Artemisia vs Four O'Clock Plant Comparison

Compare these two plants side by side — care needs, key differences, and which is right for your home.

Artemisia

Artemisia

Artemisia spp.

VS
Four O'Clock

Four O'Clock

Mirabilis jalapa

Artemisia

Artemisia

Artemisia spp.

Artemisia is a diverse genus of aromatic plants, ranging from herbaceous perennials and shrubs to small trees. They are characterized by their silvery-green foliage, often deeply divided or lobed, and strong, distinctive scent. While some species like Tarragon are culinary herbs, others such as Sagebrush dominate arid landscapes. Artemisia species are primarily outdoor plants, valued for their drought tolerance, ornamental foliage, and medicinal properties. Indoor cultivation is challenging due to high light requirements and potential for aggressive growth.

Asteraceae Widespread across temperate regions of the Northern Hemisphere, particularly Eurasia and North America
✨ Features: Aromatic foliage, drought tolerance, medicinal properties (in some species)
📖 Read Complete Artemisia Guide
Four O'Clock

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.

Nyctaginaceae Tropical South America
✨ Features: Flowers open in the late afternoon or early evening and emit a sweet fragrance; flowers come in a variety of colors and can even be multicolored on the same plant.
📖 Read Complete Four O'Clock Guide

Quick Plant Comparison

Feature Artemisia Four O'Clock
Light Full sun to partial shade. Most Artemisia species require at least 6 hours of direct sunlight daily. Full sun to partial shade
Watering Every 1-2 weeks, depending on environmental conditions and soil drainage. 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 To Fast, Depending On The Species. Some Species Can Be Aggressive Spreaders Via Rhizomes. Fast
Max Height Outdoor: 0.3-2 meters, Indoor (unlikely to thrive): 0.3-0.6 meters 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. Avoid heavy clay soils. Well-draining soil, such as a mix of garden soil, sand, and compost
Beginner Friendly ❌ No ❌ No
Weekly Maintenance 15 minutes weekly (outdoor) 15 minutes weekly

🔬 Botanical Information — Comparing These Plants

Artemisia

Scientific Name Artemisia spp.
Family Asteraceae
Native To Widespread across temperate regions of the Northern Hemisphere, particularly Eurasia and North America
Also Known As Sagebrush, Wormwood, Mugwort, Southernwood, Sweet Annie, Tarragon
Leaves Leaves are typically silvery-green, often deeply divided or lobed, and covered in fine hairs. Leaf shape and size vary depending on the species.
Flowers Artemisia produces small, inconspicuous flowers that are typically yellow or white. Flowering is more common outdoors and rarely occurs indoors.

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

Artemisia

Height Outdoor: 0.3-2 meters, Indoor (unlikely to thrive): 0.3-0.6 meters
Spread Outdoor: 0.3-1.5 meters, Indoor (unlikely to thrive): 0.3-0.6 meters. Some species spread aggressively via rhizomes.
Growth Rate Moderate To Fast, Depending On The Species. Some Species Can Be Aggressive Spreaders Via Rhizomes.
Growth Pattern Varies depending on the species. Some are upright shrubs, while others are spreading groundcovers. Some species spread aggressively via rhizomes.

Four O'Clock

Height 0.3-1 meter (indoors unlikely to reach this height)
Spread 0.3-0.6 meters (can spread via tuberous roots)
Growth Rate Fast
Growth Pattern Bushy and upright, typically reaching 1-3 feet in height and spread. It grows from tuberous roots, which allow it to regrow each year in warmer climates.

🌱 Propagation — Comparing Plant Growth

Artemisia

Methods: Stem cuttings, Division, Seed

Difficulty: Easy

Tips: Take stem cuttings in spring or summer. Divide established plants in spring or fall. Sow seeds in spring after the last frost.

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

Artemisia

Many Artemisia species possess a strong, distinctive aroma due to the presence of volatile oils. The silvery-gray foliage provides a unique textural element in the garden.

  • ✓ Drought tolerance reduces water consumption.
  • ✓ Aromatic foliage provides sensory interest.
  • ✓ Attracts pollinators to the garden.
  • ✓ Deer resistance protects other plants.
  • ✓ Medicinal properties (some species, with caution).
  • ⚠️ 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

Artemisia

Repotting Repotting is rarely needed for outdoor plants. If grown in containers, repot every 1-2 years, or more frequently if the plant is root-bound or spreading aggressively.
Pruning Prune regularly to maintain shape and remove dead or diseased growth. Heavy pruning can be done in early spring.
Fertilizing Light feeding with a balanced fertilizer (10-10-10) in spring. Avoid over-fertilizing.
Seasonal Care Spring: Prune back dead growth and fertilize lightly. Summer: Monitor for pests and water regularly. Fall: Divide established plants. Winter: Provide protection from extreme cold in colder climates.

Four O'Clock

Repotting Not typically grown indoors. If grown in containers, repot annually in the spring, especially if root-bound.
Pruning Deadhead spent flowers to encourage more blooms. Prune back stems in late fall to prepare for winter dormancy.
Fertilizing Balanced liquid fertilizer (10-10-10) diluted to half strength, every 4-6 weeks during the growing season
Seasonal Care In colder climates, treat as an annual or dig up tubers in the fall and store them in a cool, dry place for replanting in the spring. Reduce watering in the winter.

🌞 Light Requirements

Artemisia

Full sun to partial shade. Most Artemisia species require at least 6 hours of direct sunlight daily.

