Mimosa pigra GIANT MOVING HERB (10 seeds)

Giant moving herb, also known as Mimosa pigra in Latin, is a plant in motion that belongs to the Fabaceae family. This fast-growing variety, native to South America and tropical America, has become widely distributed across Asia today. It is a large legume that can reach up to 4 meters in height.

The stems are woody, branched, and can reach several meters in height. They are notably covered with a multitude of sharp, curved, and robust thorns measuring between 5 and 10 millimeters.

Its foliage consists of light green, bipinnate leaves finely divided into numerous small leaflets. The leaves possess tactile sensitivity: they fold rapidly upon themselves when touched or at nightfall. They are arranged alternately along the stems.

The flowers appear in the form of small, globose pom-poms of pink or pale mauve during the summer. These spherical inflorescences, carried by short stalks (peduncles), are composed of a multitude of stamens that give them a feathery appearance.

The fruit is a flat, elongated pod, measuring 3 to 8 centimeters long. These pods are covered with stiff, dense hairs that give them a bristly look.

Giant moving herb seeds are brown or olive-colored and oval-shaped. They measure 4 millimeters in length. They are extremely resilient and can float on water, which facilitates their dispersal in flood-prone areas.

- Interests:

Botany and Mechanism

The most defining feature of Mimosa pigra is its unique ornamental and sensory appeal.
In addition to its highly decorative foliage, its leaves fold inward rapidly at the slightest touch, heat, or vibration.
This fascinating reactivity offers a truly unique visual experience and display in the garden.

An Exotic Structure for Enthusiasts

Its delicate blooms and robust, shrubby habit make it an ideal plant for enhancing exotic gardens.
Grown in a pot, it instantly creates a tropical atmosphere in a conservatory, greenhouse, or on a terrace during the summer.
It is a must-have species for collectors and lovers of astonishing botanical curiosities.

A Subject for Study and Scientific Research

This species is of major interest for botanical research due to its unique biological properties.
It serves as a prime study model for analysing the electrical and chemical signals circulating within plant tissues, as well as for conducting ethnobotanical research into plant movement and defence mechanisms.

- Germination and Sowing:

• The ideal period to sow Mimosa pigra begins in late May and lasts until the end of July, when temperatures are sufficiently warm.
• Soak the seeds in hot water for 24 hours to break dormancy and accelerate the germination process.
• Bury them in a pot or tray at a depth of 0.5 cm, then firm the soil.
• If possible, use a slightly acidic, fine, and aerated substrate.
• Water the crop gently with a hand sprayer.
• Place the tray in a greenhouse at a temperature between 30 and 35°C.
• Germination will generally begin 3 to 5 weeks after sowing.
• When the seedlings reach 10 to 15 cm in height, they should be transplanted into separate pots or placed directly in the ground in mild climates.

- Soil / Substrate Type:

Mimosa pigra is not demanding regarding soil type but shows a marked preference for heavy, clayey, and alluvial-rich soils. It perfectly tolerates water-saturated or even totally submerged terrain for several months. It tolerates poor, acidic, or neutral soils as long as they retain moisture.

- Exposure / Sunlight:

This shrub requires full sun exposure to develop optimally. It is a pioneer species that rapidly colonizes open spaces devoid of tall vegetation.

- Temperature / Hardiness:

Native to tropical regions, this plant has no frost hardiness. It flourishes in warm climates where temperatures remain between 20°C and 35°C. The aerial parts perish as soon as the thermometer drops consistently toward 0°C.

- Watering / Water Requirements:

Water requirements are very high. In its natural environment, it grows along riverbanks, lakes, and in floodplains. For controlled cultivation, the substrate must remain constantly waterlogged.

- Multiplication / Propagation:

Propagation is done almost exclusively by seed. Cuttings from semi-woody stems are technically possible but rarely practiced given the ease of natural reproduction.

This article was written by Julien on 07/15/2026.