Introduction to the genus Erysimum
El Erysimum, Popularly known as wallflower o erysimo, is a fascinating genus within the Brassicaceae family, which also includes plants such as cabbage, mustard, and lobularia. This genus is composed of some 200-230 species of annual, biennial or perennial herbs and even some shrubs. Erysimum is recognized for its resistance, adaptability and spectacular flowering, making it a preferred choice for those who want a garden full of life and color for much of the year.
From temperate and Mediterranean zones From Southwest Asia, Macaronesia, North America, and the Mediterranean basin, Erysimum has spread to gardens around the world, both for its beauty and its ease of cultivation. Many species grow naturally near walls, rocks and slopes, which explains its ability to adapt to poor soils and adverse conditions.
Main characteristics of Erysimum
- Plant type: annual, biennial or perennial, with woody specimens at the base and shrubby in some species and cultivars.
- Level: From low plants of 15 cm to species and cultivars that reach 80 cm.
- Sheets: Lanceolate, narrow, colored deep green to grayish, persistent in mild climates.
- Flowers: Gathered in clusters or corymbs, with four petals and a wide range of colors (yellow, orange, red, violet, purple, white, mauve, pink, cream, among others), very scented and attractive to bees and butterflies.
- Flowering: Mainly in spring and summer, although some hybrids extend flowering into autumn.
- Resistance: Tolerant to drought, intense sun and, in many species, moderate frost.
- Usage: Rockery gardens, borders, flower pots, slopes, Mediterranean gardens, as cut flowers and in topiary design.
Main species and varieties of Erysimum
Within the Erysimum genus, there are wild and cultivated species, as well as numerous hybrids and cultivars selected for their long-flowering, color, and hardiness. Among the most popular are:
- Erysimum cheiri (Yellow wallflower): A short-lived biennial or perennial plant, between 15 and 80 cm tall, widely cultivated as an ornamental. Its clusters of intensely fragrant flowers display colors from the bright yellow to purple, through red and pink. Widely used in traditional gardening and floral arrangements.
- Erysimum 'Bowles Mauve': One of the most valued cultivars, with a bushy appearance and evergreen leaves of color grayish-greenIt produces dense clusters of mauve flowers from spring to autumn, requiring little maintenance. It is highly drought-resistant and popular in low-irrigation gardens and Mediterranean areas.
- Erysimum bicolor: A species endemic to the Canary Islands and Madeira. It is known as the "alhelí montano" (mountain wallflower) and is notable for its ability to withstand adverse conditions and its two-colored flowers.
- Erysimum scoparium: Known as the “Teide wallflower,” it is a woody Canary Island endemic, with long flower stems that open in dark purple tones and evolve toward creamy yellow and mauve.
- Erysimum linifolium: Of Iberian origin, 50-70 cm tall, evergreen foliage and flowers in violet or lavender tones.
- Erysimum capitatum: Native to North America, present in prairies and mountainous areas.
In addition, there are numerous garden cultivars obtained from hybrids, especially Erysimum cheiri, with a very wide range of colors and shapes, suitable for all tastes and needs.
Ideal growing conditions for Erysimum
Caring for Erysimum flowers is simple, but to ensure their exuberant development and durability, it is essential to pay attention to several key aspects:
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The Erysimum prefers sunny locations, although some varieties tolerate partial shade, especially in areas with very hot summers. Exposure to full sun promotes more abundant flowering and prolonged, as well as denser foliage.
Temperature and resistance
- In general, it tolerates temperatures soft and warm and withstands light frosts (some species can withstand temperatures as low as -12°C). If you'd like to learn more about caring for plants that are resistant to different temperatures, visit our guide to planting tulips.
- In areas with harsh winters, it is recommended to protect the base with mulch or place the plants in sheltered areas.
Soil type
- Requires well-drained substrates, light, with a neutral to slightly alkaline pH.
- It supports poor soils, but prefers those enriched with organic matter for optimal flowering. To improve poor soils, consult our Guide for plants in poor soils.
- Avoid puddles; if the soil is heavy, improve drainage with coarse sand or gravel.
Irrigation
- Moderate: It's better to underwater than overwater. During flowering, water regularly, but allow the top layer of the substrate to dry between waterings.
