Medicago lupulina
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Medicago lupulina

یونجه سیاه · Black medick · Hop Clover · Yellow trefoil · Nonesuch

Tier 1 Difficulty: medium Water: low Light: full_sun
Water every
3 days
Temperature
5–32 °C
Soil pH
6–7
Hardiness
Zone 4–8
Click count
941
Observations
5,803

Description

Source: leafsnap

Medicago lupulina, commonly known as black medick, nonesuch, or hop clover, is a plant of dry grassland belonging to the legume or clover family. Plants of the genus Medicago, or bur clovers, are closely related to the true clovers (Trifolium) and sweet clover (Melilotus). Like the true clovers, black medick has three leaflets and a small, yellow flower closely resembling those of lesser trefoil. Black medick belongs to the same genus as alfalfa.

🌳 Although it may seem unremarkable, black medick serves an important ecological purpose. Its modest yellow flowers contain nectar sought by bees, helping with honey production. Beyond its appearance, black medick enhances soil because it belongs to a select group of plants that host nitrogen-fixing bacteria in their roots. This symbiotic relationship is essential for improving soil quality and thus supporting nearby vegetation. Additionally, its foliage was once used to soften leather, though that use is largely forgotten today.

🎭 Spring's rebirth

Care Guide

💧 Water Every 3 days

Black medick, native to moderate climates, thrives in conditions where it receives consistent moisture, such as from weekly watering. While it can tolerate drought, it adapts well to different moisture levels. Typically grown outdoors, its growth cycle—including both its vegetative and reproductive stages—is significantly influenced by the availability of water.

Suggested frequency: Every 3 days
FAQ
How should I water my Black medick plant?

Black medick can be watered using various tools such as a garden hose with a spray nozzle or a watering can. It is not particular about the type of water it receives, whether it's rainwater, tap water, or filtered water. It is recommended to avoid watering this plant from above as it can harm the leaves and flowers and potentially cause disease. Instead, a drip irrigation system is a good option for watering Black medick as it distributes water evenly and directly to the soil. When it comes to watering a container-grown Black medick, you can use a cup, watering can, or tap to apply water directly to the soil.

What should I do if I give my Black medick too much or too little water?

Understanding how to properly care for your Black medick can help prevent both underwatering and overwatering issues. If your plant shows signs of lacking moisture, such as wilting or dry soil, the solution is straightforward: increase the frequency of your watering. On the other hand, overwatering can be more problematic, as it can lead to diseases and ultimately the decline and death of the plant. To prevent this, it is essential to select an appropriate growing location with ample sunlight for soil drying and good drainage to prevent waterlogging. If you find that you have been overwatering a potted Black medick, consider transferring it to a new pot with well-draining soil and drainage holes. The repotting process should involve using loose soils and a pot that efficiently drains excess water.

How frequently do I need to water my Black medick plant?

Black medick needs regular watering throughout the growing season. In spring, water once a week and increase to two or three times a week as it gets warmer. However, be careful not to overwater as it can be harmful to the plant. Keep the soil moist but not overly wet. If you have Black medick in a pot, you will need to water it more often compared to plants in the ground. Typically, water container-grown Black medick a few times a week, while in-ground plants only need watering once a week.

How much water does my Black medick plant require?

There are a few ways to decide how much water your Black medick plant needs. Some gardeners feel the soil to determine moisture levels. They suggest watering until the top six inches of soil feel moist. Another approach is to use a specific measurement. Generally, Black medick plants need about two gallons of water per week, taking into account temperature and soil dryness. However, following strict guidelines can lead to overwatering if your plant needs less water. If you are growing Black medick in a container, you should use a different method. Water enough to moisten all dry layers of soil, which you can check by sticking your finger in the soil. Alternatively, you can water until you notice some excess water draining from the pot's holes.

How do I know if I am giving enough water to my Black medick?

Black medick can be a bit tricky when it comes to watering. While they have deep roots that need weekly watering, they are also prone to root rot and browning if overwatered. Underwatering is less of a concern as these plants can survive without extra watering for a while. However, if you prolong periods without watering, they may start to wilt and develop dry leaves.

☀️ Light Full sun

Black medick performs best when it receives a generous amount of sunlight each day and can tolerate stretches of somewhat reduced light. Native to a naturally sunny environment, it relies on that familiar sun exposure for healthy growth. Plants can have trouble with either too little or too much sun, showing signs such as withered leaves or stunted development.

Ideal: Full sun
FAQ
What are the sunlight requirements for Black Medick?

Black medick requires full sunlight to thrive, characterized by more than 6 hours of direct sunlight daily. It can also tolerate partial sun, which involves about 3-6 hours of direct sunlight. It's essential to observe the movement of sunlight through your garden to find the ideal spot for your plants, ensuring they receive the right balance of light and shade. This balance is crucial for their growth and overall health.

How important is sunlight for the growth of Black Medick?

Sunlight plays a crucial role in the healthy development of Black Medick. Originating from environments with abundant sunlight, the plant's growth relies significantly on exposure to generous amounts of sunlight daily. It can endure periods of moderately reduced light but may struggle under conditions of excessive or insufficient sunlight, resulting in symptoms such as withered leaves or stunted growth. Additionally, when natural sunlight is not sufficient, especially during winter or in less sunny locations, artificial lighting can be utilized to provide the necessary light spectrum and intensity for optimal growth.

