European wallflower (Erysimum hieraciifolium)

Also known as: Hieracium-leaved wallflower, Hawkweed-leaved wallflower

The European wallflower (Erysimum cheiri) exhibits several adaptations that enable it to flourish in rocky habitats. Its compact, bushy growth form minimizes water loss and exposure to harsh winds. The plant's deep root system is crucial for accessing water stored deep within rocky crevices, ensuring survival during drought periods. Additionally, its vibrant yellow flowers attract pollinators, ensuring successful reproduction. The leaves, which are typically lance-shaped and covered with fine hairs, help reduce water loss by reflecting sunlight and decreasing transpiration. These characteristics collectively allow the European wallflower to thrive in its native, rocky environments.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of European wallflower

Lifespan

Biennial

Plant Type

Herb

Plant Height

30-90 cm (12-35 inches)

Spread

10-30 cm (4-12 inches)

Leaf Color

Green

Flower Size

1-1.5 cm (0.4-0.6 inches)

Flower Color

Yellow

Images of European wallflower

Quickly Identify European wallflower

This plant can be identified by its lanceolate leaves that resemble those of the Hieracium (hawkweed). The flowers are small, yellow, and four-petaled, typical of the mustard family.

Scientific Classification of European wallflower

Phylum

Vascular plants

Class

Dicotyledons

Order

Brassicales

Family

Cruciferae

Genus

Wallflower

Species

European wallflower

Planting and Growing of European wallflower

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

4-8 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

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water European wallflower?

For Erysimum hieraciifolium, the watering amount should be around 250 ml per session. This amount ensures that the soil receives enough moisture without becoming waterlogged. Water until the soil feels consistently moist at a depth of about 2 inches. If water begins to pool or the soil becomes swampy, reduce the water provided.

What are the symptoms of an underwatered European wallflower? ›

What should I do if my European wallflower is not getting enough water? ›

What are the symptoms of an overwatered European wallflower? ›

How to save an overwatered European wallflower? ›

What Are the Sunlight Requirements for European wallflower?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6-8 hours daily

Keeping Erysimum hieraciifolium in full sun to partial sun ensures maximum growth efficiency and robust flowering, maintaining its visual appeal and healthy foliage.

What type of sunlight does Erysimum hieraciifolium prefer? ›

How can I achieve ideal lighting for Erysimum hieraciifolium? ›

What benefits does Erysimum hieraciifolium gain from ideal lighting? ›

What Is the Ideal Temperature Range for European wallflower?

Ideal Temperature: 60 ~ 75℉

The ideal temperature range for growing Erysimum hieraciifolium is between 60°F and 75°F. In this range, the plant can efficiently perform photosynthesis, maintain sufficient metabolic activity, and exhibit healthy growth and flowering.

What Soil is Best for European wallflower?

Soil type: Loam, Sandy loam, Calcareous soil

Soil PH: 6.5 ~ 7.5

Erysimum hieraciifolium thrives in well-drained soils, which help prevent root rot by allowing excess water to escape. This environment fosters healthy root systems and vigorous plant growth by ensuring that roots do not remain waterlogged. This plant requires soil with moderate fertility, enabling it to access necessary nutrients without promoting overly vigorous foliage at the expense of flowers. Balanced soil nutrition encourages healthy blooms and maintains plant vitality. Preferring slightly alkaline conditions, this plant benefits from soils with a pH leaning towards neutrality. This pH balance optimizes nutrient availability and absorption, crucial for maintaining vibrant and thriving growth.

How to Fertilize European wallflower?

Fertilizer type: Balanced

For Erysimum hieraciifolium, it is crucial to provide a balanced fertilizer. Use a diluted liquid fertilizer with a ratio of 10-10-10 or similar, at half strength, to avoid burning the roots. Apply approximately 100 ml per plant each time.

How to Prune European wallflower?

Pruning Time: Spring, Summer

Begin by removing any dead or wilting flowers to prevent seed formation and promote new blooms. Trim back any leggy or extended stems to encourage bushier growth. Pay attention to the shape of the plant, keeping it compact and tidy. Cut just above a leaf node to stimulate new shoots. Wear gloves to protect your hands from potential irritating sap and to maintain hygiene. Ensure that you dispose of all cuttings properly to prevent the spread of disease. More About Pruning Techniques→

How to Propagate European wallflower plant?

Propagate Time: Spring, Early spring

To propagate Erysimum hieraciifolium effectively from seeds, fill your seed trays with a well-draining potting mix. Sow the seeds lightly on the surface, covering them with a thin layer of soil. Ensure the soil is kept moist, but not soggy, to support germination.

Select healthy, non-flowering shoots from the parent plant for cutting propagation. Cut a 4 to 6-inch section just below a node. Remove any leaves from the lower half and dip the cut end in rooting hormone to stimulate root growth.

Place the prepared cuttings in a container filled with a moist, well-draining potting mix. Keep the container in a bright, indirect light location. Covering the container with a plastic bag can help retain humidity, which is crucial for root development.

How to Repot European wallflower plant?

Repotting frequency: Every 2-3 years

Erysimum hieraciifolium typically needs repotting when its roots are visibly outgrowing the current pot, or the plant shows signs of stunted growth. If you notice decreased flower production or the soil is compacted and drains poorly, these are also cues that repotting is necessary.

Opt for a pot that is 2-3 inches larger in diameter than the current container. It should have adequate drainage holes to prevent waterlogging, which can lead to root rot. Choosing the right pot size ensures appropriate space for root expansion and proper aeration, enabling the plant to thrive.

Select a well-draining loamy mix to provide a balance of moisture retention and aeration. Such a soil mix prevents water from stagnating around the roots, reducing the risk of fungal infections and promoting healthy 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.