Yellow sweet clover(Melilotus officinalis)

Yellow sweet clover (Melilotus officinalis)

Also known as: Yellow sweet-clover, Common melilot, Cornilla real, Field melilot

Yellow sweet clover is a valuable addition to pastures for several reasons. As a nitrogen-fixing legume, it enhances soil fertility, benefiting overall pasture health. Its bright yellow flowers attract a variety of pollinators, boosting ecosystem diversity. Additionally, the plant provides seeds that serve as food for small wildlife, while its dense growth offers shelter for ducks and small mammals. Though livestock might initially find its taste bitter, they typically adapt over time and come to accept it as part of their diet.

Attributes of Yellow sweet clover

Lifespan
Annual, Biennial
Plant Type
Herb
Plant Height
40 cm to 1 m
Spread
1.8 m
Leaf Color
Green
Flower Size
5 mm to 6 mm
Flower Color
Yellow White

ForwardPlant - Identify plants with a snap

Identify and diagnose plants, get toxicity alerts, and explore safety guides for all types of fungi.

Try for Free

Images of Yellow sweet clover

Yellow sweet clover(Melilotus officinalis)
Yellow sweet clover(Melilotus officinalis)
Yellow sweet clover(Melilotus officinalis)
Yellow sweet clover(Melilotus officinalis)

Quickly Identify Yellow sweet clover

1
An upright biennial herb, the plant can grow up to 2 meters tall. Leaves are trifoliate, and it produces elongated clusters of small yellow flowers. The leaves are alternate and pinnate with oblong or elliptic leaflets.

Scientific Classification of Yellow sweet clover

Phylum
Vascular plants
Class
Dicotyledons
Order
Fabales
Family
Legume
Genus
Melilots
Species
Yellow sweet clover

Planting and Growing of Yellow sweet clover

Care Difficulty
Easy
Watering Schedule
Every 4 days
Sunlight Requirements
Full sun
Sunshine Duration
6-10 hours
Ideal Temperature
60-75℉
Soil Type
Potting Mix, Peat Mix
Soil pH
6.5-7.5
Fertilizer Type
Balanced
Pruning Season
Spring, Summer
Pruning Area
Branches, Leaves
Pruning Frequency
Once a year
Repotting Season
Spring
Pot Type
Plastic, Ceramic

water icon How to Water Yellow sweet clover?

Melilotus officinalis prefers well-drained soil and requires moderate moisture. Water it deeply with about 500 ml during each session to ensure the soil is thoroughly moistened but not soggy. The goal is to allow the topsoil to dry out slightly between waterings.
What are the symptoms of an underwatered Yellow sweet clover?
What should I do if my Yellow sweet clover is not getting enough water?
What are the symptoms of an overwatered Yellow sweet clover?
How to save an overwatered Yellow sweet clover?

sunlight icon What Are the Sunlight Requirements for Yellow sweet clover?

Sunlight Requirements: Full sun, Partial sun
Duration of light: 6-8 hours daily
Melilotus officinalis thrives ideally in full sun or partial sun conditions. Optimal sunlight positively impacts its growth, encouraging lush foliage, robust stems, and vibrant blooms, critical for both ornamental and ecological benefits.
What are the ideal lighting conditions for Melilotus officinalis?
What solutions can optimize its lighting conditions?
What are the benefits of optimal sunlight exposure?

temperature icon What Is the Ideal Temperature Range for Yellow sweet clover?

Ideal Temperature: 60 ~ 75℉
Melilotus officinalis thrives optimally when grown within the temperature range of 60 to 75 degrees Fahrenheit. At these temperatures, the plant's metabolic processes, including photosynthesis and respiration, occur efficiently, resulting in vigorous growth. This range ensures that the plant can absorb nutrients effectively and maintain high rates of physiological functioning.

soil icon What Soil is Best for Yellow sweet clover?

Soil type: Sandy loam, Loam, Calcareous soil
Soil PH: 6.5 ~ 7.5
Melilotus officinalis thrives in nutrient-rich soils that provide the essential macro and micronutrients necessary for healthy growth. Adequate nutrient supply enhances its nitrogen-fixing abilities, promoting better plant development and improving soil fertility. The plant requires well-draining soil to prevent waterlogging, which can lead to root rot. Well-drained conditions ensure that the roots receive adequate oxygen, boosting the plant's health and resilience against fungal diseases. Adding organic matter like compost enhances soil structure and fertility, promoting better root penetration and microbial activity. This results in improved nutrient uptake and robust plant growth, indispensable for Melilotus officinalis.

fertilize icon How to Fertilize Yellow sweet clover?

Fertilizer type: Balanced
For Melilotus officinalis, the fertilizer amount should be moderate due to its ability to fix nitrogen. Over-fertilizing can lead to lush vegetative growth at the expense of flowers. Use a balanced 10-10-10 fertilizer, applying roughly one tablespoon per gallon of water for liquid feeding.

prune icon How to Prune Yellow sweet clover?

Pruning Time: Spring, Summer
Start by removing any dead or damaged stems to enhance the plant's overall appearance and health. Use sharp, clean pruning shears to make clean cuts at angles, which help prevent water accumulation that can lead to disease. Next, trim back the plant by a third to control its size and encourage bushier growth and more flowering, ensuring that you leave enough healthy growth for the plant to thrive. To reduce the risk of fungal infections, it’s essential to prune your Melilotus officinalis for better air circulation. Cut back overly dense parts of the plant by removing some of the interior branches, which ensures that air can flow freely through the plant. This not only minimizes the risk of disease but also helps the plant photosynthesize more effectively, leading to healthier growth and more prolific blooming.

propagate icon How to Propagate Yellow sweet clover plant?

Propagate Time: Early spring, Spring
1
Soak Melilotus officinalis seeds in water overnight to soften the seed coats and encourage germination. This step is crucial as the seeds have a hard outer shell that can impede sprouting. After soaking, drain and dry the seeds slightly before sowing them in seedling trays filled with potting soil.
2
Scatter the seeds evenly over the prepared potting soil in the seedling trays, covering them lightly with a thin layer of soil. Keep the soil consistently moist but not waterlogged to ensure proper germination. Placing the trays in a warm, sunny location will facilitate faster seed sprouting.
3
Once the seedlings are large enough to handle and have developed a few true leaves, they are ready to be transplanted to individual pots or garden beds. Carefully transfer each seedling to minimize root disturbance, ensuring that they are planted at the correct depth and spacing.

repot icon How to Repot Yellow sweet clover plant?

Repotting frequency: Every two to three years
1
Melilotus officinalis, or yellow sweet clover, signals the need for repotting when its roots begin emerging from drainage holes. Another sign is the plant appearing stunted despite adequate watering and light. These indicators show the plant has outgrown its pot and requires more room to thrive.
2
Select a pot that is 2-3 inches larger in diameter than the current one. This offers the roots enough space to spread while preventing waterlogging by maintaining proper drainage. Clay pots are ideal as they allow moisture to evaporate faster, benefitting this plant's preference for well-drained conditions.
3
Opt for a well-drained loamy soil mix that balances moisture retention and drainage. This type of mix mimics the plant's natural environment, promoting healthy growth and reducing the risk of root rot.

ForwardPlant - Identify plants with a snap

Find the best spots for them to optimize their health, simply using your phone.

Try for Free

Toxicity

Ingestion

Identify toxic plants for your safety

Learn which plants are harmful to you and your pets, and make informed choices for a safer home!

Try for Free
WARNING
The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.