Tripolium pannonicum
sea aster
Found all around the coast of the British Isles, this native aster is a biennial or short-lived perennial with narrowly oval, rather fleshy leaves on upright stems up to 1m tall. From mid-summer into early autumn produces sprays of daisy flowers with yellow centres and pale purple or pink petals, though there are forms with no petals. Fluffy, silvery seedheads follow in autumn. A good late nectar source for butterflies
Other common names
blue daisypurple chamomile
see moresea aster
sea sharewort
sea star
sea starwort
serapias turbith
tripoly
Synonyms
Tripolium vulgareAster tripolium
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple Pink Yellow | Green | ||
| Autumn | Purple Pink Yellow | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed Hardiness
H5Botanical details
- Family
- Asteraceae
- Native to GB / Ireland
- Yes
- Foliage
- Deciduous
- Habit
- Bushy
- Name status
Correct
How to grow
Cultivation
A maritime plant mostly found on saltmarshes and tidal estuaries, occasionally on coastal cliffs and rocks. Likes a sunny, open position; tolerates salty wind and even occasional flooding
Propagation
Propagate by seed or by division
Suggested planting locations and garden types
- Coastal
- Cottage and informal garden
- Flower borders and beds
Pruning
No pruning required. Can be cut down in late autumn or early spring
Pests
Generally pest-free
Diseases
Generally disease-free
Get involved
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