- In winter, reduce watering to a minimum, always avoiding flooding to prevent attacks of mushrooms such as powdery mildew (white mold).
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- Enrich the earth with well-rotted manure or compost before planting.
- During flowering, add a balanced mineral fertilizer every 4 weeks to promote flower development.
- In the fall, apply organic matter again to maintain plant health.
Pruning
- Performs light pruning after the main flowering to stimulate new shoots and a second flush of flowers.
- Remove faded flowers to prolong flowering and prevent plant exhaustion.
- Training pruning (late winter) keeps the shrub compact and vigorous. For topiary, trim gently, avoiding pruning during flowering.
Transplant
- It is preferable to transplant in autumn or late winter, when temperatures are mild.
- In pots, always choose a container with good drainage.
Multiplication and reproduction of Erysimum
The Erysimum is spreads easily by various methods:
- By seeds: Sow in late winter or early spring, once the risk of frost has passed. It's recommended to soak the seeds a few hours before sowing to promote germination. Keep the substrate slightly moist and provide plenty of light.
- By cuttings: Select semi-woody cuttings in spring or late summer. Plant them in moist, well-drained soil in a warm, protected location until they root.
- By division of bushes: In perennial varieties, dividing clumps every few years rejuvenates the plant and improves its vigor.
Common pests and diseases
Despite its good general resistance, Erysimum can be affected by common garden pests and diseases:
- Powdery mildew (white mold): It appears as a white powder on leaves and stems in humid conditions, with overwatering or poor ventilation. Avoiding waterlogging and ensuring good air circulation is key.
- Aphids, whiteflies and caterpillars: They attack buds and flowers. It's advisable to check plants periodically and use organic insecticides or potassium soap in case of infestation.
- Leaf miner: It leaves grooves on the leaves, weakening the plant. Remove the affected leaves and apply preventative treatments with biological products if the problem persists.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
Frequently Asked Questions About Erysimum Care
- Is Erysimum suitable for beginners?
Yes, it is one of the easiest flowering plants to grow and maintain in the garden. - How long does flowering last?
It can last for several months, especially in perennial hybrids as 'Bowles Mauve'. - Does it tolerate drought?
Once established, Erysimum is very resistant to periods of drought, making it ideal for dry climates or gardens with reduced irrigation. - Is it toxic to pets?
In general, Erysimum is not considered toxic, but it is advisable to avoid ingestion, especially in large quantities. - How often should I prune?
Perform light pruning after the main flowering and formative pruning in late winter.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
Frequently Asked Questions About Erysimum Care
- Is Erysimum suitable for beginners?
Yes, it is one of the easiest flowering plants to grow and maintain in the garden. - How long does flowering last?
It can last for several months, especially in perennial hybrids as 'Bowles Mauve'. - Does it tolerate drought?
Once established, Erysimum is very resistant to periods of drought, making it ideal for dry climates or gardens with reduced irrigation. - Is it toxic to pets?
In general, Erysimum is not considered toxic, but it is advisable to avoid ingestion, especially in large quantities. - How often should I prune?
Perform light pruning after the main flowering and formative pruning in late winter.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
Frequently Asked Questions About Erysimum Care
- Is Erysimum suitable for beginners?
Yes, it is one of the easiest flowering plants to grow and maintain in the garden. - How long does flowering last?
It can last for several months, especially in perennial hybrids as 'Bowles Mauve'. - Does it tolerate drought?
Once established, Erysimum is very resistant to periods of drought, making it ideal for dry climates or gardens with reduced irrigation. - Is it toxic to pets?
In general, Erysimum is not considered toxic, but it is advisable to avoid ingestion, especially in large quantities. - How often should I prune?
Perform light pruning after the main flowering and formative pruning in late winter.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
Frequently Asked Questions About Erysimum Care
- Is Erysimum suitable for beginners?
Yes, it is one of the easiest flowering plants to grow and maintain in the garden. - How long does flowering last?
It can last for several months, especially in perennial hybrids as 'Bowles Mauve'. - Does it tolerate drought?
Once established, Erysimum is very resistant to periods of drought, making it ideal for dry climates or gardens with reduced irrigation. - Is it toxic to pets?
