Four O'Clock,Mirabilis jalapa Flower Seeds for Natural Landscape Gardens

Four O'Clock (Mirabilis jalapa), also commonly known as Marvel of Peru, is an attractive ornamental flowering plant belonging to the Nyctaginaceae family. This distinctive garden species is recognized for its colorful trumpet-shaped blossoms, broad green foliage, bushy growth habit, and unusual tendency to open its flowers during the late afternoon or early evening.

Four O'Clock flowers are well suited to managed natural landscape gardens, cottage-style borders, evening flower displays, patio planting areas, and ornamental garden beds. Their colorful flowers and branching growth habit contribute seasonal interest to informal landscape arrangements.

Mirabilis jalapa is native to Mexico and Central America and has been widely introduced to other warm regions. Although commonly called Marvel of Peru, it should not automatically be considered native to every landscape where it is cultivated.

One of the plant's most recognizable characteristics is its distinctive flowering schedule. Four O'Clock blossoms commonly begin opening in the late afternoon, often remaining open into the evening. In cloudy weather, individual flowers may open earlier in the day.

The plant produces colorful funnel-shaped or trumpet-shaped flowers in several possible shades, including pink, red, yellow, white, magenta, and purple. Some varieties may develop striped, spotted, or multicolored blossoms. Different colors can sometimes appear on a single plant, depending on its genetic characteristics.

The exact flower colors depend on the seed variety. Because the supplied product information does not identify a particular flower color, no specific shade or mixed-color combination is guaranteed.

Four O'Clock develops broad green leaves that are generally ovate to somewhat heart-shaped. These leaves feature pointed tips, smooth margins, and an opposite arrangement along the stems.

The plant forms a bushy, branching structure with numerous flowering shoots. Mature specimens commonly reach approximately 45–120 cm (18–48 inches) in height and 30–60 cm (12–24 inches) in spread, although individual plants may grow wider under favorable conditions.

Mirabilis jalapa is a tender perennial in suitable warm climates. In regions that experience freezing winter temperatures, it is frequently cultivated as a seasonal annual.

As plants mature, they develop thickened underground storage roots. These tuberous structures may support new growth during subsequent seasons where winter conditions remain sufficiently mild.

The blossoms are often fragrant, particularly during the evening. Their late-opening habit makes Four O'Clock interesting for managed nighttime flower gardens and pollinator observation areas.

Following flowering, the plant produces distinctive dark, ribbed seed-bearing fruits. These mature structures may fall into nearby soil and germinate under favorable conditions, allowing the species to self-seed.

Four O'Clock generally grows best in full sunlight, although partial shade is tolerated. It prefers reasonably fertile, well-drained soil and moderate moisture during establishment.

The North Carolina State University Extension Gardener Plant Toolbox identifies Four O'Clock as a branching ornamental plant that grows well in full sun, tolerates partial shade, and may spread through volunteer seedlings.

This product is intended for ornamental natural landscape garden planting. The original supplied product information identifies 10 seeds per packet.

• Ornamental Flower Seeds: Four O'Clock seeds suitable for managed natural landscape garden cultivation.

• Botanical Name: Mirabilis jalapa, a flowering species belonging to the Nyctaginaceae family.

• Common Names: Also known as Marvel of Peru and Four-O'Clock Flower.

• Seed Quantity: 10 seeds per packet, according to the original product information.

• Late-Afternoon Flowering: Blossoms commonly open during the late afternoon or early evening.

• Colorful Trumpet-Shaped Flowers: Produces distinctive tubular flowers with flared openings.

• Multiple Possible Flower Colors: Species varieties include pink, red, yellow, white, purple, and patterned blossoms.

• Evening Fragrance: Flowers may release a pleasant fragrance during evening hours.

• Bushy Branching Habit: Develops numerous stems and abundant green foliage.

• Opposite Green Leaves: Produces broad, pointed leaves arranged in pairs.

• Tender Perennial Growth: Established plants may regrow during successive seasons in suitable warm climates.

• Annual Garden Cultivation: Commonly grown as an annual in frost-prone regions.

• Tuberous Root Development: Mature plants develop thickened underground storage roots.

