Choose a location that offers consistent sunlight. A south-facing windowsill or an unobstructed outdoor area is suitable. If indoors, complement natural light with artificial grow lights to mimic the sun's rays.

Annual thymelaea (Thymelaea passerina)

Also known as: Spreading Spurge Flax, Passerine Thymelaea

Annual thymelaea (Thymelaea passerina) is a herbaceous plant prevalent in temperate and Mediterranean regions across Europe, Asia, and North Africa. It typically thrives in dry, sandy, or rocky soils and is commonly found in disturbed areas such as roadsides and fallow fields. The plant is known for its small, greenish-yellow flowers and slender stems. The species name, "passerina," refers to the resemblance of its black fruit to a sparrow's beak.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Annual thymelaea

Lifespan

Annual

Plant Type

Herb

Plant Height

25 cm

Spread

N/A (typically does not have a defined crown)

Leaf Color

Green

Flower Size

Approximately 2-3 mm

Flower Color

Yellow Green

Images of Annual thymelaea

Quickly Identify Annual thymelaea

Identify Thymelaea passerina by its thin, wiry stems, small linear leaves, and tiny, greenish-yellow flowers. It often forms a low, spreading mat.

Scientific Classification of Annual thymelaea

Phylum

Vascular plants

Class

Dicotyledons

Order

Malvales

Family

Mezereum

Genus

Sparrow-worts

Species

Annual thymelaea

Planting and Growing of Annual thymelaea

Care Difficulty

Moderate

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

4-6 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

How to Water Annual thymelaea?

Thymelaea passerina prefers a balanced approach to watering. The soil should be allowed to dry out slightly between waterings. Ideally, water until the top 2-3 centimeters of the soil are damp but not soggy. This allows for the roots to absorb necessary moisture without drowning.

What are the symptoms of an underwatered Annual thymelaea? ›

What should I do if my Annual thymelaea is not getting enough water? ›

What are the symptoms of an overwatered Annual thymelaea? ›

How to save an overwatered Annual thymelaea? ›

What Are the Sunlight Requirements for Annual thymelaea?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 4-6 hours daily

Thymelaea passerina thrives best with partial to full sun exposure, around 4-6 hours of sunlight daily. Reliable lighting supports vigorous growth, enhances flowering, and ensures better resilience against environmental stresses.

Optimal Light Intensity ›

Location Choice ›

Seasons Consideration ›

What Is the Ideal Temperature Range for Annual thymelaea?

Ideal Temperature: 60 ~ 75℉

The ideal temperature for Thymelaea passerina is between 60 to 75 degrees Fahrenheit. Within this range, the plant experiences optimal growth and health. This moderate range mimics the natural habitat of Thymelaea passerina, providing the necessary warmth for photosynthesis while avoiding stress from extreme temperatures.

What Soil is Best for Annual thymelaea?

Soil type: Sandy soil, Calcareous soil

Soil PH: 6.5 ~ 7.5

Thymelaea passerina thrives in well-draining soil that prevents water from pooling around its roots. This feature helps prevent root rot, a common issue in poorly drained soils, ensuring healthy growth and longevity for the plant. While Thymelaea passerina does not require overly rich soil, a moderate level of nutrients supports its growth cycle. A balanced nutrient profile will ensure the plant has access to the essentials without over-fertilization risks. Thymelaea passerina prefers soils that are neutral to slightly alkaline, with a pH ranging from 6.5 to 7.5. This pH range allows optimal absorption of nutrients, fostering robust plant development.

How to Fertilize Annual thymelaea?

Fertilizer type: Balanced

For Thymelaea passerina, it is important to use fertilizer sparingly as it thrives in low-nutrient environments. Use a diluted liquid fertilizer at half strength, about 1 tablespoon per gallon of water. When using granular fertilizers, apply sparingly around the base of the plant, approximately 1 teaspoon per plant.

How to Prune Annual thymelaea?

Pruning Time: Spring, Summer, Autumn

Begin pruning by cutting away any dead or damaged branches. This not only aids in preventing disease spread but also helps you see the plant's natural form, making it easier to shape effectively. Trim the plant back to maintain a compact and tidy shape. Focus on cutting back overgrown stems while ensuring that the plant retains an open center. This encourages new growth and ensures sunlight penetrates all parts of the plant. After shaping, look for areas where you can cut stems just above a leaf node. This practice encourages bushier growth as the plant diverts energy to the new shoots, enhancing overall plant fullness and vigor. More About Pruning Techniques→

How to Propagate Annual thymelaea plant?

Propagate Time: Early spring, Spring

Ensure that the seed tray is filled with a well-draining potting mix. The medium should be slightly moist but not waterlogged, providing the ideal environment for germination.

Scatter the Thymelaea passerina seeds evenly over the seed tray, lightly pressing them into the surface of the soil. Cover them with a thin layer of soil to protect them from being washed away.

Select a healthy plant and use a sharp knife to take cuttings from mature roots. Each cutting should be about 5-10 cm in length to ensure it has enough stored energy to sprout.

How to Repot Annual thymelaea plant?

Repotting frequency: Every 2-3 years

Thymelaea passerina should be repotted when you notice the roots are coming out of the drainage holes or the plant seems root-bound. If the soil dries out too quickly or the plant stops growing, it's a clear indication that repotting is necessary to provide more space and fresh nutrients.

Select a pot that is one size larger than the current one, ensuring adequate drainage holes to prevent waterlogging. A slightly wider pot encourages healthy root spread and prevents the plant from tipping over, promoting robust growth. Opt for a durable material like terracotta for its breathability.

Opt for a well-draining sandy soil mixture ideal for Thymelaea passerina. This soil type mimics its natural habitat and prevents root rot by allowing excess water to drain efficiently. Adding organic matter can enhance nutrition and support vigorous growth.

Toxicity

Ingestion

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.