White Marvel of Peru Organic Flower Seeds, Mirabilis jalapa for Landscape Gardens

White Marvel of Peru (Mirabilis jalapa), commonly known as White Four O'Clock Flower, is an ornamental flowering plant belonging to the Nyctaginaceae family. This white-flowering selection is recognized for its elegant trumpet-shaped blossoms, lush green foliage, bushy branching growth habit, and distinctive tendency to open its flowers during the late afternoon or early evening.

White Marvel of Peru is an attractive choice for ornamental landscape gardens, white-themed flower borders, cottage-style planting areas, moon gardens, patios, and outdoor container displays. Its white blossoms provide a gentle contrast against green foliage and create seasonal interest in gardens designed for both daytime and evening enjoyment.

Mirabilis jalapa is native to Mexico and Central America, with its accepted native range extending from Mexico to Nicaragua. Although traditionally known as Marvel of Peru, its accepted botanical distribution is not restricted to Peru. The Royal Botanic Gardens, Kew, recognizes the species as an accepted perennial flowering plant belonging to the Nyctaginaceae family.

One of the most distinctive ornamental characteristics of White Marvel of Peru is its late-afternoon flowering behavior. Unlike many flowers that open primarily in the morning, Four O'Clock blossoms generally begin opening as daylight decreases. They may remain open into the evening and part of the night.

The flowers have a narrow tubular base and a broad, flared opening. The white-flowering selection produces pale blossoms that stand out against the plant's rich green foliage. These flowers are particularly noticeable as evening approaches.

The white blossoms may also produce a pleasant fragrance. The combination of late-day flowering, light coloration, and potential evening fragrance makes White Marvel of Peru suitable for gardens near outdoor seating areas and pathways.

The plant develops simple, broad green leaves that are generally ovate to somewhat heart-shaped, with pointed tips and smooth margins. These leaves grow in opposite pairs along branching stems, creating a rounded ornamental appearance.

White Marvel of Peru is generally a bushy, freely branching plant. Multiple leafy stems develop during the growing season, supporting clusters of flowers near their upper portions.

Mature plants commonly reach approximately 45–120 cm (18–48 inches) tall and 30–60 cm (12–24 inches) wide. Actual dimensions vary according to genetics, soil conditions, sunlight, temperature, and available moisture.

Mirabilis jalapa is a tender perennial in sufficiently warm climates. In regions experiencing freezing winters, it is commonly grown as an annual flowering plant. Established plants develop thickened underground storage roots that may support regrowth when winter temperatures remain favorable.

After flowering, the plant develops distinctive black or dark brown, ribbed seed-bearing fruits. These structures may fall naturally into the surrounding soil and germinate under favorable growing conditions.

The species may self-seed vigorously in suitable climates. Removing mature fruits and unwanted seedlings helps maintain the desired landscape appearance.

White Marvel of Peru generally performs best in full sun, although partial shade is tolerated. It prefers reasonably fertile, well-drained soil and consistent moisture during establishment. Established plants have some tolerance for temporary dry conditions.

North Carolina State University Extension describes Four O'Clock as a branching ornamental perennial that can also be cultivated as an annual. It notes the species' preference for sunlight, tolerance of partial shade, fragrant evening flowers, and ability to self-seed.

The original supplied product information specifies 7 organic White Marvel of Peru seeds per packet. These seeds are intended for ornamental landscape and flower garden planting.

• Organic Flower Seeds: White Marvel of Peru seeds identified as organic in the supplied product information.

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

• White Flower Selection: Intended to produce white Four O'Clock flowers.

• Seed Quantity: Contains 7 seeds per packet.

• Common Names: White Marvel of Peru and White Four O'Clock Flower.

• Elegant White Blossoms: Produces trumpet-shaped flowers with flared openings.

• Late-Afternoon Flowering: Flowers generally open toward the end of the day.

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

• Bushy Branching Habit: Develops numerous leafy stems and a rounded appearance.

• Opposite Green Leaves: Features broad green leaves with pointed tips.

• Tender Perennial Lifecycle: May regrow during successive seasons in sufficiently warm climates.

• Annual Growing Option: Commonly cultivated as an annual in regions with freezing winters.

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

• Full Sun Preference: Generally grows best in sunny outdoor locations.

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

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

• Landscape Garden Appeal: Suitable for white-themed borders, moon gardens, and managed naturalistic landscapes.

• Distinctive Dark Fruits: Produces ribbed, dark-colored seed-bearing fruits after flowering.

