How to Grow Cornish Gold Daisy
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Cornish Gold Daisy
Argyranthemum 'Cornish Gold'
flowerArgyranthemum 'Cornish Gold' is a tender perennial daisy with bright golden-yellow flowers and finely divided, feathery foliage. It produces abundant blooms from spring through fall when grown in optimal conditions. This cultivar is prized for its cheerful color, long flowering period, and compact, bushy growth habit.
When should you plant Cornish Gold Daisy in your zone?
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Example Cornish Gold Daisy timeline · Pittsburgh, PA (Zone 6b)
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Plant Cornish Gold Daisy
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 Cornish Gold Daisy blooms
Around Jun 1≈ 45 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Cornish Gold Daisy dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-11; grown as an annual in cooler climates
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Transplant/Establishment
2-3 weeksYoung plant with developing root system and several sets of true leaves
Keep soil consistently moist but not waterlogged; place in bright indirect light for first 1-2 weeks, then transition to full sun. Harden off container plants before outdoor planting.
Flowering
4-6 months (spring through fall)Plant produces abundant bright golden-yellow single daisy flowers with yellow disk centers
Deadhead spent flowers regularly to promote continuous blooming. Fertilize every 2-3 weeks with balanced or slightly lower nitrogen fertilizer. Maintain consistent watering.
Peak Bloom/Maintenance
2-3 monthsPlant is full, compact, and covered with continuous blooms; may slow slightly in peak heat of midsummer
Continue deadheading. Reduce watering slightly during extreme heat. Cut back by one-third if plant becomes leggy. Pest and disease monitoring essential.
Winter/Rest
2-3 monthsIn frost-free climates, plant may flower intermittently; in cooler areas, plant dies back or is overwintered indoors
In zones 9-11, reduce watering and cease fertilizing. Cut back in early spring before new growth. In cooler zones, bring containers indoors to a bright, cool location or treat as annual.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with insecticidal soap or neem oil; increase air circulation; use yellow sticky traps for monitoring and control
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Spray with water to dislodge; use insecticidal soap, neem oil, or pyrethrin-based sprays; encourage beneficial insects
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Increase humidity; spray foliage with water; apply miticides or neem oil if severe; improve air circulation
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Remove infested leaves; apply spinosad or neem oil; maintain plant vigor; reduce watering if overwatering is occurring
Uses
Edible flower garnish
CulinaryThe bright golden petals are edible and make a striking garnish for salads, desserts, and drinks. They add a subtle, slightly tangy, pleasant flavor. [source]
Cut flowers and arrangements
HouseholdCornish Gold is excellent for fresh flower arrangements and long-lasting bouquets. The cheerful yellow color brightens indoor spaces and the flowers last over a week in water. [source]
Dried flowers
CraftFlowers can be dried for craft projects, potpourri, and dried arrangements. Hang bunches upside down in a warm, dry location for 2-3 weeks. [source]
Pollinator magnet
WildlifeAbundant open flowers attract bees, butterflies, and other beneficial insects throughout the growing season, supporting local pollinator populations. [source]
Traditional herbal use
MedicinalArgyranthemum species have been used in traditional medicine for their purported anti-inflammatory and digestive properties, though modern clinical evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Deadhead spent flowers regularly by pinching or cutting just below the flower head to encourage continuous blooming. For cut flowers, pick in early morning when stems are turgid; flowers typically last 7-10 days in a vase with fresh water.
Fun Facts
- 🌱 Argyranthemum 'Cornish Gold' originated in Cornwall, England, and is named for both its location of origin and its brilliant golden-yellow flowers.
- 🌱 Despite being called a daisy, Argyranthemum is in the Asteraceae family and is more closely related to chrysanthemums than common lawn daisies.
- 🌱 This cultivar can bloom nearly year-round in mild Mediterranean and subtropical climates, making it a staple in frost-free gardens for continuous golden color.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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