How to Grow Mediterranean Coral
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Mediterranean Coral
Erysimum cheiri
flowerMediterranean Coral is a striking ornamental flowering plant known for its vibrant coral-orange blooms and compact growth habit. It belongs to the wallflower family and produces dense clusters of fragrant, four-petaled flowers that attract pollinators. This biennial or short-lived perennial thrives in well-drained conditions and is prized for adding warm color to gardens, borders, and containers.
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Example Mediterranean Coral timeline · Pittsburgh, PA (Zone 6b)
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Plant Mediterranean Coral
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Mediterranean Coral blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Mediterranean Coral dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 5-9, with best performance in zones 6-8
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Get my Mediterranean Coral timeline →Growth Stages
Germination
1-2 weeksSeeds sprout within 7-14 days at temperatures of 60-70°F. Tiny seedlings emerge with cotyledons (seed leaves).
Keep soil consistently moist but not soggy. Provide good light to prevent leggy growth. Maintain cool temperatures if possible.
Seedling to Young Plant
4-8 weeksTrue leaves develop; plants are small rosettes with linear foliage. Growth is slow during first months, especially if sown in fall.
Thin seedlings to proper spacing. Water gently and avoid wetting foliage. Begin fertilizing with dilute liquid fertilizer every 2-3 weeks.
Vegetative Growth
8-12 weeksPlant develops stronger stems and more foliage. Bushy growth habit becomes apparent. Leaves are lance-shaped and gray-green in color.
Continue regular watering and fertilizing. Pinch tips early to encourage bushier growth. Ensure excellent drainage to prevent root rot.
Flowering
4-8 weeks or longerDense racemes of fragrant, four-petaled coral-orange flowers appear along stems. Flowers may bloom for several weeks if conditions are favorable.
Deadhead spent flowers to extend blooming period and encourage more flowers. Reduce nitrogen fertilizer to avoid excess foliage at expense of flowers. Ensure consistent watering.
Seed Maturation
3-4 weeksIf flowers are not deadheaded, seed pods develop and mature. Pods turn brown and contain numerous tiny seeds when fully ripe.
Allow pods to dry on plant if collecting seeds. Harvest before pods split and scatter seeds naturally. Store dried seeds in cool, dry conditions.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick caterpillars; use row covers for young plants; apply Bacillus thuringiensis (Bt) if needed; encourage parasitic wasps
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Use row covers on seedlings; spray neem oil for heavy infestations; keep plants vigorous with good watering and nutrition
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Ensure good air circulation; avoid overhead watering; apply sulfur dust or fungicide if severe; remove affected leaves
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Ensure excellent drainage; avoid planting in same location year after year; add lime to raise soil pH; remove severely infected plants
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Increase humidity by misting foliage; spray with water to dislodge; use insecticidal soap if severe; encourage beneficial insects
Uses
Edible Flowers
CulinaryMediterranean Coral flowers are edible with a slightly peppery flavor and can be used as garnish in salads, desserts, and beverages. Their vibrant coral color makes them attractive for decorative plating in gourmet cuisine. [source]
Cut Flowers and Arrangements
HouseholdThe fragrant coral blooms are excellent for fresh flower arrangements, bouquets, and floral displays. Long stems and extended vase life make them suitable for both casual and formal arrangements. [source]
Dried Flowers
CraftFlowers can be air-dried and used in dried arrangements, pressed flower crafts, and flower pressing projects. The colors remain vibrant when properly dried. [source]
Pollinator Support
WildlifeMediterranean Coral attracts bees, butterflies, and other pollinators with its nectar-rich flowers. The plant provides early spring food sources when few other flowers are available. [source]
Garden Borders and Landscape Design
HouseholdCompact growth and vibrant coral color make Mediterranean Coral ideal for borders, rock gardens, containers, and ornamental plantings. It adds warm color to spring and early summer gardens. [source]
Harvest Tips
Harvest flowers by cutting stems in early morning when blooms are fully open for longest vase life (typically 7-10 days in a vase). For seed collection, allow pods to mature and turn brown, then harvest entire seed heads. Dry upside down in a paper bag to collect falling seeds. Seeds remain viable for 3-4 years when stored in cool, dry conditions.
Fun Facts
- 🌱 Mediterranean Coral is closely related to wallflowers (Erysimum species) and shares the family Brassicaceae with cabbage and broccoli, explaining shared pest vulnerabilities.
- 🌱 The plant is often treated as a biennial in cooler climates (sown in summer/fall for spring flowering) but can act as a short-lived perennial in warmer zones if conditions are favorable.
- 🌱 Its fragrant flowers emit a sweet, spicy scent that intensifies in warm weather and attracts a wide range of beneficial pollinating insects.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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