Foliage and Appearance

White Marvel of Peru develops broad green leaves along its branching stems.

The leaves are generally ovate, sometimes with a slightly heart-shaped base and pointed tip.

Their margins are usually smooth.

The leaves develop in opposite pairs along the stems.

Young seedlings initially produce smaller green leaves before forming an extensive branching structure.

As plants mature, additional foliage develops along their growing stems.

The broad green leaves provide a contrasting background for the elegant white flowers.

Stem and Branch Characteristics

Mirabilis jalapa develops upright, branching herbaceous stems.

The stems are typically green, although reddish or purplish tones may sometimes occur.

Additional branches develop as the plant matures.

These branches create a rounded or moderately spreading growth habit.

Flower buds develop near the ends of branching shoots.

Under suitable warm growing conditions, established plants may produce numerous flowering stems.

Flower Characteristics

White Marvel of Peru produces white, funnel-shaped or trumpet-shaped flowers.

Each blossom has a narrow tubular base and a broader flared opening.

The white showy portion is formed by a petal-like perianth rather than separate conventional petals.

Botanical descriptions identify the flowers as approximately 2.5–3.5 cm across at the opening, although natural size variation occurs.

The flowers are usually arranged in small terminal clusters.

Flower buds commonly open during late afternoon or early evening.

Under favorable conditions, individual flowers may remain open into the night.

Overcast weather may encourage earlier opening.

Flower opening varies with light exposure, temperature, and seasonal conditions.

The common name Four O'Clock refers to the plant's usual flowering behavior rather than a precise opening time.

Kew's botanical description of Mirabilis jalapa confirms that the species can produce white, late-afternoon-opening, fragrant flowers.

Seed and Fruit Characteristics

Following flowering, White Marvel of Peru produces distinctive dark seed-bearing fruits.

These structures are usually rounded to oval.

Mature fruits generally become black or very dark brown.

Their surfaces are visibly ribbed and may appear slightly rough.

Botanically, these structures are called anthocarps.

Each anthocarp encloses a seed within persistent floral tissue.

Mature fruits may detach naturally and fall into the surrounding soil.

Under favorable conditions, fallen seeds can germinate and form new plants.

Removing mature fruits can help limit unwanted self-seeding.

Root Characteristics

White Marvel of Peru develops thickened underground storage roots as it matures.

These tuberous structures store resources that can support new growth.

In suitable warm climates, established plants may return during subsequent growing seasons.

New shoots may develop from the underground structures when favorable conditions return.

In frost-prone regions, freezing temperatures can damage the storage roots.

Gardeners may lift mature roots before severe winter conditions and store them in a protected location.

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

Growth Habit

White Marvel of Peru is a bushy, branching ornamental flowering plant.

Mature specimens commonly grow approximately 45–120 cm (18–48 inches) tall.

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

The plant develops a rounded form with multiple leafy branches.

The white flowers appear among the green foliage and create a soft ornamental display.

Its growth habit is suitable for managed landscape borders, cottage gardens, evening flower beds, and large outdoor containers.

Seasonal Development

White Marvel of Peru seeds germinate when appropriate warmth and moisture are available.

Young seedlings establish roots and develop opposite green leaves.

As growth progresses, additional stems and branches develop.

Flower buds form near the tips of mature shoots.

White blossoms open during late afternoon or evening.

Following flowering, dark ribbed fruits develop.

In favorable warm climates, flowering may continue through an extended growing season.

Established underground roots may support future seasonal regrowth.

In colder regions, the species is commonly cultivated as an annual.

Pollinator and Botanical Interest

White Marvel of Peru flowers may attract moths and other flower-visiting animals.

Their late-afternoon opening habit provides opportunities to observe evening flower activity.

North Carolina State University Extension identifies hummingbirds and moths among the visitors associated with Mirabilis jalapa.

The species also offers botanical interest through its white tubular flowers, opposite leaves, thickened storage roots, and distinctive ribbed fruits.

Sunlight Requirements

White Marvel of Peru generally performs best in full sun.

Choose an outdoor growing location receiving approximately six or more hours of direct sunlight daily.

Partial shade is tolerated, especially in hotter growing regions.

Adequate sunlight supports healthy branching and flowering.

Deep shade may limit flower production.

Soil Requirements

Mirabilis jalapa grows in a variety of garden soil types.

Loamy and sandy soils with suitable drainage are appropriate.

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

Well-decomposed organic matter may help improve soil structure.

