Four O'Clock vs Pittosporum Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
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.
Pittosporum
Pittosporum spp.
Pittosporum is a genus of evergreen shrubs and trees known for their glossy, leathery leaves and often fragrant flowers. They range in size from small shrubs to medium-sized trees, depending on the species. Pittosporums are primarily grown outdoors for their attractive foliage, which can be green, variegated, or even purple. Their dense growth habit makes them popular for hedging, screening, and ornamental landscaping. While some species can tolerate indoor conditions for a short period, they generally thrive outdoors with ample sunlight and air circulation. The appeal lies in their versatility and relatively low maintenance when planted in suitable climates.
Quick Plant Comparison
| Feature | Four O'Clock | Pittosporum |
|---|---|---|
| Light | Full sun to partial shade | Full sun to partial shade. Requires at least 6 hours of direct sunlight outdoors. Indoors, a south-facing window is necessary but often insufficient. |
| Watering | Every 3-7 days depending on weather and soil drainage | Outdoors: Every 1-2 weeks, depending on weather. Indoors: Every 10-14 days, but monitor soil moisture closely. |
| Humidity | 40-60% | 30-50% |
| Temperature | 18-27°C | 15-24°C |
| Care Level | Expert | Expert |
| Growth Rate | Fast | Moderate |
| Max Height | 0.3-1 meter (indoors unlikely to reach this height) | Outdoors: Up to 10 meters. Indoors: Rarely exceeds 2 meters and is unlikely to thrive long-term. |
| Pet Safety | ❌ Toxic To Pets | ❌ Toxic To Pets |
| Soil | Well-draining soil, such as a mix of garden soil, sand, and compost | Well-draining soil mix. A blend of potting mix, perlite, and sand is suitable. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15 minutes weekly | 30 minutes monthly (pruning, fertilizing, pest control). |
🔬 Botanical Information — Comparing These Plants
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. |
Pittosporum
| Scientific Name | Pittosporum spp. |
|---|---|
| Family | Pittosporaceae |
| Native To | Australia, New Zealand, East Asia, and parts of Africa |
| Also Known As | Pittosporum, Cheesewood, Japanese Pittosporum, Mock Orange |
| Leaves | The leaves are typically oval or lance-shaped, with a glossy, leathery texture. They range in color from light green to dark green, and some varieties have variegated foliage with cream or yellow margins. Leaf size varies depending on the species, but they are generally 5-10 cm long. |
| Flowers | Pittosporum produces small, fragrant flowers, typically in spring or early summer. The flowers are often white or cream-colored and may be followed by small, round fruits. Flowering is rare indoors. |
📏 Size & Growth — Plant Comparison
Four O'Clock
Pittosporum
🌱 Propagation — Comparing Plant Growth
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.
Pittosporum
Methods: Stem cuttings, Seed
Difficulty: Moderate
Tips: Take semi-hardwood cuttings in late spring or early summer. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the soil moist and provide humidity.
✨ Benefits & Features — Comparing Plant Value
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
Pittosporum
Pittosporum's unique characteristic is its glossy, evergreen foliage, which provides year-round visual interest. Some species also offer fragrant flowers, adding to their appeal. The plant's adaptability to pruning makes it ideal for shaping into hedges or topiaries.
- ✓ Provides privacy with dense foliage.
- ✓ Adds visual interest with glossy leaves and fragrant flowers.
- ✓ Requires minimal watering once established.
- ✓ Attracts pollinators to the garden.
- ✓ Offers a versatile landscaping option for hedging, screening, or specimen planting.
- ⚠️ Toxic to pets
📅 Maintenance Schedule — Plant Care Comparison
Four O'Clock
Pittosporum
🌞 Light Requirements
Four O'Clock
Full sun to partial shade
Low light tolerant: ❌ No
Pittosporum
Full sun to partial shade. Requires at least 6 hours of direct sunlight outdoors. Indoors, a south-facing window is necessary but often insufficient.
Low light tolerant: ❌ No
💧 Watering Needs
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.
