Does it need a lot of water?

No, it prefers well-draining soil and can handle dry spells once established.

Should I deadhead the flowers?

Yes, removing spent blooms can encourage a second flush of flowers.

Plant guide

Sea Thrift.

Armeria maritima

Pronounced ar-MEER-ee-uh muh-RIT-ih-muh

Also known as Thrift, marsh daisy, sea cushion, sea daisy, sea thrift, sea-pink, thift seapink, thrift seapink

Armeria maritima — Photo by Brian Starzomski (CC0) via gbif

Sea Thrift is a charming, low growing perennial that loves coastal conditions. It produces lovely globe shaped flower heads that sit atop slender stems. You will find it is a perfect choice for rock gardens or borders.

Another photo of Sea Thrift — Photo by Michel Langeveld (CC BY) via iNaturalist

At a glance

Care level: Easy
Plant type: Perennial
Light: Full sun
Indoor light: Direct sun
Water: Every 7 to 14 days
Mature size: 12 inches
Growth rate: Medium
Hardiness: USDA 3 to 9
Bloom time: Late spring to early summer

Care

Plant this beauty in well draining soil to prevent root rot. Keep an eye out for mushy leaves which indicate too much moisture. Deadhead spent blooms to encourage a second flush of flowers.

Watering: Allow the soil to dry out slightly between waterings.
Feeding: Apply a balanced liquid fertilizer sparingly during the spring.
Pruning: Remove faded flower stems to keep the plant tidy.
Repotting: Repot only when the plant becomes crowded in its container.
Soil: Sandy or rocky
Soil pH: Neutral to slightly acidic
Temperature: -30 to 30°C
Humidity: 40 to 70%
Drought tolerance: High
Lifespan: Perennial, typically 3 to 5 years.
Deer and rabbits: High

Signs it needs repotting

Roots growing out of the drainage holes
Water sitting on the surface of the soil
Plant growth slowing significantly

Safety

People: There are no significant reports of toxicity in humans, but it is not intended for consumption.
Children: The plant is not poisonous, but the small, dense clumps can be a choking hazard if pieces are ingested by small children.
Contact allergens: The foliage can cause mild skin irritation in sensitive individuals.
Airborne allergens: The pollen may trigger mild seasonal allergies in sensitive people.
Edibility: This plant is not considered edible and should not be consumed.

How to identify it

Grass like tufted foliage
Globe shaped pink or white flowers
Slender leafless flower stalks
Compact mounding growth habit

Height: 0.15 to 0.3m
Spread: 0.2 to 0.3m
Leaves: green, blue-green, evergreen
Flowers: pink, white, rose, 2 to 3cm

Problems to watch for

Root rot · Occurs when the soil stays too wet for too long.
Aphids · Small insects that may cluster on the flower stems.

By symptom

Plant problems by symptom

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Growing it

Propagation: division, seed
When to plant: spring, autumn
Overwintering: Keep the soil relatively dry during the winter months to prevent crown rot. No special protection is needed in most climates.
In containers: It grows well in pots provided you use a gritty, fast-draining potting mix and a container at least 20 centimeters wide.

Division

1. Dig up the plant in early spring.
2. Gently pull the clump apart into smaller sections.
3. Replant the divisions immediately in well-draining soil.

Plant these in groups of three or five to create a natural, mounded effect in your garden.

Grows well with

Lavender · They share similar requirements for sun and well-draining soil.
Sedum · These succulents provide a nice textural contrast in rock gardens.

Similar species

Sea Lavender · It also thrives in coastal conditions and has a similar growth habit.

Science

Family: Plumbaginaceae
Genus: Armeria
Order: Caryophyllales
Class: Magnoliopsida
Native range: Northern Hemisphere, primarily coastal regions of Europe and North America.
Conservation: It is not currently endangered, though some local populations are protected in specific coastal habitats.

It survives in harsh coastal conditions by tolerating high salinity and poor, sandy soils.

Value to wildlife: nectar source
Pollinators: bees, butterflies
Uses: rock gardens, coastal landscaping, border edging, container gardening

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 7/9
Soil reaction: 6/9
Light: 8/9
Temperature: 5/9
Moisture: 3/9
Nutrients: 2/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need a lot of water?: No, it prefers well-draining soil and can handle dry spells once established.
Should I deadhead the flowers?: Yes, removing spent blooms can encourage a second flush of flowers.

Where the name comes from

The name Armeria is an old French name for a type of pink, while maritima refers to its preference for seaside habitats.

Good to know

It grows naturally on cliffs and salt marshes.
The flowers are actually dense clusters of many tiny florets.
It is highly tolerant of salt spray.

Also in

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This guide was generated with AI on October 19, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.