Also known as Alpine Fleabane · Beach Aster · Beach Daisy
Seaside Fleabane (Erigeron glaucus) is a low-growing perennial with blue-green foliage and daisy-like purple-blue flowers that bloom from spring through summer.
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Prefers at least 6 hours of direct sunlight daily for best flowering.
Moderate
50% intensity
Allow soil to dry slightly between waterings. Drought tolerant once established.
Sandy, Well-drained
50% intensity
Hardy
25% intensity
Thrives in temperate climates; generally hardy in USDA zones 4-9.
Low
25% intensity
Fertilize sparingly in spring; not a heavy feeder.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water moderately when the top 2-3 cm of soil feels dry. Seaside Fleabane prefers well-drained soil and can tolerate some drought once established.
Avoid overwatering, which can lead to root rot, especially in heavier soils. Reduce watering in winter when growth slows.
Deadhead spent flowers regularly to encourage continuous blooming and maintain a tidy appearance. Prune back plants in late autumn or early spring to remove dead or damaged foliage and to shape the plant.
This also helps prevent self-seeding if unwanted.
Propagate by division of established clumps in early spring or autumn. Seeds can also be sown in autumn or early spring, either directly outdoors or in a seed tray. Germination may be erratic.
Cuttings can be taken in late spring.
Repot container-grown plants every 2-3 years, or when they become root-bound. Choose a pot that is only slightly larger than the current one.
Use a well-draining potting mix, such as one containing grit or perlite, to ensure good aeration and prevent waterlogging.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Seaside Fleabane (Erigeron glaucus)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Erigeron |
| Species | Erigeron glaucus |
Similar in genus Erigeron
Answers based on plant encyclopedia data