Pittosporum
Water thoroughly when the top inch of soil is dry. Overwatering can lead to root rot, while underwatering causes leaf drop. Ensure good drainage.
🌡️ Temperature & Humidity
Four O'Clock
Temperature: 18-27°C
Humidity: 40-60%
Pittosporum
Temperature: 15-24°C
Humidity: 30-50%
🤔 Which Plant Is Right For You?
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.
Pittosporum
Pittosporum spp.Gardeners in mild climates looking for an attractive and versatile evergreen shrub for hedging or screening.
✅ Choose This Plant If...
- You live in a mild climate with plenty of sunshine.
- You need a plant for hedging or screening in your garden.
- You appreciate fragrant flowers.
- You want a relatively low-maintenance evergreen shrub.
- You have experience with outdoor gardening and pest control.
❌ Skip This Plant If...
- You live in a cold climate with harsh winters.
- You are looking for an easy-to-grow indoor plant.
- You have pets that might ingest the plant.
- You don't have a sunny outdoor space.
- You dislike pruning and shaping plants.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Four O'Clock has fast growth, while Pittosporum grows moderate.
💡 Pro Tips For Comparing These Plants
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.
Pittosporum Care Tips
Pittosporums are primarily outdoor plants that struggle indoors due to high light requirements and the need for good air circulation. Maintaining adequate light and preventing pests are the biggest challenges. It's best suited for outdoor landscaping.
- Plant in well-draining soil to prevent root rot.
- Provide ample sunlight for optimal growth and flowering.
- Prune regularly to maintain shape and size.
- Protect from frost in colder climates.
- Monitor for pests and diseases and treat promptly.
⚠️ Common Problems & Solutions — Plant Care Comparison
Four O'Clock
Pittosporum
❓ Frequently Asked Questions — Comparing These Plants
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.
Pittosporum
What are the light requirements for Pittosporum?
Pittosporum thrives in bright, indirect light. Insufficient light can lead to leggy growth and reduced foliage density. An east-facing window is often ideal, providing gentle morning sun. A south-facing window can also work, but be sure to filter the light with a sheer curtain to prevent leaf scorch. North-facing windows may not provide enough light, especially during the darker months. Rotate the plant regularly to ensure even light exposure on all sides. If natural light is inadequate, supplement with artificial grow lights. Place the grow lights 12-18 inches above the plant. Observe the plant for signs of light stress, such as pale leaves or stunted growth, and adjust its location accordingly.
How do I care for Pittosporum?
Pittosporum prefers bright, indirect light. Avoid direct sunlight, which can scorch the leaves. Water thoroughly when the top inch of soil feels dry to the touch, ensuring good drainage to prevent root rot. Use a well-draining potting mix. Maintain moderate humidity levels, especially during dry indoor conditions. Fertilize every 2-4 weeks during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Prune regularly to maintain shape and encourage bushier growth. Repot every 1-2 years, or when the plant becomes root-bound, into a slightly larger pot. Monitor for pests such as aphids and spider mites, and treat promptly if detected. Provide stable temperatures, avoiding sudden fluctuations or drafts. Ensure proper air circulation around the plant. Wipe the leaves occasionally to remove dust and maintain their shine.
How do I propagate Pittosporum?
Pittosporum can be propagated through stem cuttings or air layering. For stem cuttings, take a 4-6 inch cutting from a healthy stem. Remove the lower leaves and dip the cut end in rooting hormone. Plant the cutting in a well-draining potting mix and keep it moist. Cover with a plastic bag or humidity dome to maintain humidity. Roots should develop in 4-6 weeks. For air layering, make a small cut on a healthy stem and wrap it with moist sphagnum moss. Cover the moss with plastic wrap and secure it with tape. Keep the moss moist. Roots should develop in a few weeks. Once roots are visible, cut the stem below the rooted area and plant it in a pot. Ensure the pot is the correct size and the plant is secured.
Last updated: April 22, 2026 — Plant care data reviewed and verified by our editorial team.