<h1>Seaside Fleabane, Erigeron glaucus</h1>

Photo is "seaside fleabane" by Joseph Morlan is licensed under CC BY-SA 4.0.

Seaside Fleabane, scientifically known as Erigeron glaucus, is a fascinating coastal plant that thrives in sandy and rocky habitats along the coastlines of California and Oregon. This article will delve into the various aspects of Seaside Fleabane, including its physical characteristics, habitat, ecological significance, and its potential uses in landscaping and gardening. By the end of this comprehensive guide, you will have a deep understanding of this remarkable plant and its role in coastal ecosystems.

I. Physical Characteristics

1. Appearance
Seaside Fleabane is a perennial plant that typically grows up to 2 feet tall, with slender, erect stems and narrow leaves. The leaves are often bluish-green in color, hence the species name "glaucus," which means "bluish-gray." The plant produces daisy-like flowers with white or pale pink petals surrounding a yellow center.

2. Floral Structure
The flowers of Seaside Fleabane are composed of numerous tiny disk florets and ray florets. The disk florets are located at the center and form a prominent yellow disc, while the ray florets surround the disc and give the flowers their distinctive appearance. These flowers attract various pollinators, including bees, butterflies, and other insects.

Photo is "seaside fleabane" by Al Kordesch is marked with CC0 1.0.

II. Habitat and Distribution

1. Coastal Range
Seaside Fleabane thrives in coastal habitats, particularly in sandy or rocky areas along the Pacific coast. It is native to California and Oregon, where it can be found growing along beaches, cliffs, dunes, and coastal bluffs. The plant has adapted to the harsh conditions of these environments, including salt spray and strong winds.

2. Ecological Significance
Seaside Fleabane plays a crucial role in stabilizing sand dunes and preventing erosion along coastal regions. Its extensive root system helps bind the soil together, reducing the impact of wind and water erosion. Additionally, the plant provides habitat and food for various insects and birds, contributing to the overall biodiversity of coastal ecosystems.

III. Cultivation and Gardening

1. Soil and Light Requirements
Seaside Fleabane prefers well-drained sandy or loamy soil with a pH range of 6.0 to 7.5. It thrives in full sun but can tolerate partial shade. The plant is drought-tolerant once established but benefits from occasional watering during prolonged dry spells.

2. Propagation and Maintenance
Seaside Fleabane can be propagated through seeds or by division. Seeds should be sown in early spring, and the seedlings can be transplanted once they have developed a few true leaves. Division is best done in early spring or fall when the plant is dormant. Regular pruning can help promote compact growth and prolong the plant's lifespan.

3. Landscaping and Garden Use
Seaside Fleabane is a popular choice for coastal gardens and landscaping projects. Its attractive flowers, low maintenance requirements, and ability to withstand coastal conditions make it an ideal plant for seaside gardens, sandy landscapes, or even rock gardens. It can be used as ground cover, border plants, or in mixed perennial plantings.

Photo is "seaside fleabane" by Matt Berger is licensed under CC BY 4.0.

Conclusion

Seaside Fleabane, Erigeron glaucus, is a remarkable coastal plant that thrives in sandy and rocky habitats along the Pacific coast. Its bluish-green leaves, daisy-like flowers, and ecological significance make it a valuable addition to coastal ecosystems and gardens.