Mimosa pudica
SPECIMEN · FROM THE LIBRARY
Mimosa pudica

Mimosa Pudica

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A NOTE OF INTEREST

Mimosa pudica, commonly known as the sensitive plant or touch-me-not, is a fascinating member of the Fabaceae family. This small shrub can grow up to 50 cm in height and features delicate, fern-like leaves. Its leaves are remarkable because they are highly sensitive, responding to touch or movement by folding up and drooping down.

Native to South America, Mimosa pudica has been introduced to many other parts of the world as an ornamental plant. It thrives in warm climates with plenty of sunlight but can also grow well indoors with proper care.

In addition to its unique leaf movements, Mimosa pudica produces small, pinkish-purple flowers that bloom throughout the year. These flowers are followed by seed pods that contain several seeds.

The small shame plant opens and closes on its own. While it isn't boastful, it carries a beautiful sentiment. Its pink flowers add a whimsical charm reminiscent of a little girl's playful nature. FUN FACT · FROM THE LIBRARY

Various parts of this plant have been used in traditional medicine to treat conditions like skin diseases, respiratory problems, and digestive issues. However, it's important to note that these medicinal uses have not been scientifically validated.

Overall, Mimosa pudica is an intriguing and attractive addition to any garden or indoor space, thanks to its unique leaf movements and delicate appearance.

A note from PlantMom

The sensitive plant is largely disease-resistant and generally not prone to illnesses. However, it can develop leaf spots if light and ventilation are poor or if it is overwatered. Its care level is considered easy — it mainly needs regular watering and little else. The sensitive plant is suitable for people who lack the time and energy to provide regular care.

— PlantMom
CARE GUIDE

How to keep Mimosa Pudica.

Light

The sensitive plant flourishes with plentiful sunlight, reflecting its origins in open habitats. Its vigor and growth are enhanced by ample sun exposure, particularly during its main growth periods. Conversely, insufficient sunlight can inhibit its development. Nevertheless, the sensitive plant can also tolerate areas with more moderate sun exposure.

Water

The shame plant thrives in tropical conditions, preferring consistent moisture and high humidity. While it has moderate drought tolerance, it does best in slightly damp soil. Watering it weekly helps maintain its evergreen foliage. This is especially important indoors, where environmental control is essential for its continuous growth.

Humidity

This plant needs special care because it loves high humidity levels of 60-80% or more. The best way to achieve this is by placing a humidifier near the plant. Daily misting is also essential! Make sure the room has good ventilation.

Temperature

The sensitive plant plant grows best in a temperature range of 68 to 105 ℉ (20 to 41 ℃) and is indigenous to tropical and sub-tropical areas. During summer it can endure slightly higher temperatures but might need shading to avoid leaf scorching. In colder months, keep it away from cold drafts and ensure the temperature stays at or above 50 ℉ (10 ℃).

Fertilizer

The Sensitive plant does well with regular, dilute fertilizer applications to encourage healthy leaf development. You should feed the Sensitive plant about once a month during the summer. Nitrogen is essential for foliage, so providing nitrogen-rich sources helps the Sensitive plant thrive.

Pruning

Pruning the shame plant from early to late spring encourages bushier growth and improves air circulation. Use sharp pruners to remove dead stems and shape the plant, which helps prevent it from becoming leggy. Regular pruning keeps the plant compact and promotes healthy new growth. Handle the plant gently, as its foliage is quite sensitive.

Pot & Repot

When repotting Sensitive plant, choose a pot 1–2 inches (2.5–5.1 cm) larger in diameter and ensure it has good drainage. Use a well-draining potting mix and consider adding perlite for extra drainage. Repot in spring or early summer, water thoroughly afterward, and place it in a shady spot at first.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Annual, Perennial, Biennial
Genus
Mimosa
Family
Fabaceae
Hardiness Zone
10-13
Mature Height
91 cm
Mature Spread
49 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Pink
Flower Size
1.02 cm
Bloom Time
All year round
Planting Time
Spring
Harvest Time
All year round
Native Area
Belize, Honduras, Guatemala, Dominican Republic, Panama, Colombia, Bahamas, Haiti, Bolivia, Myanmar, Venezuela, Guyana, El Salvador, Nicaragua, Brazil, Ecuador, Suriname, Costa Rica
ALSO KNOWN AS

Other names.

en Touch-me-not en Sensitive-plant en Shame Lady en Sensitive-weed en Shameplant en Common sensitive-plant en Sensitive en Sensitive Grass en Shame Bush en Shame Face en Shame Weed en Shame Lady Shame en Wild Tantan en Herbe Sensible en Humble Plant en Mori Vivi en Pope Haavare en Touch Me Not en Trompe la Mort en Makahiya en Makahiya (tagalog) en Putri malu en అత్తి పత్తి en Thothachevinghe en Leave me alone en Lajuki bon en Mimosa en লজ্জাবতী en Mary Mary close your door ar گل قهر
FREQUENTLY ASKED

Reader questions.

How should I water my Shame plant?

There are various ways to water a Shame plant, such as using a garden hose with a spray nozzle, a watering can, or any other regular watering tool. The plant is not too particular about the type of water it receives and can thrive with rainwater, tap water, or filtered water. It is best to avoid watering the plant from above, as this can harm the leaves and flowers and may possibly lead to disease. Instead, using a drip irrigation system is often the most effective method for providing water evenly and directly to the soil. When watering a Shame plant that is grown in a container, you can follow a similar approach but change the tools used, such as a cup, watering can, or your tap to apply water directly to the soil.

Why should I give plant food to my Shame plant?

