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Mirabilis jalapa

Mirabilis jalapa
Four o'clock flower, Marvel of Peru

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Beautiful tubers resembling black radish. Plant upon receipt. Waiting for growth and the next fragrant bloom.

Nathalie, 11/04/2021

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This plant carries a 6 months recovery warranty

More information

Value-for-money
From the large black roots of these night beauties emerge seedlings that form in one season opulent bushes of shiny green leaves, crowned with flared trumpet flowers, in a range of extended colours, solid or variegated. These flowers open in the late afternoon, releasing a sweet fragrance, and close when struck by the sun. These tender perennials, but easy to grow, are often treated as annuals outside of our mild regions. They appreciate fertile soil and a semi-shaded exposure.
Flower size
4 cm
Height at maturity
80 cm
Spread at maturity
70 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -6°C
Soil moisture
Dry soil, Moist soil
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Best planting time April to May
Recommended planting time March to May
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Flowering time July to October
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Description

The Four O'Clock Flower, known as Mirabilis Jalapa in Latin, grows rapidly from a black root that resembles a salsify. In the span of one season, the plant forms a lovely bush that blooms from July to October. This mix consists of several varieties with various colours. The flowers of the Four O'Clock Flower, pleasantly fragrant in the evening, open in cloudy weather or in the late afternoon. They are tender perennials, but easy to grow, and are often treated as annuals outside of mild regions. A semi-shaded or even shaded exposure allows you to enjoy the flowers even during the day. Create beautiful flower pots with these Marvels of Peru! Sold in packs of 10 bulbs in various colours.

 

Mirabilis jalapa, or Marvel of Peru, is a herbaceous perennial plant in the family Nyctaginaceae, native to dry tropical regions of Central and South America, such as Guatemala, Mexico, Chile, and Peru. It develops a large tuberous black root, which has traditional medicinal uses in various regions of the world.

The Four O'Clock Flower is a herbaceous perennial plant that reaches a height of 70-80cm (28-32in), sometimes more, and occupies a ground area of 40 to 60cm (16 to 24in). It is not very hardy, but its rapid growth allows it to be cultivated as an annual. Under our climates, it disappears in winter, blooms from June to October, but in the tropics, it is perennial and blooms all year round. The funnel-shaped flowers come in different colours including pink, red, yellow, and white. The flowers open in the evening and close the next day when the sun hits them. They emit a sweet fragrance from dusk until the middle of the night. This particular characteristic gave the plant its name Four O'Clock Flower: its fragrant flowers have fluorescent pigments that create patterns on the corolla and attract pollinating sphinx moths. The black fruit appears at the base of the flower once it has fallen. The dichotomous stems are solid, quadrangular, fleshy, green to reddish, thickened at the nodes, and bear opposite ovate or slightly cordate leaves, bright green, lighter on limestone soil and in full sun.

 

You will plant the Four O'Clock Flower roots upright, with the top covered by 7cm (3in). They are used in flower beds, at the base of east-facing walls, along a path, or near a porch, to be able to enjoy the flowers. They are quite difficult to combine, so they are most often planted in groups to create multicoloured flower beds that bloom for four months. They also grow very well in large, deep pots, taking care of watering and fertilizing. In mild areas, especially by the coast, you can leave the bulbs in the ground. The Four O'Clock Flower can be grown like a dahlia, and its tuber can be overwintered frost-free in a sandy mix.

 

Plant habit

Height at maturity 80 cm
Spread at maturity 70 cm
Growth rate fast

Flowering

Flower colour multicoloured
Flowering time July to October
Flower size 4 cm
Fragrance slightly scented

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Mirabilis

Species

jalapa

Family

Nyctaginaceae

Other common names

Four o'clock flower, Marvel of Peru

Origin

South America

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Planting and care

The Four o'clock flower is an easy plant to grow, provided it is given a sheltered position away from strong winds, sunny or partly shaded, especially if you are growing it in a region where summers are hot. In the sun, the plant will be more floriferous, but the flowers will stay open longer on a plant that is slightly shaded in the afternoon. Under these conditions, it grows very rapidly.

It prefers to grow in light, humus-rich and well-drained soils that stay moist in summer and are close to neutral pH. The more fertile the soil, the more the plant will show significant development.

Growing it in a pot is perfectly possible with a mix of 80% potting soil and 20% garden soil in a deep container.

It is sensitive to overwatering. In regions with cold winters, it should be dug up and the root should be stored frost-free, just like Cannas or dahlias.

 

Planting period

Best planting time April to May
Recommended planting time March to May
Planting depth 7 cm

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Container
Hardiness Hardy down to -6°C (USDA zone 9a) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Any
Soil moisture Dry soil, Moist soil, Deep, supple, rich.

Care

Pruning No pruning necessary
Soil moisture Dry soil, Moist soil
Overwinter Needs to be stored
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