Spreading wallflower (Erysimum repandum)

Spreading wallflower

Also known as: Treacle mustard

Spreading wallflower (Erysimum repandum) is also known by the names spreading treacle-mustard and bushy wallflower. It is native to Eurasia and is an introduced species in many areas of the world. It has developed an herbicide resistance over the years.

Scientific classification

Species

Spreading wallflower (Erysimum repandum)

Mustards, capers, and allies

Instantly identify plants with a snap

Snap a photo for instant plant ID, gaining quick insights on disease prevention, treatment, toxicity, care, uses, and symbolism, etc.

Download the App for Free

Annual

Lifespan

60 cm

Spread

6 mm

Flower Size

Yellow, Green

Flower Color

Deciduous

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Spreading wallflower

Distribution of Spreading wallflower

Distribution Map

Spreading wallflower is native to a swath of Eurasia ranging from southeastern Europe through to Central Asia. It has been introduced and naturalized in parts of North America, South America, and Australia. The range extension signifies the plant's adaptability to diverse ecological regions beyond its initial habitats across temperate and subtropical zones.

Native

Cultivated

Invasive

Introduced

No species reported

Discover plant distribution and habitat

Gain insights into where plants thrive and how they adapt, helping you identify, cultivate, and protect them with essential information on habitats, distribution maps, and climate trends.

Download the App for Free

Habitat

Cultivated ground, railrads, roadsides

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Spreading wallflower

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Spreading wallflower thrives in fluctuating moisture levels and prefers drier conditions, making it drought-tolerant. A weekly watering regimen mimics its natural cycles. Typically grown outdoors, it benefits from seasonal rains, ideally suited for temperate climates with regular precipitation.

Fertilize: For spreading wallflower, use balanced fertilizers during the growing season, switching to high nitrogen before flowering. Apply monthly, adjusting amounts based on plant maturity. Monitor spreading wallflower's response and avoid over-fertilization. Water after application to distribute nutrients and prevent root burn.

Pruning: Spreading wallflower features vibrant blooms and a spreading growth habit. Prune in early to late spring post-blooming to remove dead stems and shape the plant. Proper pruning enhances air circulation, reduces disease risk, and encourages abundant flowering, ensuring spreading wallflower stays vigorous and attractive.

Propagation: Spreading wallflower can be propagated by sowing mature, dry seeds from its fruits. Use well-draining, loose soil in a sunny spot, lightly covering seeds. Keep the soil moist until germination. Thin seedlings as needed to prevent overcrowding, ensuring optimal growth and health of spreading wallflower.

Get tips and tricks for your plants.

Keep your plants happy and healthy with our guide to watering, lighting, feeding and more.

Download the App for Free

Learn More About Spreading wallflower