Plants require nutrients for growth, but some can obtain them naturally without additional fertilizer. Shame plants, like other plants, rely on nutrients for growth and internal processes. Nitrogen, phosphorus, and potassium are the main nutrients that plants need, with nitrogen being vital for foliage growth. Shame plants often struggle to obtain enough nitrogen from the soil, so many gardeners choose to provide additional nitrogen through fertilizers.

What are the sunlight requirements for the Shame Plant (Mimosa pudica)?

The Shame Plant thrives under full sunlight, necessitating more than 6 hours of sunlight daily for optimal growth, reflecting its adaptation to open habitats. It can also grow in partial sun, which means about 3-6 hours of sunlight a day. However, the plant's growth may be hindered without adequate sunlight. Despite this, the Shame Plant has a certain level of resilience and can survive in moderately sunlit areas. It's important to observe the movement of sunlight through your garden to identify the ideal location for your plants, balancing the right amount of light and shade to ensure their well-being.

What temperature conditions are preferred by the Shame Plant (Mimosa pudica)?

The Shame Plant (Mimosa pudica) thrives in a temperature range of 68 to 105°F (20 to 41°C) and is native to tropical and sub-tropical regions. During the summer, it can tolerate slightly higher temperatures but may need shading to prevent leaf scorching. In the colder months, it's crucial to protect the plant from cold drafts and ensure the temperature remains above 50°F (10°C) to avoid damage. The plant is extremely heat-loving, so cold temperatures can cause harm. Indoor care during autumn and winter involves placing it near a bright window but away from heaters, maintaining indoor temperatures above the minimum suitable growth temperature for optimal health.

What should I do if I give my Shame plant too much water or too little water?

To help an underwatered Shame plant, simply water it more regularly when you notice it needs moisture. However, overwatering can lead to more severe issues, like disease and decline. To prevent this, choose a well-lit spot with good drainage so excess water can drain properly. If you overwater a potted Shame plant, consider changing the pot to one with better drainage and loose soil.

When should I fertilize my Shame plant?

To help Shame plant thrive, it's recommended to fertilize it about once a month during its active growth period, which is typically spring and summer. It's important to avoid fertilizing during fall and winter when the plant is less active. Simply look out for signs of new growth as an indication that it's time to start fertilizing. Whether your Shame plant is grown outside or indoors in a container, the fertilization schedule remains the same. However, if it's in a container, you may not need to fertilize for the first one to two months. Container plants usually have sufficient nutrients in the potting soil, so it's best to start fertilizing after the plant has been in the same soil for a while.

How can artificial lighting support Shame Plants indoors?

Indoor Shame Plants require sufficient lighting to thrive, especially in conditions where natural sunlight is scarce, like during winter or in less sunny spaces. Artificial lighting, such as LED lights, can be a valuable solution to supplement sunlight, promoting healthier and faster growth. These lights should be customized to offer the specific wavelengths needed by the plants, with full sun plants requiring 30-50 watts per square foot, partial sun plants 20-30 watts per square foot, and full shade plants 10-20 watts per square foot. Proper placement involves setting the light source 12-36 inches above the plants and ensuring they receive 8-12 hours of light daily to mimic the natural daylight hours.

How does low temperature affect the Shame Plant and what can be done?

Low temperatures are not tolerated well by the Shame Plant. It prefers to be kept in warmer conditions, ideally above the minimum suitable growth temperature. When exposed to temperatures below the lower limit for growth, the plant's leaves may lighten in color and, following frost damage, turn brown or black, exhibiting wilting and drooping. To salvage a plant affected by low temperatures, trim off the frost-damaged parts and move it indoors to a warmer environment. It is suggested to place it near a south-facing window for ample sunlight while avoiding proximity to heaters or air conditioning vents, which could cause air dryness.

How often should I water my Shame plant?

The Shame plant requires regular watering throughout the growing season. In the spring, watering once a week is recommended. As the season progresses and temperatures rise, you may need to increase watering to two or three times a week. However, it's important not to exceed this rate as it can harm the plant. It's also important to keep the soil relatively moist but not overly wet, regardless of watering frequency. When it comes to Shame plants in pots, they may need more frequent watering due to the soil heating up and drying out faster. Typically, watering a potted Shame plant a few times a week is necessary, compared to just once a week for a plant in the ground.

When should I not add fertilizer to my Shame plant?

- Avoid fertilizing a Shame plant that is not healthy, such as when it has a disease or insect pests. - Don't fertilize a dehydrated plant, as it will worsen the problem. - Only apply fertilizer to healthy plants. - When watering, avoid splashing fertilizer onto the leaves or stem, as it can cause burned spots. - Unless you're using a specialized foliage fertilizer, ensure it doesn't directly touch the plant.

What are common symptoms of inadequate light in Shame Plants, and how can they be addressed?

Shame Plants may showcase various symptoms when subjected to inadequate light, including smaller new leaves, leggy or sparse growth, early leaf drop, slower or halted growth, paler new leaves, and discoloration such as chlorosis. Other symptoms under intense sunlight exposure include sunscald, leaf curling, wilting, and leaf scorching. To mitigate these issues indoors, gradually increasing sunlight exposure by moving plants to sunnier locations or using artificial lighting can be effective. For outdoor plants, a gradual adjustment to more sunlight is recommended to prevent sunburn. Addressing obstructions to sunlight and, when feasible, transplanting the plant to a sunnier location with good drainage can also help improve light access.

What should be done if the Shame Plant is exposed to high temperatures?

During the summer, the Shame Plant should ideally be kept below the maximum suitable growth temperature. Exposure to temperatures above the maximum tolerable level can lighten the color of the leaves and increase susceptibility to sunburn. In such cases, trim the sunburned and dried-up parts of the plant. To protect the plant, move it to a shaded location during the intense midday and afternoon sun. It's also beneficial to water the plant in the morning and evening to maintain soil moisture, helping the plant to cope with high temperatures.

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