Arctotis vs Four O'Clock Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Arctotis
Arctotis stoechadifolia
Arctotis stoechadifolia is a perennial flowering plant native to South Africa. It is characterized by its silvery-green foliage and daisy-like flowers that come in shades of white, yellow, orange, and pink. The plant typically grows to a height of 30-60 cm. While it is primarily grown outdoors as a ground cover or in borders, it can be challenging to maintain indoors due to its high light requirements. People grow it for its vibrant flowers and drought tolerance in suitable climates.
Four O'Clock
Mirabilis jalapa
Mirabilis jalapa, commonly known as the Four O'Clock flower, is a bushy, herbaceous perennial typically grown as an annual in cooler climates. It's known for its trumpet-shaped flowers that open in the late afternoon or early evening, releasing a sweet fragrance. The flowers come in a variety of colors, including pink, red, yellow, white, and multicolored variations. It grows from tuberous roots and can reach a height of 1-3 feet. It is primarily grown outdoors in gardens and borders for its vibrant colors and evening fragrance. It is not ideally suited as an indoor plant.
Quick Plant Comparison
| Feature | Arctotis | Four O'Clock |
|---|---|---|
| Light | Full sun (at least 6-8 hours of direct sunlight daily) | Full sun to partial shade |
| Watering | Every 7-10 days outdoors, less frequently indoors if attempted | Every 3-7 days depending on weather and soil drainage |
| Humidity | 30-50% | 40-60% |
| Temperature | 15-25°C | 18-27°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate | Fast |
| Max Height | 30-60 cm (outdoors), smaller if grown in containers indoors (unlikely to thrive) | 0.3-1 meter (indoors unlikely to reach this height) |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining sandy or loamy soil | Well-draining soil, such as a mix of garden soil, sand, and compost |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes weekly (deadheading, watering) | 15 minutes weekly |
🔬 Botanical Information — Comparing These Plants
Arctotis
| Scientific Name | Arctotis stoechadifolia |
|---|---|
| Family | Asteraceae |
| Native To | South Africa |
| Also Known As | African Daisy, Glandular Cape Marigold, Silver Arctotis |
| Leaves | The leaves are lance-shaped, silvery-green, and covered in fine hairs, giving them a soft, velvety texture. The leaves are typically 5-10 cm long and 1-2 cm wide. |
| Flowers | Arctotis flowers are daisy-like, with a central disc surrounded by ray florets. The flowers come in shades of white, yellow, orange, and pink. Flowering occurs primarily in spring and summer. It is unlikely to flower indoors due to insufficient light. |
Four O'Clock
| Scientific Name | Mirabilis jalapa |
|---|---|
| Family | Nyctaginaceae |
| Native To | Tropical South America |
| Also Known As | Four O'Clock Flower, Marvel of Peru, Beauty-of-the-Night |
| Leaves | The leaves are ovate to lance-shaped, typically 2-4 inches long, and have a smooth texture. They are usually medium green in color and arranged oppositely along the stems. |
| Flowers | Flowers are trumpet-shaped, about 1-2 inches long, and come in a variety of colors including pink, red, yellow, white, and multicolored. They open in the late afternoon or early evening and emit a sweet fragrance. Flowering indoors is rare and unlikely. |
📏 Size & Growth — Plant Comparison
Arctotis
Four O'Clock
🌱 Propagation — Comparing Plant Growth
Arctotis
Methods: Seed, Stem cuttings
Difficulty: Easy
Tips: For seeds, sow in spring after the last frost. For stem cuttings, take cuttings in late spring or early summer and root in well-draining soil.
Four O'Clock
Methods: Seed, Tuber division
Difficulty: Easy
Tips: Sow seeds directly in the garden after the last frost or start them indoors 6-8 weeks before. Divide tubers in early spring.
✨ Benefits & Features — Comparing Plant Value
Arctotis
Arctotis is known for its vibrant, daisy-like flowers that come in a variety of colors. The flowers typically close at night or during cloudy weather, adding a unique dynamic to the garden. Its drought tolerance makes it a valuable plant in water-wise landscapes.
- ✓ Attracts pollinators like bees and butterflies.
- ✓ Adds vibrant color to the garden.
- ✓ Drought-tolerant once established, reducing water consumption.
- ✓ Provides ground cover to suppress weeds.
- ✓ Relatively low maintenance once established.
- ⚠️ Toxic to pets
Four O'Clock
The flowers open in the late afternoon or early evening, hence the name 'Four O'Clock'. They are known for their sweet fragrance and the ability to produce multiple colors on the same plant, sometimes even on the same flower.
- ✓ Adds vibrant color to the garden
- ✓ Provides a sweet evening fragrance
- ✓ Attracts pollinators
- ✓ Relatively low-maintenance once established
- ✓ Can self-seed and naturalize in suitable climates
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Arctotis
Four O'Clock
🌞 Light Requirements
Arctotis
Full sun (at least 6-8 hours of direct sunlight daily)
Low light tolerant: ❌ No
Four O'Clock
Full sun to partial shade
Low light tolerant: ❌ No
💧 Watering Needs
Arctotis
Water thoroughly when the top inch of soil is dry. Avoid overwatering, which can lead to root rot. Allow soil to dry slightly between waterings. Signs of overwatering include yellowing leaves and a soggy soil. Underwatering is indicated by wilting and dry, crispy leaves.