Avoid severely compacted or continuously waterlogged soil.

For container cultivation, select a well-draining potting mixture.

Watering Considerations

Maintain gentle, consistent moisture during seed germination.

Young seedlings benefit from regular watering while their roots establish.

Established plants have some tolerance for occasional dry conditions.

Moderate watering supports foliage development and flowering.

Additional watering may be necessary during prolonged hot or dry periods.

Avoid continuously saturated growing conditions.

Temperature and Climate

White Marvel of Peru is a warm-season ornamental plant.

Seeds generally germinate more readily in warm soil.

In sufficiently mild climates, established plants can survive as perennials.

In frost-prone regions, they are commonly grown as annuals.

Established storage roots may survive mild winter conditions but can be damaged by severe freezing.

Garden Placement

Choose a sunny ornamental landscape border, moon garden, white-themed flower bed, cottage-style garden, patio planting area, or spacious outdoor container.

Position plants where late-afternoon and evening blossoms can be appreciated.

Allow sufficient room for mature branching growth.

Because Four O'Clock may self-seed, select a managed planting location where unwanted seedlings can be removed.

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

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

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

4. Check Soil Drainage: Ensure excess water can drain from the planting area.

5. Consider Indoor Seed Starting: Start seeds indoors before the outdoor planting season where 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 gently 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 Prolonged Soaking: Do not leave seeds submerged for excessive periods.

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

13. Cover with Soil: Gently cover the seeds with fine growing medium.

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

15. Maintain Warm Conditions: Temperatures around 20–25°C (68–77°F) are a practical starting range for propagation.

16. Maintain Gentle Moisture: Keep the growing medium lightly moist without waterlogging.

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

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

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

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

21. Support Root Establishment: Maintain moderate moisture as roots develop.

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

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

24. Prepare the Final Landscape Bed: Choose reasonably fertile, well-drained soil.

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

26. Transplant Carefully: Place seedlings at approximately their previous growing depth.

27. Water After Planting: Water moderately to support establishment.

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

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

30. Manage Seed Formation: Remove mature fruits when limiting unwanted self-seeding.

31. Maintain Seasonal Plants: In suitable warm climates, established roots may support regrowth during later seasons.

Seed propagation note: Four O'Clock seeds have relatively firm outer coverings. Overnight soaking may help soften the seed covering and encourage germination. North Carolina State University Extension recommends overnight soaking as an optional propagation technique. Actual emergence depends on seed viability, temperature, moisture, and growing conditions.

White-Themed Landscape Gardens

White Marvel of Peru contributes elegant pale blossoms and lush green foliage to managed ornamental landscape designs.

Moon Gardens

Its white, late-opening flowers make it especially suitable for evening displays.

Naturalistic Flower Borders

Its bushy form complements informal landscape arrangements where seasonal flowers are appreciated.

Cottage-Style Gardens

White trumpet-shaped flowers and broad green foliage complement cottage garden planting schemes.

Evening Flower Gardens

The plant's late-afternoon flowering habit makes it interesting for gardens enjoyed later in the day.

Patio Planting Areas

White Marvel of Peru can be cultivated in spacious outdoor containers near seating areas.

Pollinator Observation Gardens

Evening-opening blossoms may attract moths and other flower-visiting animals.

Botanical Education Gardens

The species offers opportunities to observe flower-opening behavior, opposite leaves, storage roots, and dark ribbed fruits.

Warm-Climate Perennial Gardens

In sufficiently mild climates, established plants may return during subsequent growing seasons.

Decorative Garden Borders

White Marvel of Peru can be planted along garden edges, defined landscape beds, and managed ornamental planting areas.

• Choose a sunny or partially shaded planting location.

• Provide reasonably fertile, well-drained soil.

• Maintain consistent moisture during germination.

• Consider overnight soaking before sowing.

• Avoid planting seeds excessively deep.

• Keep young seedlings in warm growing conditions.

• Provide adequate sunlight for flowering.

• Thin overcrowded seedlings when necessary.

• Allow sufficient spacing between mature plants.

• Water regularly during establishment.

• Maintain moderate moisture during extended dry periods.

• Avoid continuously saturated soil.

• Observe white flower buds and blossoms.

• Remove damaged or declining stems when necessary.

• Remove mature fruits to reduce unwanted self-seeding.

• Monitor surrounding soil for volunteer seedlings.

• Protect established plants from severe freezing conditions.

• Consider protected storage for mature tuberous roots in colder climates.

