How to Grow Seaside Daisy
iNaturalist
Seaside Daisy
Erigeron glaucus
flowerSeaside daisy is a low-growing, mat-forming perennial native to coastal California with delicate pink, purple, or lavender daisy-like flowers and silvery-green foliage. It thrives in sandy, well-draining soils and is highly tolerant of salt spray, coastal winds, and drought once established. This charming plant is perfect for rock gardens, borders, and coastal landscapes.
When should you plant Seaside Daisy in your zone?
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Example Seaside Daisy timeline · Pittsburgh, PA (Zone 6b)
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Plant Seaside 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 Seaside Daisy blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Seaside Daisy dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 8b-10b; best in coastal California and similar mild climates
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Get my Seaside Daisy timeline →Growth Stages
Seedling
2-3 weeksTiny seedlings with first true leaves appearing; very delicate and small
Keep soil lightly moist but not wet; provide bright light; thin seedlings to prevent damping off
Flowering
8-16 weeks (spring to early summer, can rebloom in fall)Daisy-like flowers bloom in shades of pink, purple, or lavender; flowers appear above foliage on short stems
Deadhead spent flowers to encourage continuous blooming; reduce watering slightly; watch for powdery mildew in humid conditions
Maturity
Ongoing (perennial)Plant reaches full size as spreading ground cover; flowering becomes prolific
Minimal care needed; extremely drought tolerant; cut back lightly in late winter to maintain shape; divide every 2-3 years if desired
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Ensure good air circulation; avoid overhead watering; apply sulfur spray or neem oil if severe; resistant varieties available
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Increase humidity with occasional misting; spray with water to dislodge; use miticide if severe
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Spray with strong water stream; apply insecticidal soap; encourage natural predators like ladybugs
Uses
Edible Flowers
CulinaryThe delicate daisy flowers are edible and can be used as a garnish for salads, desserts, or as a mild herb tea. They offer a slightly bitter, floral note to culinary preparations. [source]
Coastal Landscaping & Salt Tolerance
HouseholdSeaside daisy is invaluable for coastal gardens where salt spray and windy conditions would kill most plants. Its natural salt tolerance makes it ideal for seaside properties, rock gardens, and erosion control. [source]
Pollinator Attraction
WildlifeThe nectar-rich flowers attract bees, butterflies, and other beneficial insects, making it an excellent plant for supporting pollinators in the garden. [source]
Dried Flower Arrangements
CraftThe delicate flowers dry well and retain their color, making them suitable for pressed flower crafts, dried arrangements, and decorative projects. [source]
Traditional Herbal Use
MedicinalSome coastal Native American traditions used Erigeron species for minor medicinal purposes, though it is not commonly used in modern herbalism. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Seaside daisy is primarily grown for ornamental flowers rather than harvest. Deadhead spent blooms regularly throughout the flowering season to promote continuous blooming. Cut flowers can be enjoyed in small arrangements; best if cut in early morning when blooms are fully open.
Fun Facts
- 🌱 Seaside daisy is native exclusively to coastal bluffs and beaches of California, thriving in one of the harshest plant environments—salt spray, sandy soil, and strong winds.
- 🌱 The name 'Erigeron' comes from Greek words meaning 'early old man,' referring to how quickly the seed heads turn white and wispy, resembling an old man's beard.
- 🌱 This plant is highly fire-resistant due to its low-growing habit and minimal dead plant material, making it valuable for fire-wise landscaping in California.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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