• Full Sun Preference: Performs well in bright outdoor planting locations.

• Partial Shade Tolerance: Can grow in garden areas receiving several hours of sunlight.

• Evening Pollinator Interest: Flowers may attract moths and other visiting animals.

• Naturalistic Landscape Appeal: Complements informal flower borders and defined ornamental planting beds.

• Distinctive Dark Fruits: Produces rounded, ribbed seed-bearing structures that become black at maturity.

Foliage and Appearance

Four O'Clock develops attractive green foliage consisting of broad, simple leaves.

The leaves are generally ovate to somewhat heart-shaped, with pointed tips and smooth margins.

They develop in opposite pairs along the stems.

Young plants initially produce small green leaves before establishing a fuller branching structure.

As the plant matures, additional foliage develops along numerous stems.

The leaf blades generally have smooth surfaces with visible veins.

Their broad green appearance provides an attractive background for the colorful blossoms.

Stem and Branch Characteristics

Mirabilis jalapa develops upright, branching herbaceous stems.

The stems are generally green, although reddish or purplish coloration may occur.

As growth progresses, additional branches develop from the main stems, creating a rounded appearance.

The stems support opposite leaves and clusters of developing flower buds.

Mature plants may produce numerous flowering branches during favorable growing conditions.

In suitable warm climates, established underground roots may support new stem development during successive seasons.

Flower Characteristics

Four O'Clock produces colorful funnel-shaped or trumpet-shaped blossoms.

Each flower has a narrow tubular base and a broad, flared opening.

The colorful flower structure is formed by a petal-like perianth rather than separate conventional petals.

The species includes plants with pink, red, yellow, white, purple, magenta, and patterned flowers.

Some varieties produce striped, spotted, or multicolored blossoms.

Individual flowers commonly measure approximately 2.5–5 cm across, depending on genetics and growing conditions.

Flowers develop near the ends of branching stems.

The blossoms generally open during the late afternoon or early evening.

Cloudy weather may encourage earlier flower opening.

Individual blossoms are not guaranteed to open precisely at 4:00 PM.

University of Florida IFAS Extension describes Four O'Clock as producing fragrant tubular flowers that open in the evening and often wilt by the following morning.

Seed and Fruit Characteristics

Following flowering, Four O'Clock develops distinctive dark seed-bearing fruits.

These structures are generally rounded to oval.

Mature fruits commonly appear black or very dark brown.

Their surfaces are prominently ribbed and may have a slightly rough or wrinkled appearance.

Botanically, the structures are dry fruits enclosed by persistent floral tissue, commonly called anthocarps.

Each mature fruit contains a seed.

The fruits may detach naturally and fall into nearby garden soil.

Under suitable conditions, fallen seeds may germinate and produce additional plants.

Removing mature seed-bearing fruits helps reduce unwanted self-seeding.

Root Characteristics

Four O'Clock develops thickened underground storage roots.

These tuberous roots become more developed as plants mature.

The underground structures store resources that may support seasonal regrowth.

In suitable frost-free or mild-winter climates, established plants can return during subsequent growing seasons.

In colder regions, freezing temperatures may damage the storage roots.

Gardeners may lift and protect established tuberous roots during winter where necessary.

The roots are not edible garden tubers and should not be consumed.

Growth Habit

Four O'Clock is a bushy, branching ornamental flowering plant.

Mature plants commonly reach approximately 45–120 cm (18–48 inches) in height.

Their spread typically ranges from approximately 30–60 cm (12–24 inches), although vigorous plants may become wider.

The species develops multiple leafy stems that create a rounded, moderately spreading form.

Its growth habit is suitable for defined ornamental landscape beds, cottage-style borders, and large outdoor containers.

Seasonal Development

Four O'Clock seeds germinate when suitable warmth and moisture are available.

Young seedlings develop green leaves and establish their root systems.

As growth progresses, branching stems become more prominent.

Flower buds form near the ends of mature shoots.

Colorful blossoms open during the late afternoon or evening.

Following flowering, dark ribbed fruits develop and mature.

Under favorable warm conditions, plants may continue producing flowers for an extended growing season.