In general, Erysimum is not considered toxic, but it is advisable to avoid ingestion, especially in large quantities. - How often should I prune?
Perform light pruning after the main flowering and formative pruning in late winter.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
Frequently Asked Questions About Erysimum Care
- Is Erysimum suitable for beginners?
Yes, it is one of the easiest flowering plants to grow and maintain in the garden. - How long does flowering last?
It can last for several months, especially in perennial hybrids as 'Bowles Mauve'. - Does it tolerate drought?
Once established, Erysimum is very resistant to periods of drought, making it ideal for dry climates or gardens with reduced irrigation. - Is it toxic to pets?
In general, Erysimum is not considered toxic, but it is advisable to avoid ingestion, especially in large quantities. - How often should I prune?
Perform light pruning after the main flowering and formative pruning in late winter.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
Frequently Asked Questions About Erysimum Care
- Is Erysimum suitable for beginners?
Yes, it is one of the easiest flowering plants to grow and maintain in the garden. - How long does flowering last?
It can last for several months, especially in perennial hybrids as 'Bowles Mauve'. - Does it tolerate drought?
Once established, Erysimum is very resistant to periods of drought, making it ideal for dry climates or gardens with reduced irrigation. - Is it toxic to pets?
In general, Erysimum is not considered toxic, but it is advisable to avoid ingestion, especially in large quantities. - How often should I prune?
Perform light pruning after the main flowering and formative pruning in late winter.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
Frequently Asked Questions About Erysimum Care
- Is Erysimum suitable for beginners?
Yes, it is one of the easiest flowering plants to grow and maintain in the garden. - How long does flowering last?
It can last for several months, especially in perennial hybrids as 'Bowles Mauve'. - Does it tolerate drought?
Once established, Erysimum is very resistant to periods of drought, making it ideal for dry climates or gardens with reduced irrigation. - Is it toxic to pets?
In general, Erysimum is not considered toxic, but it is advisable to avoid ingestion, especially in large quantities. - How often should I prune?
Perform light pruning after the main flowering and formative pruning in late winter.
How to use Erysimum in the garden and on the terrace
- Rockeries and slopes: Species such as Erysimum bicolor and E. scoparium are perfect for low-maintenance gardens and exposed areas.
- Borders and flowerbeds: Vibrantly colored cultivars provide contrast and color along paths or in mixed borders with other gray-leaved perennials, such as lavenders and nepetas.
Main Erysimum cultivars and their advantages
- 'Bowles Mauve': Compact size (up to 80 cm), continuous flowering Mauve in color from spring to autumn, very hardy and low-maintenance. It attracts pollinators and requires light pruning.
- 'Jacob's Jacket': Low, leafy shrub with flowers in shades of pink, red and peachy orange.
- 'Orange Flame': Vibrant orange flowers and evergreen foliage, ideal for sunny borders.
- 'Ruston Royal': Light and dark mauve flowers, perfect for standing out in combination with plants with greyish foliage.
- 'Walberton's Fragrant Sunshine': Compact, with very aromatic yellow flowers that open from chocolate brown buds.
- x marshallii (Erysimum allioni): Dark orange flowers, very easy to grow and excellent alongside other perennials.
Expert tips for a healthy, flowering Erysimum
- Choose varieties adapted to the local climate to maximize their resistance.
- Combine Erysimum with other drought-resistant perennials such as lavender, nepeta or euphorbia to create low-watering gardens.
- Avoid excess nitrogen fertilizer, which greatly stimulates foliage but can reduce flowering.
- In calcareous soils, Erysimum grows particularly well, but if the soil is acidic it may require the addition of a little agricultural lime.
- In humid areas, check periodically to prevent the proliferation of fungi.
Ecological characteristics and biodiversity value
Erysimum is not only an ornamental plant, but provides great benefits to the garden ecosystem:
- Its nectariferous flowers They attract bees, butterflies and a variety of pollinating insects, contributing to the health of the environment.
- Drought-resistant plants, ideal for sustainable and low-water gardens.
- In combination with other species, it promotes the biodiversity and biological balance in gardens and urban green spaces.