• Wear gloves when handling roots or mature plant material.

• Keep seeds and roots away from children and pets.

• Do not consume planting seeds, roots, or other plant parts.

• Check local planting guidance before introducing the species into unmanaged natural habitats.

White Marvel of Peru (Mirabilis jalapa) is a white-flowering ornamental selection recognized for its trumpet-shaped blossoms, late-afternoon flowering habit, broad green foliage, and bushy branching growth. It can be grown in managed landscape gardens, ornamental borders, moon gardens, and outdoor containers.

Botanical identification: Mirabilis jalapa is an accepted flowering species belonging to the Nyctaginaceae family. Its distinctive characteristics include opposite leaves, branching stems, funnel-shaped flowers, thickened underground roots, and dark ribbed fruits.

Common names: White Marvel of Peru and White Four O'Clock refer to the white-flowering selection of Mirabilis jalapa. The Four O'Clock name reflects the plant's tendency to open its flowers during late afternoon.

Native distribution: The Royal Botanic Gardens, Kew, identifies the accepted native range of Mirabilis jalapa as Mexico to Nicaragua. The species is now widely cultivated and naturalized outside this region.

White flower characteristics: This seed packet is identified as a white-flowering selection. Flowers are generally white, with narrow tubular bases and broad, flared openings. Natural variation may occur among seed-grown plants.

Flower opening behavior: White Marvel of Peru blossoms commonly open during late afternoon or early evening. Weather and available daylight may affect the opening schedule. Flowers do not necessarily open at exactly 4:00 PM.

Flower structure: The white showy portion of each flower consists of a tubular perianth rather than separate conventional petals.

Evening fragrance: Many Four O'Clock plants produce fragrant flowers, particularly during evening hours. Fragrance intensity depends on plant genetics and environmental conditions.

Perennial growth characteristics: The species develops thickened underground storage roots. In sufficiently warm climates, these roots can support regrowth during successive growing seasons.

Annual cultivation: In frost-prone regions, Four O'Clock is commonly grown as an annual. Mature underground roots may be lifted and protected during winter for replanting when conditions become suitable.

Seed germination: Seeds have relatively firm outer coverings. Overnight soaking may help encourage germination. North Carolina State University Extension recommends this optional technique.

Sunlight requirements: White Marvel of Peru generally performs best in full sun but tolerates partial shade. Adequate sunlight supports branching and flower development.

Soil and moisture requirements: The species prefers reasonably fertile, well-drained soil. Consistent moisture supports young seedlings, while established plants have some tolerance for dry conditions.

Mature plant size: North Carolina State University Extension identifies a typical mature height of 18 inches to 4 feet and a spread of approximately 12–24 inches. Actual dimensions depend on growing conditions.

Tuberous root development: Mature plants develop substantial underground storage roots that may support seasonal regrowth where winters are sufficiently mild.

Moon garden suitability: White Marvel of Peru is particularly suitable for evening garden displays because its white flowers open as daylight fades.

Pollinator observation: The flowers may attract moths and other visiting animals. North Carolina State University Extension identifies moths and hummingbirds among the flower visitors associated with this species.

Self-seeding and garden management: Mature plants can produce dark ribbed fruits that fall into surrounding soil. Volunteer seedlings may develop under favorable conditions. Remove mature fruits and unwanted seedlings where necessary.

Plant toxicity and handling precautions: North Carolina State University Extension identifies the species as having low-severity poisonous characteristics. Seeds and roots may cause gastrointestinal symptoms if ingested, and handling roots may irritate sensitive skin. Keep seeds and roots away from children and pets, and use gloves during root handling.

Regional landscape considerations: Four O'Clock has naturalized beyond its original native range. It may spread vigorously in suitable climates. Grow it in managed planting areas and check local guidance before introducing it near sensitive natural habitats.

Seed packet quantity: The original product information specifies 7 seeds per packet. Germination and the number of established plants depend on seed viability, temperature, moisture, and growing conditions.

Organic designation: These seeds are described as organic in the supplied product information. Specific certification documentation has not been independently verified.

Intended use: The seeds are intended for ornamental flower and landscape garden planting. Seeds, roots, and other plant parts are not intended for direct consumption. No medicinal, therapeutic, dietary supplement, or pest-control claims are made.

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

White Marvel of Peru is suitable for managed ornamental landscapes where its pale evening-opening flowers, bushy foliage, and seasonal growth can be appreciated while controlling unwanted self-seeding.