In sufficiently mild climates, underground storage roots can support regrowth during subsequent seasons.

In frost-prone climates, Four O'Clock is commonly cultivated as an annual.

Pollinator and Botanical Interest

Four O'Clock flowers may attract moths and other flower-visiting animals.

Their late-opening habit makes the species useful for observing flower activity during the evening.

North Carolina State University Extension identifies moths and hummingbirds as visitors to Four O'Clock flowers.

The species also offers botanical interest through its colorful perianth, opposite foliage, tuberous roots, and distinctive ribbed fruits.

Sunlight Requirements

Four O'Clock generally grows best in full sun.

Choose an outdoor planting area receiving approximately six or more hours of direct sunlight daily.

Partial shade is tolerated, particularly in regions experiencing intense afternoon heat.

Adequate sunlight generally supports healthy branching and flowering.

Deep shade may reduce the number of flowers produced.

Soil Requirements

Mirabilis jalapa grows in a range of garden soil types.

Loamy and sandy soils with adequate drainage are suitable.

The plant generally prefers reasonably fertile soil that retains moderate moisture.

Adding well-decomposed organic matter can improve soil structure where necessary.

Avoid heavily compacted soil that restricts underground root development.

University of Wisconsin–Madison Extension recommends a sunny position with humus-rich, well-drained soil for Four O'Clock cultivation.

Watering Considerations

Maintain gentle, consistent moisture during germination.

Young plants benefit from regular watering while their roots establish.

Established plants show moderate tolerance for dry conditions.

Moderate moisture supports continued growth and flowering.

Additional watering may be necessary during extended hot or dry weather.

Avoid continuously saturated soil.

Temperature and Climate

Four O'Clock is a warm-season flowering plant.

Seeds generally germinate more readily when soil temperatures are warm.

The species can grow as a perennial in suitable mild-winter and frost-free climates.

In regions with freezing winters, it is commonly cultivated as an annual.

Established tuberous roots may survive mild winters but can be damaged by significant freezing temperatures.

Garden Placement

Choose a sunny naturalistic landscape border, cottage garden, evening planting area, patio garden, or spacious outdoor container.

Plant where late-afternoon flowers can be appreciated.

Provide enough room for branching stems and mature foliage.

Because Four O'Clock can self-seed, choose a managed location where volunteer seedlings can be removed as needed.

Avoid introducing the species into unmanaged natural habitats without reviewing local planting guidance.

1. Choose the Sowing Season: Sow during spring after the danger of frost has passed or during another suitable warm growing season.

2. Select a Sunny Location: Choose full sun or light partial shade.

3. Prepare the Landscape Bed: Loosen the upper soil layer and remove debris.

4. Improve Drainage: Ensure the planting area drains adequately after watering.

5. Consider Indoor Seed Starting: Begin seeds in containers before the outdoor growing season when appropriate.

6. Choose Suitable Containers: Select seed trays or small pots with drainage holes.

7. Prepare the Growing Medium: Use a clean, well-drained seed-starting mixture.

8. Moisten the Medium: Water lightly before sowing.

9. Inspect the Seeds: Four O'Clock seeds have relatively firm outer coverings.

10. Consider Overnight Soaking: Soak seeds in room-temperature water overnight to help soften their coverings.

11. Avoid Excessive Soaking: Do not leave seeds submerged for prolonged periods.

12. Sow at a Suitable Depth: Plant seeds approximately 1–1.5 cm (around ½ inch) deep.

13. Cover with Growing Medium: Gently cover the seeds with soil.

14. Water Carefully: Moisten the soil without exposing or displacing seeds.

15. Maintain Warm Conditions: Approximately 20–25°C (68–77°F) is a practical starting range for germination.

16. Maintain Consistent Moisture: Keep the medium gently moist without prolonged saturation.

17. Monitor Germination: Seedlings may emerge in approximately 7–14 days under favorable conditions, although actual timing varies.