Low light tolerant: ❌ No

Four O'Clock

Full sun to partial shade

Low light tolerant: ❌ No

💧 Watering Needs

Artemisia

Water deeply when the top inch of soil is dry. Avoid overwatering, as Artemisia is susceptible to root rot. Allow soil to dry out slightly between waterings. Signs of overwatering include yellowing leaves and a musty smell. Underwatering is indicated by wilting and crispy leaf edges.

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

Artemisia

Temperature: 15-25°C

Humidity: 30-50%

Four O'Clock

Temperature: 18-27°C

Humidity: 40-60%

🤔 Which Plant Is Right For You?

Artemisia

Artemisia

Artemisia spp.
Care: Expert Time: 15 minutes weekly (outdoor) Beginner: No

Experienced gardeners looking for drought-tolerant, aromatic plants for outdoor landscapes.

✅ Choose This Plant If...

  • You want a drought-tolerant plant for a sunny location.
  • You appreciate aromatic foliage.
  • You are interested in the medicinal properties of certain Artemisia species (with proper research and caution).
  • You want to attract pollinators to your garden.
  • You need a plant that deer tend to avoid.

❌ Skip This Plant If...

  • You have limited sunlight indoors.
  • You have pets that may ingest the plant.
  • You live in a humid environment prone to root rot.
  • You prefer low-maintenance indoor plants.
📍 Ideal Location: Outdoor garden, rock garden, herb garden, or sunny balcony.
🎨 Style: Mediterranean, Cottage, Naturalistic
🏠 Apartment Friendly: No
⚠️ Some Artemisia species contain compounds that can be toxic to dogs, cats, and horses. Symptoms may include vomiting, diarrhea, weakness, and neurological signs. The entire plant is potentially toxic.
Four O'Clock

Four O'Clock

Mirabilis jalapa
Care: Expert Time: 15 minutes weekly Beginner: No

Gardeners 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.
📍 Ideal Location: Outdoor garden, sunny border, or patio container
🎨 Style: Cottage, Bohemian, Traditional
🏠 Apartment Friendly: No
⚠️ All parts of the plant, especially the seeds and roots, are toxic to dogs, cats, and horses. Symptoms include vomiting, diarrhea, and abdominal pain. According to the ASPCA, it contains asparagine.

🎯 Quick Verdict

Best for Beginners Neither ideal
Pet Friendly Neither - caution
Less Maintenance Similar effort
Apartment Friendly Check space

⚡ 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

Artemisia Care Tips

Artemisia are primarily outdoor plants that require full sun and well-draining soil. Indoor cultivation is challenging due to high light requirements and potential for aggressive growth. Maintaining proper drainage is crucial to prevent root rot. Due to toxicity to pets, indoor placement must be carefully considered.

  • Provide well-draining soil to prevent root rot.
  • Ensure at least 6 hours of direct sunlight daily.
  • Prune regularly to maintain shape and remove dead growth.
  • Avoid over-fertilizing, as this can lead to leggy growth.
  • Monitor for pests and diseases, and treat promptly.
❄️ Winter: In colder climates, provide protection from extreme cold by mulching around the base of the plant. Reduce watering during dormancy.
☀️ Summer: Water regularly during hot, dry weather. Monitor for pests and diseases. Prune lightly to maintain shape.

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.
❄️ Winter: In colder climates, dig up the tubers and store them in a cool, dry place over the winter. Alternatively, treat as an annual and replant in the spring.
☀️ Summer: Provide consistent moisture during the hot summer months. Deadhead spent flowers to encourage more blooms. Monitor for pests and diseases.

⚠️ Common Problems & Solutions — Plant Care Comparison

Artemisia

Common Issues: Root rot, Powdery mildew, Aphids, Spider mites
Solutions: Root rot: Improve drainage and reduce watering frequency. Powdery mildew: Improve air circulation and apply a fungicide. Aphids: Spray with insecticidal soap. Spider mites: Increase humidity and spray with miticide.

Four O'Clock

Common Issues: Powdery mildew, Aphids, Root rot
Solutions: Powdery mildew: Improve air circulation and apply a fungicide. Aphids: Spray with insecticidal soap. Root rot: Ensure well-draining soil and avoid overwatering.

❓ Frequently Asked Questions — Comparing These Plants

Artemisia

What are the light requirements for Artemisia?

Artemisia needs ample sunlight to flourish and produce abundant blooms. Aim for a minimum of 6 hours of direct sunlight per day. A south-facing window is ideal for indoor plants. If natural light is insufficient, supplement with grow lights. Insufficient light can lead to leggy growth, pale foliage, and reduced blooming. Rotate the plant regularly to ensure even light exposure on all sides. During the peak of summer, provide some afternoon shade to prevent leaf scorch, especially for plants in hotter climates. Observe your plant closely for signs of light stress and adjust its location accordingly.

How do I care for Artemisia?

Artemisia thrives with proper care. Provide at least 6 hours of direct sunlight daily. Well-draining soil is crucial; amend heavy soils with perlite or sand. Water thoroughly when the top inch of soil is dry, allowing excess water to drain. Fertilize sparingly during the growing season (spring and summer) with a balanced, diluted fertilizer to encourage blooms. Avoid over-fertilizing, as it can lead to leggy growth. Prune regularly to maintain shape and promote bushier growth. Deadhead spent flowers to encourage further blooming. Provide good air circulation to prevent fungal diseases. Monitor for pests and address promptly. In winter, reduce watering and withhold fertilizer. Ensure adequate light exposure during dormancy.

How do I propagate Artemisia?

Artemisia can be propagated through several methods.

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 6, 2026 — Plant care data reviewed and verified by our editorial team.