What symptoms indicate insufficient or excessive sunlight exposure in Black Medick?

Symptoms of insufficient sunlight in Black Medick include smaller new leaves, leggy or sparse growth, faster leaf drop, slower or halted growth, and pale-colored new leaves. Additionally, excessive sunlight can cause chlorosis (yellowing of leaves), sunscald, leaf curling, wilting, and leaf scorching. These symptoms reflect the plant's struggle to adapt to inappropriate light conditions, affecting its ability to photosynthesize and maintain health.

What solutions can help Black Medick receive adequate sunlight?

To ensure Black Medick receives adequate sunlight, gradually move plants to sunnier locations to receive at least 6 hours of direct sunlight daily. For indoor plants, use south-facing windows and keep curtains open during the day or provide artificial light for at least 8 hours daily. Outdoors, move plants to better-lit spots gradually to avoid sunburn. Reducing obstructions, such as pruning obstructive tree branches, and transplanting smaller plants to sunnier locations with good drainage are also effective solutions. It's important to note that parts of the plant affected by insufficient sunlight may not recover, but new growth should be healthy after improving light exposure.

🌡️ Temperature 5–32.2°C

Black medick is native to habitats with temperatures ranging from 68 to 95 °F (20 to 35 °C). While it is suited to temperate climates, it prefers warmer conditions. Seasonal changes to these temperature ranges are generally not necessary.

Ideal temperature: 5–32.2°C
FAQ
What is the native environment and preferred temperature range for Black medick?

Black medick, also known by its botanical name Medicago lupulina, thrives in environments where the temperature ranges from 68 to 95 °F (20 to 35 °C). Although it is adapted to moderate climates, it prefers warmer conditions. Special seasonal adjustments in temperature are usually not required, thanks to its strong cold resistance.

Does Black medick require special cold protection measures during winter?

Black medick has strong cold resistance and usually does not require special frost protection measures during winter. However, if winter temperatures are expected to drop below -30°C, it's important to provide cold protection by covering the plant with soil or straw. Abundant watering before the first freeze in autumn is also recommended to keep the soil moist, which helps prevent drought and water scarcity during winter and early spring.

How does Black medick respond to low temperature conditions?

Black medick is cold-tolerant and performs best when temperatures remain above 20°C. It should be kept above 0°C during winter. If temperatures fall below -30°C, while there may not be noticeable changes during the winter, the plant may exhibit a decrease in sprouting or fail to sprout at all during spring. In such cases, it's advised to remove any parts of the plant that have failed to sprout when spring arrives.

What should be done if Black medick is exposed to high temperatures?

During the summer, it's important to keep Black medick below 35°C. Exposure to temperatures above 38°C can cause the leaves to lighten in color, become prone to curling and sunburn, and in severe cases, the entire plant may wilt and dry out. To remedy this, trim away the sunburned and dried parts of the plant. Move the plant to a location with shade during the midday and afternoon, or use a shade cloth to protect it. Additionally, watering the plant in the morning and evening will help keep the soil moist.

💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

Black medick does well with regular, dilute applications of fertilizer to encourage healthy leaf development. Fertilize Black medick about once a month during the summer. Nitrogen is essential for foliage, so providing nitrogen-rich fertilizers helps Black medick flourish.

🪴 Pot & Repot Every 12 months
Suggested frequency: Every 12 months
✂️ Pruning
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Medicago lupulina has no toxic effects reported.

Characteristics

Plant Type
Herb
Life Cycle
Annual, Perennial, Biennial
Genus
Medicago
Family
Fabaceae
Hardiness Zone
4-8
Mature Height
10 cm to 52 cm
Mature Spread
15 cm to 30 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Yellow
Flower Size
2.54 cm
Bloom Time
Late spring, Early summer, Mid summer
Planting Time
Autumn, Winter
Harvest Time
Early summer, Mid summer
Native Area
Libya, Turkey, Sweden, India, Slovakia, Montenegro, Pakistan, Slovenia, Morocco, Croatia, Belarus, Germany, Koppen, Ethiopia, Romania, Latvia, Belgium, Moldova, Portugal, Netherlands, Saudi Arabia, Tunisia, Cyprus, Bulgaria, Ukraine, Lebanon, China, Afghanistan, Syria, Kyrgyzstan, Kazakhstan, Italy, Mongolia, Finland, Iran, Azerbaijan, Egypt, Austria, Yemen, Uzbekistan, Russia, Iraq, Iceland, Estonia, South Korea, France, Nepal, Tajikistan, Czech Republic, Armenia, Poland, Greece, Serbia, Lithuania, Norway, Spain, Switzerland, Denmark, Israel, Albania, Ireland, United Kingdom, Hungary, Algeria, Turkmenistan

Tags (6)

Common Names (20)

ar یونجه سیاه
en Black medick
en Hop Clover
en Yellow trefoil
en Nonesuch
en English trefoil
en Hop trefoil
en Black medic
en Black Medic Clover
en Hop Medic
en Trefoil
en Black Clover
en Spotted Burclover
en Blackseed
en Black Medick Clover
en Blackseed Hop Clover
en Hop Medick
en Minette
en Tr≠bol Amarillo
ru Дүжер-меде хмель хевирлиг