18. Provide Adequate Light: Place emerging seedlings in a bright growing location.

19. Observe True Leaf Development: Allow seedlings to develop their first true leaves.

20. Thin Overcrowded Seedlings: Remove excess seedlings when necessary.

21. Support Root Development: Maintain moderate moisture while young roots establish.

22. Transplant into Individual Pots: Move established seedlings when additional space is needed.

23. Acclimate Seedlings Outdoors: Gradually introduce indoor-grown plants to outdoor sunlight, wind, and temperature conditions.

24. Prepare the Final Planting Area: Choose reasonably fertile, well-drained soil.

25. Allow Suitable Plant Spacing: Position plants approximately 30–60 cm (12–24 inches) apart.

26. Transplant Carefully: Place seedlings at approximately the same depth as they were growing in their containers.

27. Water After Planting: Provide moderate watering to support establishment.

28. Monitor Branching Growth: Observe the development of green foliage and flowering shoots.

29. Observe Flowering: Look for trumpet-shaped blossoms opening during late afternoon and evening.

30. Manage Seed Production: Remove mature fruits where unwanted self-seeding is a concern.

31. Maintain Seasonal Plants: In suitable warm climates, established tuberous roots may support future regrowth.

Seed propagation note: Four O'Clock can be propagated from seeds or established underground roots. Its firm-coated seeds may benefit from overnight soaking before sowing. North Carolina State University Extension recommends overnight soaking as an optional way to speed germination.

Naturalistic Landscape Gardens

Four O'Clock adds colorful blossoms and broad green foliage to managed landscape beds designed with an informal garden appearance.

Cottage-Style Flower Borders

Its colorful trumpet-shaped flowers complement traditional cottage-style planting arrangements.

Evening Flower Gardens

The species is particularly interesting for gardens enjoyed during the late afternoon and evening.

Patio Planting Areas

Four O'Clock can be grown near patios and garden seating spaces where its flowers and fragrance may be appreciated.

Managed Pollinator Gardens

The late-opening blossoms may attract moths and other flower-visiting animals, supporting opportunities for observation.

Mixed Ornamental Flower Beds

Its bushy foliage and colorful blooms complement defined mixed planting arrangements.

Outdoor Container Gardens

Large pots with appropriate drainage can accommodate its branching growth and developing root system.

Warm-Season Flower Displays

Four O'Clock contributes seasonal ornamental interest through its colorful blossoms and green foliage.

Botanical Education Gardens

The species provides opportunities to observe flower-opening behavior, opposite leaves, tuberous roots, and ribbed fruits.

Warm-Climate Perennial Gardens

In sufficiently mild climates, established plants may regrow during successive growing seasons.

• Choose a sunny or partially shaded planting location.

• Provide reasonably fertile, well-drained soil.

• Maintain consistent moisture during seed germination.

• Consider overnight soaking before sowing.

• Avoid excessively deep seed placement.

• Keep young seedlings in warm growing conditions.

• Provide adequate sunlight for flowering.

• Thin overcrowded seedlings when necessary.

• Allow suitable spacing between mature plants.

• Water regularly during establishment.

• Maintain moderate moisture during extended dry periods.

• Avoid continuously saturated soil.

• Monitor developing flower buds and blossoms.

• Remove damaged or declining stems when needed.

• Remove mature fruits to limit unwanted self-seeding.

• Monitor nearby soil for volunteer seedlings.

• Protect established plants from freezing conditions where practical.

• Consider protected storage for mature tuberous roots in frost-prone regions.

• Wear gloves when handling roots or other plant material.

• Keep seeds and roots away from children and pets.

• Avoid consuming planting seeds, roots, or other plant parts.

• Review local planting guidance before introducing Four O'Clock into unmanaged natural habitats.

Four O'Clock (Mirabilis jalapa) is an ornamental flowering plant recognized for its colorful trumpet-shaped blossoms, late-afternoon flowering behavior, lush green foliage, and branching growth habit. These characteristics make it suitable for managed natural landscape gardens, cottage-style borders, evening displays, and spacious outdoor containers.

Botanical identification: Mirabilis jalapa belongs to the Nyctaginaceae family. Its distinguishing features include opposite green leaves, branching stems, trumpet-shaped flowers, thickened storage roots, and dark ribbed fruits.