Four O'Clock
Water deeply when the top inch of soil feels dry. Avoid overwatering, which can lead to root rot. During hot summer months, more frequent watering may be necessary. Reduce watering in cooler months.
🌡️ Temperature & Humidity
Arctotis
Temperature: 15-25°C
Humidity: 30-50%
Four O'Clock
Temperature: 18-27°C
Humidity: 40-60%
🤔 Which Plant Is Right For You?
Arctotis
Arctotis stoechadifoliaExperienced gardeners in warm climates looking for a drought-tolerant, colorful ground cover.
✅ Choose This Plant If...
- You live in a warm, sunny climate with well-draining soil.
- You are looking for a drought-tolerant plant that requires minimal watering once established.
- You want a plant with vibrant, daisy-like flowers that attract pollinators.
- You need a ground cover that can tolerate full sun.
- You are an experienced gardener willing to provide the specific conditions this plant needs.
❌ Skip This Plant If...
- You have pets that may ingest the plant.
- You live in a climate with cold winters and frequent frosts.
- You cannot provide full sun conditions.
- You are a beginner gardener looking for an easy-to-care-for indoor plant.
Four O'Clock
Mirabilis jalapaGardeners looking for a fragrant, colorful addition to their evening garden.
✅ Choose This Plant If...
- You want a fragrant evening garden
- You enjoy vibrant, multicolored flowers
- You want a plant that attracts pollinators like moths and hummingbirds
- You are looking for a low-maintenance outdoor plant once established
- You want a plant that can self-seed and return year after year.
❌ Skip This Plant If...
- You have pets that may ingest the plant
- You lack a sunny outdoor space
- You want a plant that thrives indoors.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Arctotis needs full sun (at least 6-8 hours of direct sunlight daily), while Four O'Clock prefers full sun to partial shade.
Arctotis has moderate growth, while Four O'Clock grows fast.
💡 Pro Tips For Comparing These Plants
Arctotis Care Tips
Arctotis stoechadifolia is primarily an outdoor plant that requires full sun and well-draining soil. It is drought-tolerant once established. Indoor cultivation is challenging due to the high light requirements. It is toxic to pets, so caution is needed if pets are present.
- Ensure well-draining soil to prevent root rot.
- Provide at least 6-8 hours of direct sunlight daily.
- Deadhead spent flowers regularly to encourage more blooms.
- Water deeply but infrequently, allowing the soil to dry slightly between waterings.
- Fertilize lightly during the growing season with a balanced fertilizer.
Four O'Clock Care Tips
Four O'Clocks are primarily outdoor plants and require full sun to thrive. Growing them indoors is challenging due to their high light requirements and potential for pest infestations. They also spread via tuberous roots, which can quickly outgrow a container. Indoor flowering is unlikely.
- Plant in well-draining soil to prevent root rot.
- Provide full sun for best flowering.
- Deadhead spent flowers regularly to encourage more blooms.
- Protect from strong winds, which can damage the delicate stems.
- Monitor for pests like aphids and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Arctotis
Four O'Clock
❓ Frequently Asked Questions — Comparing These Plants
Arctotis
What are the light requirements for Arctotis?
Arctotis thrives in full sun, requiring at least 6 hours of direct sunlight each day to produce abundant blooms. Insufficient light can result in fewer flowers and leggy growth. When grown indoors, place Arctotis near a south-facing window that receives plenty of sunlight. If natural light is limited, supplement with artificial grow lights. Rotate the plant regularly to ensure even light exposure on all sides. In hot climates, provide some afternoon shade to prevent scorching of the foliage. Monitor the plant for signs of light stress, such as pale leaves or stretched stems, and adjust its position accordingly.
How do I care for Arctotis?
Arctotis requires full sun for optimal blooming, ideally at least 6 hours per day. Water thoroughly when the top inch of soil feels dry, allowing excess water to drain away. Avoid overwatering, which can lead to root rot. Plant in well-draining soil, such as a sandy loam mix. Fertilize monthly during the blooming season with a balanced liquid fertilizer, diluted to half strength. Deadhead spent flowers regularly to encourage continuous blooming. Arctotis is generally hardy in USDA zones 9-11, but can be grown as an annual in cooler climates. Protect from frost. Provide good air circulation to prevent fungal diseases. Repot container-grown plants every 1-2 years in spring. Monitor for pests like aphids and spider mites, and treat accordingly.
How do I propagate Arctotis?
Arctotis can be propagated by seed, stem cuttings, or division.
Four O'Clock
What are the light requirements for Four O'Clock?
Four O’Clocks thrive in full sun, needing at least 6 hours of direct sunlight daily to produce abundant blooms. A sunny location encourages strong growth and vibrant flower colors. While they can tolerate partial shade, reduced sunlight will result in fewer flowers and leggier growth.
How do I care for Four O'Clock?
Four O’Clocks are relatively easy to care for. Plant them in well-draining soil in a location that receives at least 6 hours of sunlight daily for optimal blooming. Water regularly, especially during dry periods, but avoid overwatering, which can lead to root rot. Fertilize monthly during the growing season with a balanced fertilizer or one formulated for blooming plants to encourage abundant flowering.
How do I propagate Four O'Clock?
Four O’Clocks can be propagated through seeds, tubers, or stem cuttings.
Last updated: May 1, 2026 — Plant care data reviewed and verified by our editorial team.