for Calla?
Calla lilies require bright, indirect light for optimal growth and blooming. Water thoroughly when the top inch of soil feels dry, ensuring proper drainage to prevent root rot. During the growing season (spring and summer), fertilize every 2-4 weeks with a balanced liquid fertilizer diluted to half strength to encourage flowering. Reduce watering and fertilization during the dormant period in fall and winter. Maintain a humidity level of 50-60%. Repot annually in spring using well-draining potting mix. Remove spent flowers to encourage more blooms. Monitor for pests like aphids and spider mites, and treat promptly if detected. Provide support for taller varieties to prevent them from bending. Rotate the plant regularly to ensure even growth and prevent leaning towards the light source. Protect from frost and freezing temperatures.
How do I propagate Calla?
Calla lilies can be propagated by division, stem cuttings (though less common), and keiki (small plantlets that sometimes form on the plant).
Orach
What are the light requirements for Orach?
Orach thrives in full sun, requiring at least 6 hours of direct sunlight per day. However, it can also tolerate partial shade, especially in hotter climates. In areas with intense summer heat, providing some afternoon shade can prevent the leaves from scorching.
How do I care for Orach?
Orach is a relatively easy plant to care for, thriving in full sun to partial shade. It prefers well-draining soil and regular watering, especially during hot, dry periods. Fertilize every few weeks with a balanced fertilizer to encourage healthy growth.
How do I propagate Orach?
Orach is primarily propagated by seed.
Last updated: April 26, 2026 — Plant care data reviewed and verified by our editorial team.