Common names: The species is commonly known as Four O'Clock, Marvel of Peru, and Four-O'Clock Flower. The name Four O'Clock reflects its characteristic tendency to open flowers during the late afternoon.

Native distribution: Four O'Clock is native to Mexico and Central America. Its historical name, Marvel of Peru, should not be interpreted as confirmation that the plant is native to every region where it has been cultivated.

Flower opening behavior: The blossoms generally open during late afternoon or early evening. Cloudy weather may encourage earlier opening. Individual flowers do not necessarily open at precisely 4:00 PM.

Flower color variation: The species includes varieties with pink, red, yellow, white, purple, magenta, and patterned flowers. Flower colors depend on the genetic characteristics of the seed lot. The supplied information does not establish a specific flower color or mixed-color combination.

Flower structure: Four O'Clock produces tubular flowers with flared openings. The colorful portion is a petal-like perianth rather than separate conventional petals. Many forms produce a noticeable evening fragrance.

Perennial growth characteristics: Four O'Clock is a tender perennial that develops thickened storage roots. In suitable warm climates, these structures can support new growth during successive seasons.

Annual cultivation: In regions experiencing freezing winter temperatures, Four O'Clock is commonly grown as an annual. Mature tuberous roots may be lifted before severe frost and stored in protected conditions.

Seed germination: Four O'Clock seeds have relatively firm outer coverings. Overnight soaking can help soften the covering and may encourage faster germination. Maintain warm conditions and moderate moisture during propagation.

Sunlight requirements: Four O'Clock generally performs best in full sunlight but tolerates partial shade. Flower production depends on available light, plant maturity, and environmental conditions.

Soil and moisture requirements: The species grows in a range of garden soils but generally prefers well-drained, moderately fertile conditions. Regular moisture supports early growth, while mature plants can tolerate occasional dry periods.

Mature plant size: North Carolina State University Extension identifies a typical height of approximately 18 inches to 4 feet and spread of 12–24 inches. Actual plant size varies with genetics, climate, and growing conditions.

Tuberous root development: Established plants form thick underground storage roots. University of Wisconsin–Madison Extension notes that these roots can be lifted and stored in cool, dry, frost-free conditions for replanting after winter.

Pollinator observation: The flowers may attract moths, hummingbirds in suitable regions, and other flower-visiting animals. Their evening-opening habit provides opportunities for observing late-day pollination activity.

Self-seeding and landscape management: Four O'Clock may develop volunteer seedlings where mature fruits fall into suitable soil. University of Florida IFAS Extension notes that the plant can spread aggressively in some warm regions. Remove unwanted seedlings and mature fruits as necessary.

Natural landscape considerations: Four O'Clock is suitable for informal ornamental landscaping, but naturalistic gardening is not equivalent to ecological restoration. Because the species has established outside its native range, it should be planted responsibly in managed areas.

Plant toxicity and handling precautions: The seeds and roots are poisonous if ingested. Possible symptoms include stomach pain, nausea, vomiting, and diarrhea. Handling roots may also cause skin irritation. Wear gloves when handling roots, and keep seeds and plant material away from children and pets.

North Carolina Extension Gardener Plant Toolbox

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Regional planting considerations: Four O'Clock has become naturalized outside its original native distribution. Check local planting guidance and avoid uncontrolled spreading into unmanaged natural habitats.

Seed packet quantity: The original product information specifies 10 seeds per packet. The number of seedlings and established plants depends on seed viability, temperature, moisture, and cultivation conditions.

Organic designation: The supplied product information does not specify organic seed status or certification. No organic claim is made.

Intended use: These seeds are intended for ornamental flower garden planting. Planting seeds, roots, and other plant parts are not intended for direct consumption. This listing does not make medicinal, therapeutic, dietary supplement, or pest-control claims.

Natural variation: Mature height, flower color, flowering schedule, branching habit, fragrance, fruit production, and perennial survival may vary according to genetics, climate, sunlight, soil conditions, and moisture.

This listing describes Mirabilis jalapa for managed natural landscape gardens, cottage-style flower borders, evening planting displays, and ornamental container cultivation, with appropriate attention to self-seeding and plant safety.